FLUKE 1522 (01) PDF MANUAL


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PDF Content Summary: Hart Scientific 1522 Handheld Thermometer Readout User’s Guide Rev. 5B2202 Fluke Corporation, Hart Scientific Division 799 E. Utah Valley Drive • American Fork, UT 84003-9775 • USA Phone: +1.801.763.1600 • Telefax: +1.801.763.1010 E-mail: support@hartscientific.com hartscientific.com Subject to change without notice. • Copyright © 2005 • Printed in USA Rev. 5B2202 Table of Contents 1 Before You Start . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 Symbols Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.2.1 WARNINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.2.2 CAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.3 Authorized Service Centers. . . . . . . . . . . . . . . . . . . . . . 4 2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3 Specifications and Environmental Conditions. . . . . . . . . . 9 3.1 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3.2 Environmental Conditions. . . . . . . . . . . . . . . . . . . . . . 10 3.3 Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4 Quick Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.1 Unpacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.2 Use Proper Care with the 1522 and Accessories . . . . . . . . . . 13 4.3 Learn About the Features and Components. . . . . . . . . . . . . 13 4.4 Connect the Probe. . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.5 Connect the Power Source . . . . . . . . . . . . . . . . . . . . . 14 4.6 Switch the Power On . . . . . . . . . . . . . . . . . . . . . . . . 14 4.7 Measure Temperature . . . . . . . . . . . . . . . . . . . . . . . . 14 5 Parts and Controls . . . . . . . . . . . . . . . . . . . . . . . . 17 5.1 Front View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 5.2 Top and Side View . . . . . . . . . . . . . . . . . . . . . . . . . 19 5.3 Back View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 5.4 Internal Features. . . . . . . . . . . . . . . . . . . . . . . . . . . 20 5.5 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 6 General Operation . . . . . . . . . . . . . . . . . . . . . . . . 25 6.1 Battery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 6.2 DC Power Source . . . . . . . . . . . . . . . . . . . . . . . . . . 26 6.3 Power Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 6.4 Display andBacklight. . . . . . . . . . . . . . . . . . . . . . . . 27 i 6.5 Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 6.6 INFO-CON Connector . . . . . . . . . . . . . . . . . . . . . . . 29 7 Display Functions. . . . . . . . . . . . . . . . . . . . . . . . . 31 7.1 Blank Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 7.2 Min/Max Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 7.3 Demand Logging . . . . . . . . . . . . . . . . . . . . . . . . . . 33 7.3.1 Demand Log Label and Data Storage . . . . . . . . . . . . . . . . . . . . . 33 7.3.2 Dump Data?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 7.3.3 Clear Log?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 7.4 Auto Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 7.4.1 ClearAutolog? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 7.4.2 Log Rate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 7.4.3 AutologLabel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 7.4.4 AutologgedData Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 7.4.5 Dump Data?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 7.5 Delta(x) Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 7.6 Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 7.7 Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 7.8 Resolution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 7.9 CAL MODE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 7.9.1 MtrDue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 7.9.2 PrbDue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 7.9.3 Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 7.9.4 Passcode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 7.9.5 Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 7.9.6 Probe Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 7.9.7 Prb#. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 7.9.8 PrbType. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 7.9.9 ITS-90. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 7.9.10 IEC751 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 7.9.11 CVD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 7.9.12 YSI-400 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 7.9.13 THERM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 7.9.14 Probe Wires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 7.9.15 PCal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 7.9.16 PDue. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 7.9.17 Digital Filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 7.9.18 MCal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 7.9.19 MDue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 7.9.20 CAL1 and CAL2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 8 Communications Interface. . . . . . . . . . . . . . . . . . . . 47 8.1 RS-232 Connection . . . . . . . . . . . . . . . . . . . . . . . . . 47 8.2 Communication Command List. . . . . . . . . . . . . . . . . . . 48 ii 8.2.1 Primary Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 8.2.2 Calibration Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 9 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 9.1 Required Equipment. . . . . . . . . . . . . . . . . . . . . . . . . 53 9.2 Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . . . 53 10 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 11 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . 57 11.1 An Error Message Is Displayed . . . . . . . . . . . . . . . . . . . 57 11.2 Downloading Autologged Data . . . . . . . . . . . . . . . . . . . 58 11.3 Placement of Infrared Dongle for IR Data Transfer. . . . . . . . . 59 11.4 CE Comments. . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 11.4.1 EMCDirective . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 11.4.1.1 Immunity Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 11.4.1.2 Emission Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 11.4.2 Low Voltage Directive (Safety). . . . . . . . . . . . . . . . . . . . . . . . . 61 iii iv Figures and Tables Table 1 International Electrical Symbols . . . . . . . . . . . . . . . . . . . . . 1 Figure 1 Front View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Figure 2 Top and Side View. . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Figure 3 INFO-CON Connector. . . . . . . . . . . . . . . . . . . . . . . . . . 21 Figure 4 Infrared Dongle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Figure 5 Battery Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Figure 6 12V DC Power Source Polarity . . . . . . . . . . . . . . . . . . . . . 27 Figure 7 Probe Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . 30 Figure 8 Operating Modes Flowchart . . . . . . . . . . . . . . . . . . . . . . . 32 Figure 9 RS-232 Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Figure 10 InfraredDonglePosition. . . . . . . . . . . . . . . . . . . . . . . . . 60 1 Before You Start Symbols Used 1 Before You Start 1.1 Symbols Used Table 1 lists the International Electrical Symbols. Some or all of these symbols may be used on the instrument or in this manual. Table 1 International Electrical Symbols Symbol Description AC (Alternating Current) AC-DC Battery CE Complies with European Union Directives DCDouble Insulated Electric Shock Fuse PE Ground Hot Surface (Burn Hazard) Read the User’s Manual (Important Information) Off On 1 1522 Handheld Thermometer Readout User’s Guide 2 Symbol Description Canadian Standards Association OVERVOLTAGE (Installation) CATEGORY II, Pollution Degree 2 per IEC1010-1 re- fers to the level of Impulse Withstand Voltage protection provided. Equipment of OVERVOLTAGE CATEGORY II is energy-consuming equipment to be supplied from the fixed installation. Examples include household, office, and laboratory appliances. C-TIC Australian EMC Mark The European Waste Electrical and Electronic Equipment (WEEE) Directive (2002/96/EC) mark. 1.2 Safety Information Use this instrument only as specified in this manual. Otherwise, the protection provided by the instrument may be impaired. The following definitions apply to the terms “Warning” and “Caution”. • “WARNING” identifies conditions and actions that may pose hazards to the user. • “CAUTION” identifies conditions and actions that may damage the in- strument being used. 1.2.1 WARNINGS To avoid personal injury, follow these guidelines. • DO NOT use this unit in environments other than those listed in the User’s Guide. • Follow all safety guidelines listed in the User’s Guide. • Calibration equipment should only be used by trained personnel. • This instrument can measure extreme temperatures. Precautions must be taken to prevent personal injury or damage to objects. Probes may be ex- tremely hot or cold. Cautiously handle probes to prevent personal injury. Carefully place probes on a heat/cold resistant surface or rack until they reach room temperature. • The AC adapter can present safety concerns if misused or damaged. To avoid the risk of electric shock or fire, do not use the AC adapter outdoors or in a dusty, dirty, or wet environment. If the cord, case, or plug of the adapter is damaged in any way, discontinue its use immediately and have it replaced. Never disassemble the AC adapter. Use only the AC adapter provided with the instrument or equivalent adapter recommended by the manufacturer of this instrument. 1 Before You Start Safety Information • The AC adapter has circuits with high voltage inside that could present danger of electrical shock or fire if exposed. If the AC adapter is damaged in any way or becomes hot, discontinue its use immediately, disconnect it from any AC supply, and have it replaced. Do not attempt to open, repair, or continue using a damaged or defective AC adapter. • The instrument batteries can present danger if not handled properly. To avoid the risk of exposure to dangerous substances or explosion, immedi- ately remove the batteries and discontinue use if they leak or become damaged. Never allow the batteries to be shorted, heated, punctured, or dropped. If the instrument is physically damaged, immediately remove the batteries to insure that they do not become shorted. While removed from the instrument, store the batteries in a location so that they do not come into contact with metal or fluids that might short circuit the batteries and where they are safe from excessive temperatures. Used batteries must be disposed of properly. Check your local regulations for additional infor- mation. Never dispose of batteries in fire which may result in explosion with the possibility of personal injury or property damage. • DO NOT use this instrument in combination with any probe (RTD or thermistor) to measure the temperature or resistance of any device that is electrically energized. Severe electric shock, personal injury, or death may occur. 1.2.2 CAUTIONS To avoid possible damage to the instrument, follow these guidelines. • If the instrument is dropped, struck, or handled in a way that causes inter- nal or external physical damage, immediately unplug the AC adapter, re- move the batteries, discontinue use, and contact the factory for repair. Do not attempt to disassemble or repair the instrument, batteries, or AC adapter. Refer repairs or replacement components to the manufacturer. • The instrument and thermometer probes are sensitive and can be easily damaged. Always handle these devices with care. DO NOT allow them to be dropped, struck, stressed, or overheated. • DO NOT leave the AC adapter plugged in for more than 24 consecutive hours or the battery life could be degraded. • Probes are fragile devices which can be damaged by mechanical shock, overheating, and absorption of moisture or fluids in the wires or hub. Damage may not be visibly apparent but nevertheless can cause drift, in- stability, and loss of accuracy. Observe the following precautions: • DO NOT allow probes to be dropped, struck, bent, or stressed. • DO NOT overheat probes beyond their recommended temperature range. • DO NOT allow any part of the probe other than the sheath to be im- mersed in fluid. • DO NOT allow the probe hub or wires to be exposed to excessive temper- atures. 3 1522 Handheld Thermometer Readout User’s Guide 4 • Keep the probe wires clean and away from fluids. 