THERMO SCIENTIFIC FD1530M (01) PDF Document

To avoid electrical shock, this furnace must:

1. Use a properly grounded electrical outlet of correct voltage and current handling capacity.

2. Disconnect from the power supply prior to maintenance and servicing.

3. Have the door switch operating properly.

To avoid burns, this furnace must:

Not to be touched on the exterior or interior surfaces during use or for a period of time after use.

To avoid personal injury:

1. Do not use in the presence of flammable or combustible materials; fire or explosion may result. This device contains components which may ignite such materials.

2. Refer servicing to qualified personnel.

Be sure ambient temperature does not exceed 104°F (40°C). The recommended ambient temperature is 17°C – 27°C. Ambient above this level may result in damage to the controller.

Allow at least six inches of space between the furnace and any combustible surface. This permits the heat from the case surface to escape so as not to create a possible fire hazard.

Prior to connecting your THERMO SCIENTIFIC FD1530M furnace to your electrical supply, be sure the two position power switch is in the OFF position.

To avoid electrical shock, this furnace must be installed by a competent electrician who ensures compatibility among furnace specification, power source and ground code requirements.

Both the ON/OFF power switch and the digital display will illuminate when power is switched ON. The furnace will begin to heat to the controller’s current setpoint.

The amber cycle light will illuminate whenever the power is being applied to the heating elements. The cycle light will flicker on/off as furnace reaches setpoint.

Open and close the door a few times; note that the amber CYCLE light will be out when door is open. This check must be done when furnace is heating or when cycle light is illuminated. If this condition is not true, consult the Troubleshooting section before proceeding.

When the controller is turned ON it will perform a short self-test and then display a default page. The measured value (process value) is found in the upper display and the setpoint is found in the lower display.

If you want to change the setpoint, press the SCROLL button until “SP1” is displayed. Press the UP or DOWN button until the desired setpoint value is displayed and then release the button. A few seconds after the button is released, the controller will accept the new value and is indicated by a brief flash of the display. Press PAGE button to return to HOME DISPLAY.

Press SCROLL until “UNITS” is displayed. The temperature units can be changed by pressing up and down buttons. Choice of Celsius (°C), Fahrenheit (°F), Kelvin (°K), Percentage (%), or None (nonE).

The Controller Parameters on the Home display are:

• °C, °F, °K, %, or None: Temperature units in Celsius (default), Fahrenheit, Kelvin, Percentage (PErc), or None (nonE).
• A1.DHI: Deviation high alarm.
• A2.HI: High Limit alarm. Read Only.
• A3.LO: Low Limit alarm. Read Only.
• A.TUNE (tune): One-shot autotune enable.
• WRK.OP: Working Output power. Read Only.
• PV.OFS: Process Value Offset. Read Only.
• SP.RAT: Ramp Rate Setpoint (default units is minutes).
• DWELL: Time for dwell or delay (default units is minutes).
• T.STAT: Timer Status. Active only when timer is active.
• TM.CFG: Timer configuration.

The Pid List parameters are:

• PB: Proportional band (in display units).
• TI: Integral time in seconds.
• TD: Derivative time in seconds.
• ACCESS List Code: Access code (Code needed to enter or change the other configuration parameters which are not normally accessible). Not accessible.

The controller will flash an alarm message in the home display if an alarm condition is detected:

• A2.HI: Measured value full scale high alarm.
• A1.DHI: Measured value deviation high alarm.
• S.br: Sensor break: check that sensor is connected correctly.
• LBR: Loop break: check that the heating circuits are working properly.
• Ld.F: Heater Circuit fault: indication of either an open or short solid state relay, a blown fuse, missing supply or open circuit heater.

This controller provides sensor break protection in the event the thermocouple opens. If an open thermocouple condition occurs, the digital display will blink “S.br” and the power to the heating element will be shut OFF (Cycle light will extinguish).

The “Deviation High” alarm is the only alarm value, which can be changed. To change it, press the SCROLL button until “A1.DHi” appears on the display. Press the UP or DOWN button to select the OTP value you desire. We recommend a value of 20° above your working temperature to provide protection for your workload.

To use the tuning feature:

1. Start tuning with the process at ambient temperature. This allows the tuner to calculate the low cutback and high cutback values more accurately.