1.3 Authorized Service Centers Please contact one of the following authorized Service Centers to coordinate service on your Hart product: Fluke Corporation, Hart Scientific Division 799 E. Utah Valley Drive American Fork, UT 84003-9775 USA Phone: +1.801.763.1600 Telefax: +1.801.763.1010 E-mail: support@hartscientific.com Fluke Nederland B.V. Customer Support Services Science Park Eindhoven 5108 5692 EC Son NETHERLANDS Phone: +31-402-675300 Telefax: +31-402-675321 E-mail: ServiceDesk@fluke.nl Fluke Int'l Corporation Service Center - Instrimpex Room 2301 Sciteck Tower 22 Jianguomenwai Dajie Chao Yang District Beijing 100004, PRC CHINA Phone: +86-10-6-512-3436 Telefax: +86-10-6-512-3437 E-mail: xingye.han@fluke.com.cn 1 Before You Start Authorized Service Centers Fluke South East Asia Pte Ltd. Fluke ASEAN Regional Office Service Center 60 Alexandra Terrace #03-16 The Comtech (Lobby D) 118502 SINGAPORE Phone: +65 6799-5588 Telefax: +65 6799-5588 E-mail: antng@singa.fluke.com When contacting these Service Centers for support, please have the following information available: • Model Number • Serial Number • Voltage • Complete description of the problem 5 2 Introduction 2 Introduction The Hart 1522 is a low-cost, high-accuracy digital thermometer readout de- signed to be used with PRTs and thermistors. The unique combination of fea- tures makes this instrument suitable for a wide variety of applications in industry. Features and capabilities of the 1522 include the following: • Accepts input from platinum resistance thermometers (PRTs) and therm- istors • Works with Hart’s INFO-CON probe connector (which is partially based on U.S. Patent 5,857,777) to automatically recognize the type of sensor and its characteristics • Alerts the operator automatically when the probe calibration or meter cal- ibration expires • Measures with an accuracy of ±0.025°C at 25°C with PRTs and ±0.005°C at 25°C with thermistors • Accepts three- or four-wire sensors to eliminate lead resistance errors • Measures with a fast one-second measurement cycle • Displays maximum, minimum, and delta temperatures • Uses a unique factory-assigned passcode to protect programmed settings • Displays measurements and settings on a high-contrast LCD display • Communicates with other equipment or a computer using an RS-232 se- rial interface • Can be powered from its AC adapter or rechargeable battery • Stores up to 10,000 readings with reading, units, date, time, and label in autologging mode at user selected intervals • Stores up to 100 readings with reading, units, date, time, and label in de- mand logging mode • Contains an infrared interface for fast downloading of logged data • Stores 25 labels (8 characters) for easy recognition of logged data • Stops logging once maximum readings are stored. Memory must be cleared to store additional data • Starts and stops logging both from the front panel and through the RS-232 and infrared interfaces • Allows user to select a label for every reading stored in demand logging mode 7 3 Specifications and Environmental Conditions Specifications 3 Specifications and Environmental Conditions 3.1 Specifications Resistance Range 0Ω to 500 kΩ Resistance Accuracy, PRT, one year† 0Ω to 25Ω: 0.002Ω 25Ω to 400Ω: 0.008% (80 ppm) of reading Resistance Accuracy, thermistor, one year† 0Ωto 2 kΩ: 0.4Ω 2 kΩ to 200 kΩ: 0.02% (200 ppm) of reading 200 kΩ to 500 kΩ: 0.03% (300 ppm) of reading Temperature Range PRT: –200°C to 962°C (–328°F to 1764°F) Thermistor: –50°C to 150°C (–58°F to 302°F) Temperature Accuracy, PRT† –200°C to 100°C: ±0.025°C (±0.045°F) 100°C to 400°C: 0±.05°C (±0.09°F) 400°C to 800°C: ±0.1°C (±0.18°F) 800°C to 962°C: ±0.15°C (±0.27°F) Temperature Accuracy, 2.25 kΩ thermistor† –50 to 25°C: ±0.005°C (±0.009°F) 25°C to 50°C: ±0.01°C (±0.018°F) 50°C to 75°C: ±0.03°C (±0.054°F) 75°C to 100°C: ±0.08°C (±0.144°F) Temperature Accuracy, 10 kΩ thermistor† 0 to 50°C: ±0.005°C (±0.009°F) 50°C to 75°C: ±0.01°C (±0.018°F) 75°C to 100°C: ±0.02°C (±0.036°F) 100°C to 125°C: ±0.05°C (±0.09°F) 125°C to 150°C: ±0.1°C (±0.18°F) Temperature Accuracy, 100 kΩ thermistor† 0 to 50°C: 0.006°C (0.011°F) 50°C to 150°C: 0.009°C (0.016°F) Resistance Resolution 0.001Ω Temperature Resolution 0.001°C, F, K, R Probe IEC-751 or DIN-43760 PRT Callendar-Van Dusen calibrated PRT; nominal 100Ω ITS-90 calibrated 25Ω or 100Ω PRT YSI-400 series or equivalent 2252Ω thermistor Steinhart-Hart thermistor polynomial; nominal R(25°C) 2kΩ to 100kΩ Probe Connector Hart INFO-CON connector Maximum Acceptable Probe Lead Resistance 10Ω Probe Excitation Current PRT: 0.5 mA Thermistor: 5 μA Measurement Period 1 second 9 1522 Handheld Thermometer Readout User’s Guide 10 Digital Filter Exponential with adjustable time constant (1 to 60 seconds) Remote Communications RS-232 serial, infrared Display LCD, 6-digit x 7-segment with 16-character alphanumeric Operating Temperature Range 0 to 40°C (32 to 104°F) absolute 15 to 35°C (59 to 95°F) full accuracy Power 12 VDC (AC adapter included) Rechargeable NiMH batteries (included) Safety OVERVOLTAGE (Installation) CATEGORY II, Pollution Degree 2 per IEC1010-1 refers to the level of Impulse Withstand Voltage protec- tion provided. Equipment of OVERVOLTAGE CATEGORY II is en- ergy-consuming equipment to be supplied from the fixed installation. Examples include household, office, and laboratory appliances. Size 7.75"H x4.2"Wx1.5"D (20 cm H x 11 cm W x 4 cm D) Weight 0.4 kg (1.0 lb.) †Accuracy specifications apply from 15 to 35°C. Accuracy specifications over the entire absolute operating range are 1.5 times the stated values. Temperature accuracy does not include probe uncertainty or probe characterization errors. The practical measurement range may be limited by the sensor. 3.2 Environmental Conditions Although the instrument has been designed for optimum durability and trou- ble-free operation, it must be handled with care. The instrument should not be operated in an excessively dusty, dirty, or wet environment. Maintenance and cleaning recommendations can be found in the Maintenance section of this manual. For full accuracy, operate the instrument in ambient temperatures between 15-35°C (59-95°F). Do not operate the instrument in an environment colder than 5°C (41°F) or warmer than 50°C (122°F). The instrument operates safely under the following conditions: • Operating temperature range: absolute 5–50°C (41–122°F); full accuracy15-35°C (59-95°F) • Ambient relative humidity: 15-50% • Pressure: 75kPa-106kPa • Vibration should be minimized • Altitude less than 2,000 meters • Indoor use only 3.3 Warranty Fluke Corporation, Hart Scientific Division (Hart) warrants this product to be free from defects in material and workmanship under normal use and service for a period as stated in our current product catalog from the date of shipment. 3 Specifications and Environmental Conditions Warranty This warranty extends only to the original purchaser and shall not apply to any product which, in Hart’s sole opinion, has been subject to misuse, alteration, abuse or abnormal conditions of operation or handling. Software is warranted to operate in accordance with its programmed instruc- tions on appropriate Hart products. It is not warranted to be error free. Hart’s obligation under this warranty is limited to repair or replacement of a product which is returned to Hart within the warranty period and is determined, upon examination by Hart, to be defective. If Hart determines that the defect or malfunction has been caused by misuse, alteration, abuse or abnormal condi- tions or operation or handling, Hart will repair the product and bill the pur- chaser for the reasonable cost of repair. To exercise this warranty, the purchaser must forward the product after calling or writing an Authorized Service Center (see Section 1.3). The Service Center assumes NO risk for in-transit damage. THE FOREGOING WARRANTY IS PURCHASER’S SOLE AND EXCLU- SIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES, EX- PRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OR MERCHANTABILITY, OR FITNESS FOR ANY PARTICULAR PURPOSE OR USE. HART SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAM- AGES OR LOSS WHETHER IN CONTRACT, TORT, OR OTHERWISE. 11 4 Quick Start Unpacking 4 Quick Start This section briefly explains the basics of setting up and operating your ther- mometer readout. 4.1 Unpacking Carefully unpack the 1522 and accessories and inspect them to make sure all components are present and in satisfactory condition. Verify that the following items are present: • 1522 Thermometer Readout • AC Adapter (clamp-on ferrite installed) • Serial Cable • User's Guide • Report of Calibration • Calibration Label • Passcode Notice • INFO-CON Connector • Clamp-on ferrite with installation instructions for probe • Probe (optional—must be purchased separately) If all items are not present, contact an Authorized Service Center (see Section 1.3). 4.2 Use Proper Care with the 1522 and Accessories First and most important is to understand the safety issues related to the 1522 and its accessories. Be aware that potential hazards exist due to high tempera- tures, high voltages, and battery chemicals. Carefully read Section . CAUTION: The 1522 and any thermometer probes are sensitive instru- ments that can be easily damaged. Always handle these devices with care. DO NOT allow them to be dropped, struck, stressed, or overheated. 4.3 Learn About the Features and Components Familiarize yourself with the features and accessories of the 1522 by reading Section 5. 13 1522 Handheld Thermometer Readout User’s Guide 14 4.4 Connect the Probe The PRT or thermistor probe connects to the top of the 1522 using Hart’s unique INFO-CON probe connector. The probe connector is inserted into the top of the instrument with the ridged to the back and fits snugly and locked into place when it is fully inserted. The INFO-CON probe connector includes a memory device that stores the unique characteristics of the probe, allowing the 1522 to measure tempera- ture accurately. If your probe was purchased from Hart for use with the 1522, it should already have the connector attached and properly programmed. You can use your own probe with the 1522, but you must attach it to an INFO-CON connector. See Section 6.6 for more information on the INFO-CON connector and instructions on properly attaching the probe to the connector. 4.5 Connect the Power Source The 1522 draws power either from a DC power supply (the included AC adapter) connected to the DC input or from the internal rechargeable battery pack. To use the AC adapter, plug it into a wall outlet of the appropriate voltage and insert the DC plug into the DC power input of the 1522 (see Figure 2.) The battery pack must first be fully charged prior to using the AC adapter (see Sec- tion 6.1). 4.6 Switch the Power On Power is switched on and off with the power button located below and to the left of the display. To switch the power on, hold the power button down for at least three seconds and release. (To switch power off, momentarily press the power button again.) The instrument takes a few seconds to power up, initialize itself, and begin normal operation. During initialization the lower line of the display shows the manufacturer, model number, firmware version, and the state of battery charge or the message “External power” if the AC adapter is at- tached. If the thermometer readout or probe calibration have expired, the mes- sages “Prb cal expired” or “Mtr cal expired” are displayed. The 1522 reads important information about the attached probe from the INFO-CON connector that is used to calculate temperature. The 1522 then performs a memory check of critical parameters, such as the cal- ibration parameters CAL1 and CAL2. During this check the lower line of the display reads “Checking Memory”. If a “Memory Error” or “Memory Recover” message is displayed, see Section 12.1, Troubleshooting, for additional infor- mation and instructions. 4.7 Measure Temperature After initialization the upper line of the display begins to show temperature measurements sensed by the probe. Place the probe into the object where you 4 Quick Start Measure Temperature want to measure the temperature. DO NOT force the probe or otherwise allow it to be bent, stressed, or overheated. It can be easily damaged if misused. For further suggestions on handling the probe and using the 1522 and probe to measure temperature accurately, see Section 6.5. For information on the various modes of operation of the 1522 see Section 7. 15 5 Parts and Controls Front View 5 Parts and Controls The functions of the various features of the 1522 are described below. 5.1 Front View The front of the 1522 features the LCD display and control buttons. Figure 1 Front View 17 1522 Handheld Thermometer Readout User’s Guide 18 Display-The display shows the current temperature (or resistance) measure- ment on the large numeric upper portion of the display. It can also show a vari- ety of information on the smaller alphanumeric lower portion such as minimum, maximum, delta(x), and other instrument settings. Power and Backlight button-This button turns the instrument on or off. If the power is on, pressing the button for three seconds toggles the backlight on or off (see Section 6.3). Note: using the backlight drains the battery more quickly. ENT (enter) button-This button is pressed to accept changes to a setting and, in some modes, to store the most recent measurement. CLR (clear) button-This button cancels changes to a setting and in the MIN/MAX mode resets the minimum and maximum to the last measurement. Up and Down buttons-These buttons are used to change values and settings. MODE button-This button advances through operating modes and program- ming functions (see Section 7).

5 Parts and Controls Top and Side View 5.2 Top and Side View Top View Probe Connector Side View Serial Port Infrared Window

DC Power Input Stand Figure 2 Top and Side View The top and side of the 1522 feature the probe connector, DC power input, se- rial port, and infrared window. Probe Connector - At the top of the thermometer readout is the opening where the probe connector is inserted. The probe must be connected using an INFO-CON probe connector to measure temperature (see Section 6.6). DC Power Input - The AC adapter plugs into the DC power input to recharge the battery and to power the instrument while the battery is being charged (see Section 6.2). Serial Port - The RS-232 serial port provides a means of connecting the 1522 to a computer or a printer using the included serial cable (see Section 8). The baud rate is fixed at 2400 baud, the linefeed is fixed to ON (all carriage returns are followed by a linefeed, ASCII decimal 10), and the duplex is fixed to Half disabling the echo. Infrared Window - The infrared window has no functionality. 19 1522 Handheld Thermometer Readout User’s Guide 20 5.3 Back View See Figure 5 on page 25. Stand - The stand at the back of the 1522 can be flipped down to prop up the instrument for better viewing. Battery Compartment - Behind the stand is the compartment that contains the battery pack. The battery pack can be accessed if necessary by opening the bat- tery cover with a small Philips screwdriver (see Section 6.1). Serial Number Label - Also behind the stand is the serial number label that uniquely identifies the instrument. 5.4 Internal Features The significant components inside the 1522 are described here. Battery - The 1522 has an internal rechargeable battery pack that can be re- charged by the AC adapter without removing the battery. It can be used and re- charged many times. If necessary, it can be easily removed and replaced (see Section 6.1). Micro-controller - The 1522 uses a micro-controller to control all its func- tions. The micro-controller manages the measurement process, retrieves mea- surement data from the analog-to-digital converter (ADC), places measurements and other information on the display, senses button actions, reads battery status information from the power control circuit, and handles communications through the serial port. Power Control Circuit - The power control circuit manages the electrical power that drives all the circuits. It handles switching between the two sources of power (DC input and battery pack), regulates voltages, monitors the state of battery charge, and manages battery charging. Analog-to-Digital Converter and Measurement Circuit - The ADC takes an analog signal produced by the probe and converts it to a digital value that can be read by the micro-controller. The ADC used in the 1522 was selected for its excellent resolution, linearity, and stability. The measurement circuit built around the ADC was carefully designed for accuracy and stability to match the ADC. The measurement circuit allows complete rejection of probe wire resis- tance effects that would otherwise seriously limit accuracy. Offsets from sources such as thermoelectric EMF are also completely rejected. This is done using a current reversal technique with the probe current alternating at a rate of one cycle per second. Self-heating is minimized by using low sensing currents. For PRTs the current is only 0.5 mA. For thermistors the current is only 0.005 mA. 5 Parts and Controls Accessories 5.5 Accessories The 1522's accessories and their features are described here. AC Adapter - The AC adapter recharges the internal battery pack and may also be used to supply power to operate the 1522 while the battery is being charged (see Section 6.2). Serial Cable - The serial cable is used to connect a computer or a printer to the 1522 through its serial port (see Section 8). INFO-CON Connector - Hart’s unique INFO-CON connector allows the probe to be easily attached and detached. It contains a memory device that stores information about the probe and automatically transfers this data to the 1522 when the probe is attached. This ensures that the settings used to measure and calculate temperature always match the probe being used (see Section 6.6). INFO-CON Figure 3 INFO-CON Connector Probe - The probe acts as the temperature sensor. Its resistance depends on its temperature. The 1522 precisely measures the resistance of the probe and uses the coefficients stored in the INFO-CON connector to calculate its temperature (see Section 6.5). The following probe options are available. Ordering Information Model Type Range Size Cal Uncertainty and Repeatability† Typical Drift† (1 year) 5626 Pt-100 Ohm, 4-wire –200 to 660°C 1/4” x 12” or 15” (6.35 x 305 or 381 mm) ±0.015°C ±0.03°C 5628 Pt-25 Ohm, 4-wire –200 to 660°C 1/4” x 12” or 15” (6.35 x 305 or 381 mm) ±0.015°C ±0.03°C 5614 Pt-100 Ohm, 4-wire –200 to 450°C 1/4” x 12” (6.35 x 305 mm) ±0.025°C ±0.01°C 21 1522 Handheld Thermometer Readout User’s Guide Ordering Information Model Type Range Size 22 Cal Uncertainty and Repeatability† Typical Drift† (1 year) 5613 Pt-100 Ohm, 4-wire –200 to 300°C 3/16” x 6” (4.76 x 152 mm) ±0.025°C ±0.01°C 5612 Pt-100 Ohm, 4-wire –200 to 450°C 3/16” x 9” (4.76 x 229 mm) ±0.025°C ±0.01°C 5627–6 Pt-100 Ohm, 4-wire –200 to 300°C 3/16” x 6” (4.76 x 152 mm) ±0.035°C ±0.13°C 5627–9 Pt-100 Ohm, 4-wire –200 to 450°C 3/16” x 9” (4.76 x 229 mm) ±0.035°C ±0.13°C 5627–12 Pt-100 Ohm, 4-wire –200 to 450°C 1/4” x 12” (6.35 x 305 mm) ±0.035°C ±0.13°C 5610-6 10K-ohm Thermistor 0 to 110°C 1/8” x 6” (3.2 x 152 mm) ±0.02°C ±0.01°C 5610-9 10K-ohm Thermistor 0 to 110°C 1/8” x 9” (3.2 x 229 mm) ±0.02°C ±0.01°C 5611 10K-ohm Thermistor 0 to 110°C 0.07” x 0.55” (1.8 x 14 mm) ±0.02°C ±0.01°C 5611T 10K-ohm Thermistor 0 to 110°C 0.11” x 1.1” (2.8 x 28 mm) ±0.02°C ±0.01°C 5640 4K-ohm Thermistor 0 to 60°C 1/4” x 9” (6.35 x 229 mm) ±0.0015°C ±0.005°C 5622-05 Pt-100 Ohm, 4-wire –200 to 350°C 0.5 x 100 mm ±0.035°C ±0.15°C 5622-10 Pt-100 Ohm, 4-wire –200 to 350°C 1.0 x 100 mm ±0.035°C ±0.15°C 5622-16 Pt-100 Ohm, 4-wire –200 to 350°C 1.6 x 100 mm ±0.035°C ±0.15°C 5622-32 Pt-100 Ohm, 4-wire –200 to 350°C 3.2 x 100 mm ±0.035°C ±0.15°C 5618-6 Pt-100 Ohm, 4-wire –200 to 500°C 1/8" x 9" (3.2 x 152 mm) ±0.035°C ±0.01°C 5618-9 Pt-100 Ohm, 4-wire –200 to 500°C 1/8" x 9" (3.2 x 229 mm) ±0.035°C ±0.01°C 5618-12 Pt-100 Ohm, 4-wire –200 to 500°C 1/8" x 9" (3.2 x 305 mm) ±0.035°C ±0.01°C †Probe performance specifications may vary based on use, handling, and calibration. Call an Authorized Service Center (see Section 1.3) for more complete specifications.IR Dongle - The Model 2374 IR dongle (Figure 4) and the Model 9934 LogWare or 9935 LogWare II software allow logged data to be downloaded to a 5 Parts and Controls Accessories computer and written to a file quickly. These items must be purchased sepa- rately. Figure 4 Infrared Dongle LogWare Software - The LogWare software are data acquisition software packages that can be used with your thermometer to collect and graph data. The software also allows the user to download data logged from the instrument's memory to a computer and access to some of the instrument's features. INFO-CON Download Adapter - The Model 2372 INFO-CON download adapter and Model 9972 INFO-CON Download Adapter software can be used to program an INFO-CON connector with new probe calibration coefficients without using the thermometer readout. The Model 2372 INFO-CON Down- load Adapter has a 9-pin serial cable that connects to a serial (COM) port on a PC. The INFO-CON Download Adapter software can then be used to read, edit, and write changes to the INFO-CON connector. Carrying Cases - There are two types of cases available for your 1522 ther- mometer readout. The Model 9318 case is a hard case for carrying the ther- mometer readout and a 12" probe. The Model 9321 case is a soft case with a belt clip and a probe slot. 23 6 General Operation Battery 6 General Operation This section explains the details of the operation of the 1522 with its compo- nents and accessories. 6.1 Battery The 1522 has a built-in nickel-metal-hydride battery pack that can power the instrument for about 18 hours before needing to be recharged. The battery dis- charges much more quickly if the display backlight is used. The battery charge remaining or the message “External Power” is shown on the display when the instrument is switched on. The battery percentages are approximate and should be used as general guidelines when determining the length of charge remaining. The battery is recharged in situ (while in place) using the AC adapter. Plug the AC adapter into an AC socket of the appropriate voltage as noted on the AC adapter (normally 115V, optionally 230V). Connect the DC plug of the adapter into the DC input of the 1522 located on the right side. The battery charges as necessary whether or not the instrument is switched on. The power control cir- cuit inside the instrument manages battery charging and stops charging the bat-Figure 5 Battery Installation 25 1522 Handheld Thermometer Readout User’s Guide 26 tery automatically when it’s fully charged. It normally takes about four hours to fully charge the battery. The instrument can be operated while the battery is be- ing charged. CAUTION: DO NOT leave the AC adapter plugged in for more than 24 consecutive hours or, the battery life could be degraded. The battery pack can be used for a minimum of 500 charge-discharge cycles before needing to be replaced. Replacement battery packs are available from the manufacturer. The battery pack can be easily removed and replaced in the field by following this procedure: 1. Power the 1522 off and unplug the AC adapter. 2. With the 1522 facing down, lift the stand to expose the battery cover (see Figure 5). Remove the battery cover screw with a small Philip’s screw- driver. Remove the battery cover to access the battery pack. 3. Remove the battery pack by gently disconnecting the battery plug from the connector. Note the orientation of the battery plug on the connector. 4. Attach the polarized plug of the new battery pack onto the connector in the same direction as before (see Figure 5 on page 25). Place the battery pack in the battery compartment. 5. Replace the battery cover and screw. 6. Plug in the AC adapter and charge the new battery for a minimum of four hours for its initial charge. WARNING: Used batteries must be disposed of properly. Check your lo- cal regulations for additional information. Never dispose of batteries in fire as this may result in explosion with the possibility of personal injury or property damage. 6.2 DC Power Source The DC power source provides power to charge the battery. It can also be used to power the 1522 while the battery is being charged. The AC adapter provided with the 1522 is intended to be used for these purposes. Use only the AC 6 General Operation Power Button adapter supplied by Hart Scientific. The DC power source plugs into the DC power input on the right side of the 1522. – + Figure 6 12V DC Power Source Polarity WARNING: The AC adapter contains high voltage circuits that could present danger of electric shock or fire if exposed. If the AC adapter is damaged in any way or becomes hot, discontinue its use immediately, dis- connect it from any AC supply, and have it replaced. Do not attempt to open, repair, or continue using a damaged or defective AC adapter. 