2. Adjust the setpoint to your desired value.

3. Press the SCROLL button until display reads, “A.TUNE.”

4. Press the UP or DOWN button to select, “on.”

5. Press the PAGE button to return to the HOME DISPLAY. The display will alternately flash between “tunE” and the HOME DISPLAY while tuning is in progress.

6. The controller will then turn the heating on and off to induce an oscillation. When the measured value reaches the required setpoint the first cycle will end.

7. Tuning will be complete after two oscillation cycles and then the tuner will turn itself off.

8. Normal control function will resume after the controller calculates tuning parameters.

Note: Furnace must be at ambient temperature before starting a tune. “Stat” and “Sp.rr” must be set to OFF or “tunE” will not initiate.

Note: Tune has completed when “tunE” stops flashing on display.

The Ramp and Dwell can be configured to five different modes:

1. Mode 1 (DWELL): The dwell time begins once the setpoint reaches the set threshold. The END TYPE action is executed when the dwell timer reaches the end.

2. Mode 2 (DELY): The timer starts immediately upon instrument power-up, or when run is selected. The instrument remains in standby until the time has elapsed. After the time has elapsed, the instrument controls up to setpoint.

3. Mode 3 (SF.ST): Starts automatically on power up. This is a soft-start function. If the PV is below the Soft Start Threshold, then the power is limited to the Soft Start Limit until the threshold is met.

To set up the SetPoint Rate Limit:

1. Press the SCROLL button until the “SP.RAT” (Ramp Rate) is displayed.

2. Set the desired Ramp rate with the UP or DOWN buttons, if the ramp to setpoint feature is needed. If the Ramp rate is not needed, then set to “OFF” with the UP or DOWN buttons.

3. Press the SCROLL button until “TM.CFG” (Ramp & Dwell mode) will be displayed, select the desired mode with the UP or DOWN buttons. (DWEL, DELY, or SF.ST).

4. Press the SCROLL button until “DWELL” will be displayed set the desired Dwell time with the UP or DOWN buttons.

5. Press the PAGE button and SCROLL button together until the Actual temperature is displayed.

Note: The program must be stopped and the controller must be displaying the actual temperature before beginning the Setup.

To run a program, press the SCROLL button until “T.STAT” is displayed, set to “run” with the UP or DOWN buttons; or from the HOME DISPLAY, press UP and DOWN arrows together. Press the PAGE button to display Actual temperature.

Press the SCROLL button until “T.STAT” is displayed. Set to “hold” with the UP or DOWN buttons; or from the HOME DISPLAY, press UP and DOWN arrows together. Press the PAGE button to display Actual temperature.

Press the SCROLL button until “T.STAT” is displayed, Set to “res” with the UP or DOWN buttons.

Press the PAGE and SCROLL buttons at the same time.

Press the SCROLL button until “T.STAT” is displayed. The display will show “run” if the program is running, “hold” if it is paused or “res if it is not running. Press the PAGE button to display actual temperature.

When the controller is turned ON, it will perform a short self-test and then change to the HOME DISPLAY. The HOME DISPLAY shows the measured temperature (process value) in the upper display and the desired value (setpoint) in the lower display.

If you want to change the setpoint, press the UP or DOWN button until the desired setpoint value is displayed in the lower display and then release the button.

From the HOME DISPLAY press the SCROLL button. The display will briefly show the temperature units in °C/F/K and then return to the HOME DISPLAY. (If you require a different temperature unit call Customer Service)

From the HOME DISPLAY press the SCROLL button twice. Press the UP or DOWN button to display the value. This value is a read-only value and cannot be changed.

The purpose of tuning your furnace is to match the characteristics of your controller to the characteristics of the process being controlled. Good control is evidenced by: stable, straight-line control of the setpoint temperature with no fluctuations; No overshoot or undershoot of the setpoint temperature; rapid restoration of the setpoint temperature when external disturbances cause deviations from the setpoint.

This controller has automatic tuning features which install optimum tuning parameters to give the best temperature accuracy. No manual loading of tuning parameters is needed. We recommend that you tune the furnace to your specific application to obtain the best results. To provide the best temperature accuracy possible, use these features when you install your furnace and whenever you change your application or procedure.