6.3 Power Button The power button controls power to the instrument and operates the backlight. The following table summarizes the power button functions. Function Action Power on Press and the power button for at least three seconds Power off Press the power button momentarily (1/2 second or less) while the power is on Backlight on Press and hold the power button for three seconds or more while the power is on and the backlight is off Backlight off Press and hold the power button for three seconds or more while the backlight is on 6.4 Display and Backlight The display shows measurement data and other relevant information depending on the selected mode. The upper part of the display continually shows the most recent measurement with large digit format. A new measurement is produced and displayed every 27 1522 Handheld Thermometer Readout User’s Guide 28 second. The display unit associated with the measurement is shown in smaller type to the right of the measurement. The possible display units are degrees Celsius (C), resistance in ohms (Ω), degrees Fahrenheit (F), Kelvin (K), and degrees Rankine (R). The display units can be easily changed accessing the Units mode (see Section 7.6). The lower part of the display has various functions depending on the selected mode. It has smaller alphanumeric characters. It can be used to display mini- mum and maximum measurements, delta(x) measurements, or measurements stored in memory. It is also used to view and set various operating parameters. The mode is easily changed using the MODE button. (See details on the vari- ous modes beginning with Section 7.) The display has a backlight that can be switched on for better viewing in dim light. The backlight is switched on and off by pressing and holding the power button for three seconds (see Section 6.3 above). Note: The battery discharges more quickly when the backlight is used. 6.5 Probe The probe is used to sense temperature and attaches to the 1522 using a Hart INFO-CON probe connector that plugs into the top of the instrument. The probe connector must be properly programmed with the correct charac- teristics of the probe for measurements to be accurate (see Section 6.6). The 1522 can be used with various types of PRT and thermistor probes: • ITS-90 calibrated 25Ω or 100Ω PRT • IEC-751 or DIN-43760 PRT (RTD) • Callendar-Van Dusen calibrated 100Ω PRT • YSI-400 series or equivalent 2252Ω thermistor • Steinhart-Hart thermistor polynomial; nominal R(25°C) 2kΩ to 100kΩ See Section 7.9.8 for details on the various probe types and their programming. The 1522 cannot be used with thermocouples. The 1522 can be used with probes having two, three, or four wires. Three-wire probes allow partial compensation for wire resistance. The 1522 measures three-wire probes using the following sequence. It measures the sensor resis- tance, including the lead resistance in C2. The 1522 then directly measures the resistance in the C1 lead of the sensor and subtracts the measured C1 lead resis- tance from the measured sensor resistance (including the C2 lead resistance) to obtain the sensor resistance used to calculate temperature. Note: This sequence assumes that the lead resistance of C1 and C2 are equal. If C1 and C2 each have a different resistance value, there will be an error in the calculated sensor resistance equal to this difference. Four-wire probes allow complete rejection of wire resistance and should be used when the best accuracy is desired. The 1522 wire setting must be set to match the actual number of wires of the probe (see Section 7.9.14). 6 General Operation INFO-CON Connector Temperature is generally sensed at the tip of the probe. To get an accurate tem- perature measurement the probe sheath should be well immersed, with ade- quate depth and fit, into the medium to be measured. CAUTION: Probes are fragile devices that can be easily damaged by me- chanical shock, overheating, and absorption of moisture or fluids in the wires or hub. Damage may not be visibly apparent but nevertheless can cause drift, instability, and loss of accuracy. Observe the following pre- cautions: Do not allow probes to be dropped, struck, bent, or stressed. Do not overheat probes beyond their recommended temperature range. Do not allow any part of the probe other than the sheath to be immersed in fluid. Do not allow the probe hub or wires to be exposed to excessive temperatures. Keep the probe wires clean and away from fluids. 6.6 INFO-CON Connector The probe connects to the top of the 1522 using a Hart INFO-CON connector (see Figure 3 on page 21). The probe connector fits snugly and locks into place when it is fully inserted. The connector includes a memory device that stores the unique characteristics of the probe, allowing the instrument to measure tem- perature accurately. Generally, the probe is purchased with the connector at- tached and programmed by the factory. Connectors can be purchased separately and installed onto probes by the user. The INFO-CON can be programmed di- rectly from the 1522 or from a PC with the optional Model 2372 accessory and 9972 software. If it is necessary to install the INFO-CON onto a probe in the field, follow the diagram below for connecting the wires of the probe to the connector terminals. CAUTION: Before opening the INFO-CON case, be sure to be grounded with an ESD strap to avoid damaging the memory chip. For four-wire probes, one pair of wires attaches to terminals C1 and P1 and the other pair attaches to terminals C2 and P2. (C1 and C2 source current and P1 and P2 sense the potential.) If a shield wire is present, it should be connected to the GND terminal (see Figure 7). A two-wire or three-wire probe can also be used with the instrument. The two-wire probe is connected by one wire to the C1 and P1 shorted terminals and the other wire to the C2 and P2 shorted terminals. Recognize that accuracy may be significantly degraded using a two-wire connection because of wire re- sistance. A three-wire probe is connected by attaching the common wires to the29 1522 Handheld Thermometer Readout User’s Guide 30 C1 and P1 terminals and the other single wire to the C2 and P2 terminals (which are shorted together). C1 GNDC2 GNDGNDP1 P2 C1 P1 P2 C2 C1 P1 P2 C2 Hart Scientific Hart Scientific J1 J2 J1 J2 J1 J2 Short Hart Scientific Short Four-wire Connection Three-wire Connection Two-wire Connection Figure 7 Probe Wiring Diagrams 7 Display Functions 7 Display Functions The insturment operates in any of several modes which determine what infor- mation is visible in the lower alphanumeric portion of the display. The MODE button sequences through the menu functions. This button can be pressed re- peatedly until a desired mode is set. The various modes are listed below in the order they appear. Also refer to Figure 8. Blank - No data shown Min/Max - Display minimum and maximum measurements (CLR to re- set) Demand Logging - Store readings (up to 100) on demand in the memory registers Auto Logging - Store readings (up to 10,000) automatically in memory at user selected intervals Delta(x) - Display delta from reference measurement (ENT to set refer- ence) Units: C/Ω/F/K/R - Set the units of measurement Rate: 00000 - Set the period for serial transmission Resol: XXX.XXX - Set the display resolution CAL MODE - Set probe and instrument calibration parameters (MODE button must be held for three seconds) Note: Units, Rate, and Resol are temporary modes. The instrument returns to Blank mode if left in any of these modes when the power is cycled. 31 1522 Handheld Thermometer Readout User’s Guide 32 Each of these operating modes is described in the sections that follow. Blank Mode MODE button Min/Max Mode Delta(x) Mode MODE button MODE button Demand Logging Set Units MODE button MODE button Auto Logging Set Rate MODE button MODE button Set Resolution MODE button any mode MODE button (3 seconds) Cal Mode Figure 8 Operating Modes Flowchart 7.1 Blank Mode This mode is identified by “Blank” that temporarily appears on the display. 7 Display Functions Min/Max Mode In this mode nothing appears on the alphanumeric portion of the display. Use this mode if you are only interested in the latest measurements and want to sim- plify the appearance of the display. The message “Prb cal expired”, “Mtr cal expired”, “Recharge Needed”, or “Probe is locked” may be displayed. 7.2 Min/Max Mode This mode is identified by “Min/Max” that temporarily appears on the display. In this mode the maximum and minimum measurements taken since the last time the function was cleared appears on the display. The minimum appears on the left and the maximum appears on the right. The resolution of the displayed values match the current setting of the thermometer as set in the Resolution mode (see Section 7.8). Pressing the CLR button at anytime while in this mode clears the minimum and maximum values setting them to the last measurement. Both the minimum and maximum are reset to 0°C (32°F) when the instrument is powered up. Refer to Section 7.6 concerning how changing units affects Min/Max. The message “Prb cal expired”, “Mtr cal expired”, “Recharge Needed”, or “Probe is locked” may be displayed. 7.3 Demand Logging This mode is identified by "Demand Logging" which temporarily appears on the screen. In this mode up to 100 temperature readings with units, date, time, and label can be stored as required. This mode also allows all on-demand data points to be viewed. The logged values can be downloaded to a PC using the serial port. 7.3.1 Demand Log Label and Data Storage This function allows data to be logged on-demand and also allows data to be viewed. The message "Press ENT to log" appears on the screen. Press the ENT button to store a label with the logged value and to log the current reading into the on-demand memory. Press the Up or Down button to scroll through the pre- viously stored values. Press the CLR button to cancel storing the reading and to advance to the next function. Continue pressing the ENT button to log additional readings. The labels should be pre-loaded into the instrument before performing on-demand logging. If no label is chosen the default label is applied which is the number (between 1 and 100) of the reading. After choosing a label, the label and the reading are dis- played on the second line of the display. The on-demand readings can then be scrolled through using the Up and Down buttons. 33 1522 Handheld Thermometer Readout User’s Guide 34 The labels can be pre-loaded using the Windows® HyperTerminal or other se- rial communications program and the command LBnn[=nnnnnnnn] as de- scribed in Section 8.2.1. The labels can also be pre-loaded using the serial port or the 2374 IR dongle with the 9934 LogWare or 9935 LogWare II software available by calling an Authorized Service Center (see Section 1.3 on page 4). 7.3.2 Dump Data? Press the CLR button anytime while in Demand Log Mode to enter this func- tion. This function allows the user to download the stored values using the se- rial port or print the data to a serial printer. To download using the serial port, the 1522 must be connected to a computer using the serial cable sent with the instrument at the time of purchase. Windows® HyperTerminal or other serial communications program must be running. Set HyperTerminal or other serial communications program to use the correct COM port and to operate at 2400 baud, 8 data bits, 1 stop bit, no parity, and no flow control. Once the communi- cations program is running and configured correctly, press the CLR button on the 1522 until the second line of the display reads, “Dump Data? No”. Select “Yes” using the Up or the Down buttons and then press the ENT button. The demand logged data begins displaying in the terminal window and the second line displays “Downloading data”. The instrument advances to the next function when all values have been down- loaded. Pressing the CLR button before or during downloading causes the download to stop and advances to the next function. To exit the Demand Log Mode, press the MODE button. The demand logged data can also be downloaded using the 2374 IR dongle with the 9934 LogWare or 9935 LogWare II software. The user must purchase the IR dongle and the software from Hart Scientific. Using this software, the demand data can be downloaded into a file in ASCII format. The LogWare software also provides a utility to view and change logging labels. 7.3.3 Clear Log? This function clears the on-demand memory. After 100 readings have been stored in the on-demand memory the 1522 does not allow any more readings to be logged until the on-demand memory is cleared. Press the Up and Down un- til "Yes" appears and then press the ENT button to clear the on-demand mem- ory. Pressing the CLR button at anytime advances to the next function without clearing the memory. 7.4 Auto Logging This mode allows data logging to occur automatically at user selected intervals. Up to 10,000 temperature readings can be stored into memory with units, time, date, and label. Multiple log sessions are appended to the memory until the memory is full. The log sessions are grouped by the pre-loaded labels. 7 Display Functions Auto Logging 7.4.1 Clear Autolog? This function clears the memory of all autologged data. Once the 1522 has logged 10,000 readings, further automatic logging is prevented until the mem- ory has been cleared. Pressing the CLR button cancels the “Clr Autolog?” function and advances to the next function. Pressing the ENT button also ad- vances to the next function. 7.4.2 Log Rate This function configures the rate at which data is stored into the memory of the 1522. The following rates are available: 1, 5, 10, 15, 30, or 60 seconds, 2, 5, 10, 15, 30 or 60 minutes. Scroll through the rates using the Up or Down buttons until the desired rate is shown and then press the ENT button to select the rate. The 1522 advances to the next function. Pressing the CLR button at any time also advances to the next function. 7.4.3 Autolog Label A label is stored with each logged reading. Up to 25 labels should be pre-loaded into the unit through the serial port or the infrared dongle prior to autologging. These labels can then be used to differentiate separate autologging sessions. The same label is applied to every data point once autologging is initi- ated. To change this label, autologging must be stopped and a new label se- lected. When selecting labels, press the ENT button to store the displayed label or press the CLR button to revert to the previously selected label. The labels can be pre-loaded using Windows® HyperTerminal or other serial communications program and the command LBnn=[nnnnnnnn] as described in Section 8.2.1. The labels can also be pre-loaded using the serial port or the 2374 IR dongle with the 9934 LogWare or 9935 LogWare II software available by calling an Authorized Service Center (see Section 1.3 on page 4). 7.4.4 Autologged Data Storage This function stores values to the memory of the unit for future download. Each reading is stored with units, date, time and label. Up to 10,000 readings can be stored in memory. The message "ENT to start log" appears on the 1522 display. Press the ENT button to begin autologging. Press the CLR button to cancel and advance to the next function. After pressing the ENT button the 1522 begins to log data automatically at the rate specified in the Log Rate (see Section 7.4.2) and with the label chosen in Autolog Label (see Section 7.4.3). The 1522 display alternates between the message "ENT to stop log" and "Logging NN% Full" where NN is a number between 0 and 100 and shows the percentage of memory that contains autologged data. When data is being logged, all buttons are disabled except for the ENT button. 35 1522 Handheld Thermometer Readout User’s Guide 36 Press the ENT button to stop autologging and to advance to the next function. 7.4.5 Dump Data? This function allows the user to download the autologged data using the serial port or print the downloaded dats to a serial printer. To download using the se- rial port, see Section 8 of this guide before selecting “Yes” when prompted by Dump Data. The autologged data can also be downloaded using the 2374 IR dongle with the 9934 LogWare or 9935 LogWare II software. The user must purchase the IR dongle and the software from your Hart Scientific supplier. Using this software, the autologged data can be downloaded in binary or ASCII format into a single ASCII text file or multiple ASCII text files based on the labels. The approxi- mate download times are as specified in the following table: Download Mode Download Time IR Binary 90 seconds† IR ASCII 22 minutes† Serial 22 minutes† †Times apply for 10,000 readings The LogWare software also provides a utility to view and change logging labels. 7.5 Delta(x) Mode This mode is identified by “Delta(x)” that temporarily appears on the display. In this mode the delta between the measurement and a previously stored refer- ence value appears on the right side of the display. The reference value appears on the left. The resolution of the reference value may be changed using the Resolution mode (see Section 7.8) if necessary. The ENT button stores the present measurement as the reference value. Refer to Section 7.6 concerning how changing units affects Delta(x). The message “Prb cal expired”, “Mtr cal expired”, “Recharge Needed”, or “Probe is locked” may be displayed. 7.6 Units This mode is identified by “Units: C/Ω/F/K/R” that appears on the display. This mode allows you to select the unit of measurement: C for degrees Celsius, Ω for resistance in ohms, F for degrees Fahrenheit, K for Kelvin, and R for Rankine. The Up and Down buttons are used to select one of the displayed units. The underline cursor indicates which of the units is selected. The ENT 7 Display Functions Rate button stores the selection. If the MODE button or CLR button is pressed with- out pressing ENT the unit remains unchanged. Once the unit is selected, subse- quent measurements will appear in that unit. After the Min/Max and Delta(x) modes are initiated, their values are automatically converted when changing units between °C, K, °F, or R. Changing units from Ω to any temperature unit or visa versa, reinitializes the Min/Max and Delta(x) modes. Any previously Min/Max and Delta(x) values are lost. Note: When measuring in units of ohms, make sure that the appropriate probe type has been selected in the Cal Mode menu. For example, to measure a resis- tor between 0 and 400 ohms, set the units to ohms and select the appropriate probe type such as "CVD". To measure a resistor between 400 and 500K ohms, set the units to ohms and select the appropriate probe type such as "THERM". 7.7 Rate This mode is identified by “Rate: 00000" that appears on the display. This mode allows you to set the samples that are transmitted from the serial port. The sample for a 2-wire and a 4-wire probe is approximately one second and for a 3-wire probe is approximately two seconds. For example, if the rate is set to 2, every other sample is sent to the serial interface. A value of 0 disables transmission. The Up and Down buttons are used to increase or decrease the value for the underlined digit. The ENT button moves to the next digit. If the ENT button is pushed when the last digit is underlined, the setting is stored. If the MODE button or CLR button is pressed, the value remains unchanged. Once the value is set measurements will be transmitted from the serial port at the given interval. 7.8 Resolution This mode is identified by “Resol: XXX.XXX” that appears on the display. This mode allows you to set the resolution of measurements to one, two, or three digits after the decimal point. The Up and Down buttons are used to in- crease or decrease the resolution setting. The ENT button stores the setting. If the MODE button or CLR button is pressed, the setting remains unchanged. Once the resolution is set, measurements are displayed and transmitted from the serial port at the given resolution, if possible. The resolution may be re- duced if necessary for large values of temperature or resistance. 7.9 CAL MODE The calibration menu contains functions for setting probe and instrument cali- bration parameters. Press and hold the MODE button for three seconds to enter the calibration menu. "CAL MODE" appears on the display. Press the ENT button to advance. 37 1522 Handheld Thermometer Readout User’s Guide 38 When editing any parameter, be sure to press the ENT button through the entire line of alphanumeric characters to ensure that the edits are stored. Pressing any button other than the ENT button advances to the next function without storing the new value. If a probe parameter is edited, the new parameter value is uploaded into the INFO-CON probe connector when the CAL Mode is exited by pressing the MODE button or after scrolling through the menu and leaving the PDue pa- rameter (see Section 7.9.16). The message "Uploading params" is displayed. After the parameters have been uploaded into the INFO-CON probe connector, the meter advances to the next menu item. Always check to ensure that the pa- rameters have been written to the INFO-CON connector by disconnecting the probe or by turning the instrument off and on and then rechecking the parameters. The calibration menu is entered by pressing and holding the MODE button for three seconds. “CAL MODE” appears on the display. Press the ENT button to advance. Press the MODE button while in the calibration menu to exit and to advance to the display mode that follows the display mode that was active be- fore the CAL Mode was entered. The functions contained in the CAL Mode are listed below in the order they ap- pear. In any of the functions, the ENT button stores the displayed value or se- lection and advances to the next function. The CLR button can be used to cancel changes to a value or selection and to skip to the next function. Use the ENT button to move from Mtr Due to Prb Due and then to Time. Use the CLR button to quickly advance through the remaining functions. Many of the functions are in the passcode protected part of the CAL Mode. You must enter the correct passcode to access those functions (see Section 7.9.4). Mtr Due - View the date the instrument is due for calibration Prb Due - View the date the probe is due for calibration Time - View and set the real-time clock time-of-day Passcode - Enter the passcode to advance to the protected functions Date - View and set the real-time clock date Probe Lock - Lock or unlock operation of the unit with the current probe only Prb # - Set the probe serial number Prb Type - Select the probe type and temperature calculation R(.01) [ITS-90 only] - Sets the R(273.16K) probe coefficient a [ITS-90 only] - Set the a5, a6, a7, a8, a9, a10, or a11 probe coefficient b [ITS-90 only] - Set the b5, b6, b7, b8, or b9 probe coefficient c [ITS-90 only] - Set the c6, or c7 probe coefficient d [ITS-90 only] - Set the d probe coefficient a4 [ITS-90 only] - Set the a4 or a5 probe coefficient 7 Display Functions CAL MODE b4 [ITS-90 only] - Set the b4 or b5 probe coefficient R(0) [CVD only] - Set the R0 probe coefficient Alpha [CVD only] - Set the alpha probe coefficient Delta [CVD only] - Set the delta probe coefficient Beta [CVD only] - Set the beta probe coefficient b0 [Therm only] - Set the b0 probe coefficient b1 [Therm only] - Set the b1 probe coefficient b2 [Therm only] - Set the b2 probe coefficient b3 [Therm only] - Set the b3 probe coefficient Probe Wires - Set the number of wires of the probe PCal - Set the probe calibration date PDue - Set the probe calibration due date Filter - Set the digital filter time constant MCal - Set the instrument calibration date MDue - Set the instrument recalibration due date CAL1 - Set the instrument's PRT range calibration parameter CAL2 - Set the instrument's thermistor range calibration parameter The calibration functions are described in detail in the following subsections. 7.9.1 Mtr Due This function displays the date the instrument is due for calibration. The date cannot be changed with this function. To edit the meter due date, refer to Sec- tion 7.9.19. 7.9.2 Prb Due This function displays the date the probe is due for calibration. The date is stored in the INFO-CON probe connector. The date cannot be changed with this function. To edit the probe due date, refer to Section 7.9.16. 7.9.3 Time This function displays and sets the time of day. The time is always set, dis- played, or printed in 24-hour format. To set each time segment, use the Up and Down buttons. Use the ENT button to move between time segments and to save the changed values. The CLR button moves to the next function. 7.9.4 Passcode All functions below this function are protected by a passcode so that only au- thorized users can access them. The passcode must be entered correctly to con- tinue. If the passcode is entered incorrectly or the MODE or CLR buttons are39 1522 Handheld Thermometer Readout User’s Guide 40 pressed, the message “Invalid Passcode” is displayed and the instrument is re- turned to the display mode that follows the function that was active when the CAL Mode was entered. Each individual instrument has its own unique passcode. The passcode number is given on a notice provided with this instrument. The equipment manager is responsible for keeping the passcode number stored in a proper location and ensuring that it is not lost or forgotten. If necessary, the passcode can be re- stored by contacting the manufacturer. To enter the passcode, use the Up and Down buttons to set each digit of the passcode and the ENT button to move to the next digit on the right. Press ENT twice when all digits are entered to move to the next function. If the passcode is entered correctly, the next function in the CAL Mode appears. 7.9.5 Date This function displays the present date and allows it to be changed. This func- tion is placed in the pass-code protected part of the CAL Mode since the cali- bration due warning messages depend on the present date as well as the stored due dates. Use the Up and Down buttons to set each date segment and the ENT button to move between the date segments. Press ENT when all digits are en- tered to save the changed values. The CLR button moves to the next function without saving the changed values. 7.9.6 Probe Lock This function locks or unlocks operation of the unit with the presently con- nected probe only. To set probe lock, use the Up and Down buttons to select ON or OFF and press the ENT button to store the selected setting and continue. If probe lock is set to ON, the serial number of the currently attached probe is stored. The instrument can only be used to display temperature with the probe that was attached when the probe lock was set ON. If probe lock is ON and a different probe is attached, the instrument returns to Blank Mode and displays the message "Probe is locked". Measuring is disabled. Probe lock ON also dis- ables access to the probe parameters that follow in the menu. If probe lock is OFF, the instrument can be used with any probe. To lock the in- strument with a new probe, set probe lock OFF, attach a new probe, and then set probe lock ON again. 7.9.7 Prb # This function displays the serial number of the probe and allows it to be set. The probe serial number is stored in the INFO-CON probe connector. Use the Up and Down buttons to set each digit and the ENT button to move to the next digit on the right. Press ENT when all digits are entered. 7 Display Functions CAL MODE 7.9.8 Prb Type This function specifies the type of probe and its characterization. It allows the instrument to use the appropriate algorithm to calculate temperature from the measured resistance of the probe. The functions that follow the probe conver- sion function for setting probe characterization coefficients depend on the se- lected probe type. The table below lists the probe types and the corresponding coefficients. Probe Type Description Coefficients ITS-90 PRTs calibrated to ITS-90 R(.01), a, b, c, d, a4, and b4 IEC751 PRTs (RTDs) conforming to IEC-751 none

CVD PRTs characterized by the Callendar-Van Dusen equation R0, Alpha, Delta, and Beta

YSI-400 Thermistors matching the YSI-400 series none

THERM Thermistors characterized by the therm- istor polynomial b0, b1, b2, and b3

Each of the conversion options is explained in the following sections along with their associated coefficients, when applicable. The probe type and associ- ated coefficients are stored in the INFO-CON probe connector. Use the Up and Down buttons to select the probe type and the ENT button to store and continue. Each of the coefficients that follow the probe type are set in the usual way. Use the Up and Down buttons to set each digit and the ENT button to move to the next digit to the right. Press ENT when all digits are entered. 7.9.9 ITS-90 The ITS-90 type is for PRTs calibrated and characterized using the Interna- tional Temperature Scale of 1990 equations. Probes that use this linearization curve generally have excellent accuracy (0.005 to 0.025°C), a wide operating range (–180°C to 420°C or higher). The coefficients that appear when ITS-90 is selected are “R(.01)”, “a”, “b”, “c”, “d”, “a4", and ”b4".These should be set to the coefficient values that appear on the PRT calibration certificate according to the following table. All coefficients, except R(.01), have values greater than or equal to –1 and less than or equal to +1, i.e. –1 ≤ value ≤ +1. The instrument does not allow values outside this range to be entered. If a value less than –1 is entered, the coeffi- cient defaults to –1. If a value greater than +1 is entered, the coefficient defaults to +1. Unused coefficients must be set to 0. 41 1522 Handheld Thermometer Readout User’s Guide 42 Coefficients Certificate Value R(.01) Rtpw a a5, a6, a7, a8, a9, a10, or a11 b b5, b6, b7, b8 or b9 c c6 or c7 d d a4 a4 or a5 b4 b4 or b5 Consider the following examples. Example 1: A PRT was calibrated to ITS-90 and its calibration certificate states values for coefficients R(273.16K), a4, b4, a8, and b8. Set the instrument's coefficients to the certificate values as follows. Coefficients Certificate Value R(.01) R(273.16K) a a8 b b8 c 0.0 d 0.0 a4 a4 b4 b4 Example 2: A PRT was calibrated to ITS-90 and its calibration certificate states values for coefficients R(273.16K), a5, and b5. Set the instrument's coefficients to the cer- tificate values as follows. 7 Display Functions CAL MODE Coefficients Certificate Value R(.01) R(273.16K) a a5 b b5 c 0.0 d 0.0 a4 a5 b4 b5 7.9.10 IEC751 The IEC751 probe type is for standard PRTs (RTDs) conforming to the IEC751 or DIN-43760 standards. This type of probe is generally low cost and has a wide operating range (–180°C to 420°C or higher), but has limited accuracy (0.15°C to 4°C). There are no user programmable coefficients associated with this probe type. Temperature is converted from resistance based upon the stan- dard PRT table resident in the instrument. 7.9.11 CVD The CVD (Callendar-Van Dusen) type is used with PRTs that have unique cali- bration coefficients or do not match the IEC-751 specification. This type of probe is generally low cost, has a wide operating range (–180°C to 420°C or higher), and has moderate accuracy (0.05°C to 1°C). This type uses the Callendar-Van Dusen equation to calculate temperature from resistance: rt C ⎧⎪⎪⎨⎪⎪ ⎩R 0⎧⎨⎩ + ⎡⎢ ⎣t − ⎛⎜ ⎝t − ⎞⎟ ⎠⎤⎥ ⎦( [ ° ]) = ⎫⎬⎭ t ≥ R 0 t 0 The coefficients R0, α, δ, and β can be set by the user using the functions “R0", ”Alpha", “Delta”, and “Beta” respectively. When editing “Alpha” there is an assumed 10–3exponent (i.e. 3.8500 is actually 0.0038500). 7.9.12 YSI-400 The YSI-400 type is for 2252Ω thermistors matching the characteristics of the YSI-400 series of thermistors. This type of probe generally is low cost, has a limited operating range (–40°C to 150°C), good accuracy (0.1°C to 0.4°C), and excellent resolution (0.002°C). There are no user programmable coefficients as- sociated with this probe type. Temperature is converted from resistance based upon a standard YSI-400 table resident in the instrument. 43 1 α δ 100 1100 1 0 ⎧⎪⎨⎪ ⎩1 100 100 1 100 1 100 + ⎢α ⎡⎢ ⎣t − δ t ⎛⎜ ⎝⎫⎪⎬⎪ ⎭t − ⎞⎟ ⎠− β ⎛⎜ ⎝3 < t − ⎞⎟⎠⎛⎜ ⎝t ⎞⎟ ⎠⎤⎥⎥ ⎦ 1522 Handheld Thermometer Readout User’s Guide 44 7.9.13 THERM The THERM type is for thermistors that have unique calibration coefficients or do not match the YSI-400 specification. This type of probe generally has mod- erate cost, a limited operating range (–40°C to 150°C), excellent accuracy (0.005°C to 0.01°C) and excellent resolution (0.002°C). This type uses the Steinhart-Hart equation in the following form: RTK ( [ ])[ Ω ] = exp[ b 0 + bT 1 − 1 + bT 2 − 2 + bT 3 − 3 ] The coefficients b0 through b3 are usually found on the calibration certificate of the probe. These coefficients are set with the functions “b0", ”b1", “b2", and ”b3". In some cases the equation is used without the b2 term. For this case, the “b2" coefficient should be set to 0. Consider the following examples. Example 1: A thermistor has coefficients for the equation ln(R) as a function of T given as a, b, c, and d. Set the instrument's coefficients to the Report of Calibration val- ues as follows: Coefficients Report of Calibration Value b0 a b1 b b2 c b3 d Example 2: A thermistor has coefficients for the equation ln(R) as a function of T given as a, b, and c. Set the instrument's coefficients to the Report of Calibration values as follows: Coefficients Report of Calibration Value b0 a b1 b b2 0.0 b3 c 7.9.14 Probe Wires This function sets the number of connecting wires in the probe. The instrument can be used with probes that have two, three, or four wires. Three wires con- necting the probe sensor instead of two allows the instrument to partially cancel 7 Display Functions CAL MODE measurement error due to the resistance of the wires. With four wires the in- strument can completely cancel the error. The internal measurement circuit is configured differently depending on the number of wires. Note: The instrument tries to calculate a measurement even if the wire settings are incorrect. Therefore, the Probe Wires setting must match the actual number of wires or loss of accuracy will result (see Section 6.6). Use the Up and Down buttons to set the value and press the ENT button to store and continue. 7.9.15 PCal This function shows the date the probe was calibrated and allows it to be set. The date is stored in the INFO-CON connector and is used simply for refer- ence. Use the Up and Down buttons to set each date segment and the ENT but- ton to move to the next date segment to the right. Press ENT when the date is correctly entered. Press CLR to move to the next function without changing the date. 7.9.16 PDue This function shows the date the probe is due for calibration and allows it to be set. The date is stored in the INFO-CON connector. The probe due date is regu- larly checked against the present date and if the calibration has expired the user is alerted with the message “Prb cal expired”. The message disappears only when the probe is recalibrated and the probe calibration due date is set to a fu- ture date. To set the date use the Up and Down buttons to set each date segment and the ENT button to move to the next date segment to the right. Press ENT when the date is correctly entered. Press CLR to move to the next function without changing the date. If any of the parameters in the CAL Mode were changed, the message “Up- loading params” is displayed when exiting the PDue parameter. After the pa- rameters have been uploaded into the INFO-CON connector, the meter advances to the next menu item. 7.9.17 Digital Filter The digital filter helps to smooth variations in the measurements and improve resolution. A negative effect of filtering is that it tends to slow the response to changes in temperature. You can increase the filter time constant to further im- prove accuracy and resolution or decrease the time constant to reduce the re- sponse time. Valid values are any number between 0.0 and 60.0 seconds. A value of 0.0 disables the filter. The default is 0.0. Use the Up and Down but- tons to set the value and press the ENT button to store and continue. Press CLR to move to the next function without changing the filter. 7.9.18 MCal This function shows the date the instrument was calibrated and allows it to be set. The date is used simply for reference. Use the Up and Down buttons to set45 1522 Handheld Thermometer Readout User’s Guide 46 each date segment and the ENT button to move to the next date segment on the right. Press ENT when the date is correctly entered. Press CLR to move to the next function without changing the date. 7.9.19 MDue This function shows the date the instrument is due for calibration and allows it to be set. The meter calibration due date is regularly checked against the pres- ent date and if the calibration has expired the user is alerted with the message “Mtr cal expired”. The message disappears only when the instrument is recalibrated and the meter calibration due date is set to a future date. To set the meter calibration due date, use the Up and Down buttons to set each date seg- ment and the ENT button to move to the next date segment to the right. Press ENT when the date is correctly entered. Press CLR to move to the next func- tion without changing the date. 7.9.20 CAL1 and CAL2 The CAL1 and CAL2 calibration parameters calibrate the instrument's PRT range and thermistor range respectively. These parameters directly affect the accuracy of the instrument and are only to be altered by an authorized, quali- fied technician as part of a regular instrument calibration operation. If the in- strument is ever reinitialized, these parameters are reset to 0. Refer to the calibration procedure in Section 9. Use the Up and Down buttons to set the value and press the ENT button to store and continue. Press CLR to move to the next function without changing the date. 8 Communications Interface RS-232 Connection 8 Communications Interface Remote communications allows an external device, such as a computer, to com- municate with the instrument to obtain measurement data and control its opera- tion. Communication is accomplished with various commands issued to the instrument through the RS-232 serial port. 8.1 RS-232 Connection The three-conductor jack for the serial port is located on the top of the instru- ment near the probe connector. One serial cable is included with the instrument. Additional or longer cables, of three meters or less, can be constructed by fol- lowing the wiring diagram shown in Figure 9. NOTE: The TxD line on one side connects to the RxD line on the other and vice-versa. To reduce the possibility of electrical interference, the serial cable should be shielded with low resistance between the connector and the shield. It should not be much longer than is necessary. GND RxD TxD GND TxD RxD 9 8765 4321Figure 9 RS-232 Wiring 47 1522 Handheld Thermometer Readout User’s Guide 48 The protocol for serial communications is 8 data bits, 1 stop bit, and no parity. Use no flow control. The baud rate is fixed at 2400, the linefeed to ON (all car- riage returns are followed by a linefeed (ASCII decimal 10)), and the duplex to HALF disabling echo. The serial port can be used to transmit measurements to a computer or printer. It can also be used to change settings of the instrument from a computer or in- terface with software. A full list of commands follows in Section 8.2. Commands sent to the instrument must end with an EOS character which is a carriage return (ASCII decimal 13) or linefeed character (ASCII decimal 10). Commands can be sent with upper or lower case letters. Data returned from the instrument ends with a carriage return and a linefeed. 8.2 Communication Command List 8.2.1 Primary Commands The following group of commands read or set various functions.

Description Command Example Response Format Response Example Range Response Example Range Read measurement, extended format t[emperature] t t: 999.999 {C, O, F, R, or K} mm-dd-yyyy hh:mm:ss t: 125.745 C 03-01-1999 15:49:15 t: 125.745 C 03-01-1999 15:49:15 t: 125.745 C 03-01-1999 15:49:15 Read measurement, simple format f[etch?] rea[d?] me[asure?] fetch? read? meas? fetch? read? meas? t: 999.999 {C, O, F, R, or K} t: 999.999 {C, O, F, R, or K} t: 999.999 {C, O, F, R, or K} t: 25.587 C t: 25.587 C t: 25.587 C t: 25.587 C Read minimum m[inimum] min min: 999.999 {C, O, F, R, or K} min: -14.653 C Read maximum ma[ximum] max max: 999.999 {C, O, F, R, or K} max: 416.781 C Clear minimum and maximum cl[ear] clear Read data labels Note: This command also sets the autolog label. lbnn lb01 lb99: xxxxxxxx Lb01: BATH

Set data labels lbnn=[nnnnnnnn] lb01=ENG 0 to 9, A to Z, -, _,.

Initiate download of demand logged data ddem ddem

Clear demand logged data dclr dclr

Read the number of demand logged readings currently in memory dlog dl dl: 999 dl: 51 Read number of readings in autolog memory alog alog log:9999 log:10

Response Description Command Example Example Range Set autolog mode on/off . Note: Exit Autolog menu to use this command. After alog =ON is sent, the buttons are disabled until the command alog=OFF is sent. alog=[ON/OFF] alog=ON ON or OFF Clear autolog memory aclr aclr Initiate download of autologged data. Note: Read Section 11.2 on downloading autologged data before at- tempting to use this command. daut daut Read autolog interval aint aint int: 99 {secs or min} int: 60 {secs or min} Set autolog interval Note: See Section 7.4.2 for specifics on log interval. aint=n aint=30 1, 5, 10, 10, 15, 30, 60, 120, 300, 600, 900, 1800, 3600 Read delta(x) measurement dx dx dx: 999.999 {C, O, F, R, or K} dx: -0.118 C Set delta(x) reference to pres- ent measurement sd[x] sd Read unit u[nit] u u: {C, O, F, R, or K} u: C Set unit u[nit]=C/O/F/K/R u=C C, O, F, K, R Read serial sample rate sa[mple] sa sa: 99999 sa: 10 Set serial sample rate sa[mple]=n sa=60 0 to 10,000 Read resolution digits re[solution] res res: 9 res: 3 Set resolution digits re[solution]=n res=0 1 to 3 Read time ti[me] time ti: hh:mm:ss ti: 16:23:45 Set timeNote: You must set hours, minutes, and seconds for the time to be set correctly. ti[me]=hh:mm:ss ti=08:15:00 00:00:00 to 23:59:59 Read identification information *i[dn?] *idn? <manufacturer>, <model>, <serial number>, <firmware version> Hart, 1522 95001, 1.24 Read model and firmware version *v[ersion] *ver ver.<model>, ver.1522, <firmware version> 1.24 Legend: [] Optional Command data {} Returns either information 49 8 Communications Interface Communication Command List Response Format

1522 Handheld Thermometer Readout User’s Guide 50 Response Format Response Description Command Example Example Range n Numeric data supplied by user 9 Numeric data returned to user x Character data returned to user 8.2.2 Calibration Commands The following group of commands directly or indirectly affect the accuracy of the instrument. These commands should only be used by qualified, authorized personnel. Calibration parameters can only be changed if protection is dis- abled by entering the proper pass-code using the command *pas= ddddd. Entering an invalid passcode or cycling the power re-establishes protection of the calibration parameters. The parameters can be read without disabling passcode protection. Description Command Example Response Format Response Example Range Unprotect calibration parame- ters with the pass-code *pas[scode]=nnnnn *pas=12345 Read passcode protection state *pas *pas ps: 9 Ps: 0 0 or 1 Read date da[te] date da: yyyy-mm-dd da: 1999-03-28 Set date da[te]=yyyy-mm-dd da=1999-03-28 1999-01-01 to 2100-12-31 Read probe serial number se[rial] ser ser: xxxxxxxxxx ser: 100231A Set probe serial number se[rial]=xxxxxxxxxx ser=001 0 to 9, A to Z, ., -, / Read probe type p[robe] pr pr: {ITS-90, IEC751, CVD, YSI400, THERM} pr: ITS-90 Set probe type p[robe]=IT[S-90]/ IE[C751]/ C[VD]/ Y[SI400]/ T[HR] pr ITS-90, IEC751, CVD, YSI400, THERM Read ITS-90 R(.01) or CVD R0 r[0] r0 r0: 999.999 r0: 100.035 Set ITS-90 R(.01) or CVD R0 r[0]=n r0=100.106 1 to 900 Read ITS-90 coefficient a/b/c/d/a4/b4 a {a/b/c/d/a4/b4}: -9.999999E-99 a: -2.8644101E-05 Set ITS-90 coefficient a/b/c/d/a4/b4=n a=-2.8644E-5 1.0 to 9.9e-18 Read CVD coefficient al[pha]/de[lta]/be[ta] al {al/de/be}: 9.99999999 al: 0.00385762 Set CVD coefficient al[pha]/de[lta]/be[ta]=n al=0.0038512 Coefficient Dependent Read THERM thermistor coefficient b0/b1/b2/b3 b3 {b0/b1/b2/b3}: 9.999999E-99 b3: -9.944070E-12 Set THERM thermistor coefficient b0/b1/b2/b3=n b3=-9.944E-12 E+/-18

Response Description Command Example Example Range Read probe wires w[ires] wi wi: 9 wi: 4 Set probe wires w[ires]=2/3/4 wi=4 2,3,4 Read probe calibration date pc[al] pcal pc: yyyy-mm-dd pc: 1999-03-28 Set probe calibration date pc[al]=yyyy-mm-dd pc=1999-03-28 1971-01-01 to 2099-12-31 Read probe due date pd[ue] pdue pd: yyyy-mm-dd pd: 1999-03-28 Set probe due date pd[ue]=yyyy-mm-dd pd=1999-03-28 1971-01-01 to 2099-12-31 Read filter fi[lter] fi fi: 99.999999 fi: 0.5 Set filter fi[lter]=n fi=0 0.0 to 60.0 Read low range calibration *c1 *c1 *c1: 9.999 *c1: -0.0121 Set low range calibration *c1=n *c1=-0.012 –1.999 to 1.999 Read high range calibration *c2 *c2 *c2: 9999.9 *c2: -0.9 Set high range calibration *c2=n *c2=-0.9 –1980.0 to 1980.0 Read meter calibration date mc[al] mcal mc: yyyy-mm-dd mc: 1999-03-28 Set meter calibration date mc[al]=yyyy-mm-dd mc=1999-03-28 1971-01-01 to 2099-12-31 Read meter due date md[ue] mdue md: yyyy-mm-dd md: 1999-03-28 Set meter due date md[ue]=yyyy-mm-dd md=1999-03-28 1971-01-01 to 2099-12-31 Legend: [] Optional Command data {} Returns either information n Numeric data supplied by user 9 Numeric data returned to user x Character data returned to user 51 8 Communications Interface Communication Command List Response Format

9 Calibration Required Equipment 9 Calibration The 1522 should be calibrated at regular intervals to ensure that it continues to measure with proper accuracy. Calibration should only be done by qualified, authorized personnel. 9.1 Required Equipment The following items are required to test and calibrate the 1522: • 0Ω four-wire resistor (short) • 25Ω four-wire resistor, accurate within 20 ppm (±0.0005Ω) • 100Ω four-wire resistor, accurate within 20 ppm (±0.002Ω) • 400Ω four-wire resistor, accurate within 20 ppm (±0.008Ω) • 4 kΩ four-wire resistor, accurate within 50 ppm (±0.2Ω) • 10 kΩ four-wire resistor, accurate within 50 ppm (±0.5Ω) • 40 kΩ four-wire resistor, accurate within 50 ppm (±2Ω) • 100 kΩ four-wire resistor, accurate within 50 ppm (±5Ω) • 500 kΩ four-wire resistor, accurate within 75 ppm (±37.5Ω) Each resistor must be attached with an INFO-CON probe connector. The 25Ω, 100Ω, and 400Ω resistors must be programmed with the CVD probe type with units set to ohms. The 4 kΩ, 10 kΩ, 40 kΩ, 100 kΩ, and 500 kΩ resistors must be programmed with the THERM probe type with units set to ohms. 9.2 Calibration Procedure Calibration requires adjustment of the CAL1 and CAL2 parameters at 100Ω and 10 kΩ respectively (see Section 7.9.20). The calibration parameters can be accessed from the front panel by pressing the MODE button and holding it for three seconds, releasing it, then pressing the ENT button (see Section 7.9). You must enter the pass-code to continue (see Section 7.9.4). The step-by-step pro- cedure is as follows: 1. Connect the 100Ω resistor. Adjust the CAL1 parameter by subtracting the measured error. For example, if the resistor is exactly 100.000Ω and the 1522 measures 100.029Ω, CAL1 should be adjusted by subtracting 0.029 from the current value of CAL1. 2. Verify the accuracy at 0Ω, 25Ω, 100Ω, and 400Ω. 3. Connect the 10 kΩ resistor. Adjust the CAL2 parameter by subtracting the measured error. For example, if the resistor is exactly 10.0000 kΩ and the 1522 measures 10.0029 kΩ, CAL2 should be adjusted by subtracting 2.9 from the current value of CAL2. 53 1522 Handheld Thermometer Readout User’s Guide 54 4. Verify the accuracy at 0Ω, 4kΩ, 10 kΩ, 40 kΩ, 100 kΩ, and 500 kΩ. 5. Set the meter calibration date to the present date (see Section 7.9.18). 6. Set the meter due date to a user defined date (see Section 7.9.19). 10 Maintenance 10 Maintenance • This instrument has been designed with the utmost care. Ease of operation and simplicity of maintenance have been a central theme in the product development. With proper care the instrument should require very little maintenance. Avoid operating the instrument in oily, wet, dirty, or dusty environments. • If the outside of the instrument becomes soiled, it may be wiped clean with a damp cloth and mild detergent. Do not use harsh chemicals on the surface which may damage the LCD or the plastic outside shell. • If a hazardous material is spilt on or inside the equipment, the user is re- sponsible for taking the appropriate decontamination steps as outlined by the national safety council with respect to the material. • Before using any cleaning or decontamination method except those rec- ommended by Hart, users should check with an Authorized Service Cen- ter (see Section 1.3) to be sure that the proposed method will not damage the equipment. • If the AC adapter becomes damaged, have it replaced immediately. Never disassemble the AC adapter or attempt to repair it. • If the instrument is used in a manner not in accordance with the equip- ment design, the operation of the thermometer readout may be impaired or safety hazards may arise. 55 11 Troubleshooting An Error Message Is Displayed 11 Troubleshooting In case you run into difficulty while operating the 1522, this section provides some suggestions that may help you solve the problem. Below are several situa- tions that may arise followed by possible causes of the problem and suggested actions you might take. 11.1 An Error Message Is Displayed The following table lists possible error messages, their causes, and suggested actions. Problem Solution “Recharge Needed” The battery is low and needs to be recharged. When this message first appears the user has approximately 30 minutes of charge left. If the battery is not recharged, the 1522 continues to operate until the bat- tery drops below 0% and then automatically shuts itself off after dis- playing the error message. “--------” The display shows ‘ - - - - - - - ‘. The instrument is unable to detect that a probe is connected. Check that a probe with a properly pro- grammed INFO-CON connector is attached. “Probe is locked” The incorrect probe is attached. The meter is set to accept only the probe with the given serial number. Attach the correct probe or have the instrument properly programmed for the new probe. See Section 7.9.6, Probe Lock. “Prb cal expired” The probe calibration has expired. Have the probe calibrated and the calibration due date reset. “Mtr cal expired” The meter calibration has expired. Have the instrument calibrated and the calibration due date reset. “Invalid Passcode” The passcode entered was not correct. Check the passcode on the Passcode Notice sent with the instrument.

The instrument display is blank when normally it should show measurements. Make sure the instrument has power, either from the batteries or the AC adapter. Verify that the initialization information appears on the display when the power is switched on. Check to make sure that a probe is properly connected. Check to make sure that the INFO-CON connector is programmed properly.

“Uploading params” Probe parameters have been edited. The probe parameters were ed- ited in the CAL Mode and either the MODE button was pressed while in the CAL Mode of the MODE button was pressed after scrolling through the CAL mode and leaving the PDue parameters. After the parameters have been uploaded into the INFO-CON probe connector, the meter advances to the next display mode or to the next function in the CAL Mode. 57 1522 Handheld Thermometer Readout User’s Guide 58 Problem Solution

While attempting to measure re- sistance the display shows an in- correct value. Poor or incorrect connection of the probe. A common mistake is to connect the wires of the probe to the wrong terminals. Check the wir- ing carefully (see Figure 7). Open, shorted, or damaged sensor or lead wires. Check the resis- tance across the sensor using a handheld DMM. Also check the resis- tance between common pairs of leads. Check to make sure there is no conductivity between any of the leads and the probe sheath. Use a good-quality sensor to avoid errors caused by drift, hysteresis, or in- sulation leakage. Stem conduction error. Make sure the stem of the probe is im- mersed in the medium with adequate depth and a tight fit. Electrical interference. Intense radio-frequency radiation near the 1522 or the probe can induce noise into the measurement circuits re- sulting in erratic readings. Try eliminating the source of interference or moving the 1522 to a different location. A well-grounded, shielded ca- ble should be used for the probe.

Memory Check Error Memory Recover X. A critical parameter (CAL1, CAL2, or Passcode) is corrupt and the in- strument can recover the correct value for that parameter. Press any key and the display reads “Check Settings”. Press any key again to resume normal operation. Also, check other settings in the thermome- ter (if used), such as, filter, units, and resolution. The number follow- ing the message is used by authorized technicians. Memory Invalid! A critical parameter (CAL1, CAL2, Passcode, Meter Due Date, Meter Cal Date, or Serial Number) is corrupt and the instrument cannot re- cover the correct value for that parameter. Press any key and the dis- play reads “Contact Factory”. Contact a Hart Authorized Service Center (see Section 1.3) for assistance in guiding you through the process of reentering these parameters. Note: The parameters stored in the INFO-CON, Probe Wires, Probe Type, Probe Parameters, are not checked by the meter during memory testing. 11.2 Downloading Autologged Data The 1522 Handheld Thermometer readout stores up to 10,000 readings in its autolog memory. These readings can be downloaded to a computer using the RS-232 serial port. By default, the 1522 serial port operates at 2400 baud. However, when downloading autologged readings over the serial port or print- ing to a serial printer, the instrument temporarily changes its baud rate to 9600 baud to reduce the download time. The following steps should be followed to download autologged data using the serial port: 1. Connect the instrument to a COM port on the computer using the serial cable. 2. Run a terminal program such as Windows® Terminal or HyperTerminal®. 11 Troubleshooting Placement of Infrared Dongle for IR Data Transfer a) Set up the terminal program to use the correct COM port and operate at 2400 baud, 8 data bits, 1 stop bit, no parity, no flow control. b) If you want to save the downloaded data to a file, configure your ter- minal program to capture the incoming text and save it to a text file. Refer to your terminal program's documentation for details on how to do this. 3. To determine how many autologged readings are stored in the instru- ment's memory, send the command "ALOG". If the response to the "ALOG" command is "0", there are no readings to download. 4. To begin downloading the autologged data, send the command "DAUT" to initiate the download process. The 1522 then sends a response to the terminal program indicating that the baud rate needs to be set to 9600. The 1522 automatically switches its baud rate to 9600 baud and waits to receive this same command again at 9600 baud. a) In the terminal program, change the baud rate setting to 9600 baud. The terminal program connection may need to be disconnected and reconnected to enable the baud rate. b) Send the command "DAUT" once again at the new baud rate. The 1522 should immediately begin downloading the data at 9600 baud. If no readings have been stored, the 1522 will not respond to "DAUT" command. c) When downloading is complete, the 1522 automatically sets its baud rate back to 2400 baud. d) If the terminal program was set to capture the incoming data to a file, stop capturing at this time. e) In the terminal program, change the baud rate setting back to 2400 baud. f) If you wish to abort the download process before it has completed, press 'CLR' on the front panel of the 1522. The 1522 sets its baud rate back to 2400 baud automatically. Reset the terminal program's baud rate to 2400 baud. 5. If the response to the "ALOG" command was not "0" and the 1522 does not respond to the "DAUT" command, turn the 1522 off, then back on again and repeat steps 3-4. 11.3 Placement of Infrared Dongle for IR Data Transfer The 2374 IR Dongle should be placed no further than 0.5 meters away from the infrared window on the 1522 and within a ±15° angle. Placement of the IR dongle within the triangle area shown below will allow correct data transmis-59 1522 Handheld Thermometer Readout User’s Guide sion. For best results, place the IR dongle and the IR window on the 1522 at an angle of 0° and within 0.5 meters. Figure 10 Infrared Dongle Position 11.4 CE Comments 11.4.1 EMC Directive Hart Scientific’s equipment has been tested to meet the European Electromag- netic Compatibility Directive (EMC Directive, 89/336/EEC). The Declaration of Conformity for your instrument lists the specific standards to which the unit was tested. The instrument was designed specifically as a test and measuring device. Com- pliance to the EMC directive is through IEC 61326-1 Electrical equipment for measurement, control and laboratory use – EMC requirements (1998). As noted in the IEC 61326-1, the instrument can have varying configurations. The instrument was tested in a typical configuration with shielded, grounded probe and RS-232 cables. Emissions may, in non-typical applications, exceed the levels required by the standard. It is not practical to test all configurations, as the manufacturer has no control over the probes the user may connect to the instrument. 11.4.1.1 Immunity Testing The instrument was tested to the requirements for industrial locations. This al- lows the instrument to be used in all types of locations from the laboratory to the factory floor. Criterion B was used for Radiated RF (IEC 61000-4-3) and Conducted RF (IEC 61000-4-6). Therefore, the operation of the instrument may be affected by excessive electromagnetic interference and the instrument may not perform within the normal specification limits in such an environment. Criterion C was used for Electrostatic Discharge (ESD, IEC 61000-4-2) and 60 11 Troubleshooting CE Comments Electric Fast Transit (EFT, Burst, IEC 61000-4-4). If the instrument is sub- jected to EFT conditions at 2kV, the instrument may require the user to cycle the power to return to normal operation. 11.4.1.2 Emission Testing The instrument fulfills the limit requirements for Class A equipment but does not fulfill the limit requirements for Class B equipment. The instrument was not designed to be used in domestic establishments. 11.4.2 Low Voltage Directive (Safety) In order to comply with the European Low Voltage Directive (73/23/EEC), Hart Scientific equipment has been designed to meet the IEC 1010-1 (EN 61010-1) and the IEC 1010-2-010 (EN 61010-2-010) standards. 61


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