Note: Display will flash “tu.ER” if an error occurs during tuning. To clear the error and restart tuning, simultaneously press the PAGE and SCROLL buttons and follow the steps outlined in “Autotuning.”

Note: To stop the tuning function, simultaneously press the PAGE and SCROLL buttons.

To tune your furnace using autotuning:

1. Load your furnace with a load similar to your normal load and close the door.

2. Set the setpoint temperature.

3. Press the PAGE button until the display reads, “Atun LiSt.”

4. Press the SCROLL button until “tunE OFF” is displayed.

5. Press the UP or DOWN button to select “on.”

6. Simultaneously press the PAGE and SCROLL buttons to return to the HOME DISPLAY. The display will flash “tunE” while tuning is in progress.

Note: Start tuning with the process at ambient temperature. This allows the tuner to calculate the low cutback and high cutback values more accurately.

To tune your furnace using adaptive tuning:

1. Load your furnace with a load characteristic of those you intend to heat in it.

2. Press the PAGE button until display reads, “Atun LiSt.”

3. Press the SCROLL button until “drA OFF” is displayed.

4. Press the UP or DOWN button to select “on.”

5. Press the SCROLL button until “drA.t” is displayed.

6. Press the UP or DOWN button until the desired trigger value is achieved.

Do not overload your furnace chamber. If the load is to be heated uniformly it should not occupy more than the center two-thirds of the furnace chamber. Failure to observe this caution could result in damage to furnace components.

Furnace Loading guidelines:

1. For best results, use only the center 2/3 of the furnace chamber.

2. If you are heating a number of small parts, spread them throughout the center two-thirds of the furnace chamber.

3. Keep objects away from thermocouple.

4. Use insulated tongs and mittens when loading and unloading furnace.

5. Always wear safety glasses.

6. Use the hearth plates supplied to protect bottom of chamber. Part # PHX2.

Before using any cleaning or decontamination method except those recommended by Thermo Scientific, users should check with Thermo Scientific that the proposed method will not damage the equipment.

Clean by wiping the outside case of the unit with a damp cloth and mild soap solution.

Housekeeping is vital to your electric furnace—KEEP IT CLEAN! Run your furnace up to 871°C (1600°F) empty occasionally to burn off the contamination that may exist on the insulation and elements. Run for approximately two hours with the door slightly open. See warning.

Possible causes and corrective actions:

Possible causes and corrective actions:

Possible causes and corrective actions:

Possible causes and corrective actions:

Possible causes and corrective actions:

Possible causes and corrective actions:

Possible causes and corrective actions:

To avoid electrical shock, this furnace must always be disconnected from the power supply prior to maintenance and service.

To Replace a Heating Element:

1) Disconnect furnace from power supply.

2) Remove back terminal cover.

3) Loosen the nuts on the terminals of the element to be replaced.

4) Straighten the leads of the old element.

5) Open the door and pull the defective element out. (It may be easiest to turn the furnace so that the element to be removed is on top.)

6) Slide the new element into place, threading the leads through the insulating porcelain bushing in the back of the furnace.

7) Reverse the disassembly procedure, making sure you thread all element lead wires through the insulating porcelain bushings on the back of the furnace and cut off any excess element lead wire after securing the leads to the terminal points.

8) Replace the back terminal cover.

9) Reconnect furnace to power supply.

10) Test the operation of the furnace.

To Replace The Platinel II Thermocouple:

1) Disconnect the furnace from power supply.

2) Remove the back terminal cover. (Note placement and connection of wires.)

3) Remove the screw and washer from clip holding the thermocouple in place and remove the nuts and washers on the thermocouple terminals.

4) Remove the thermocouple.

Note: Pull the thermocouple straight out of the hole in the chamber to avoid damage to the insulation.

5) Insert the new thermocouple straight through hole in the chamber until the tip extends approximately 1″ into the chamber. Make sure the thermocouple lead wire with the colored bead is connected to the terminal marked positive.

6) Secure the thermocouple extension wires to the terminals (yellow to +).

7) Secure the thermocouple with clip, screw and washer.

8) Replace the back cover.

9) Reconnect furnace to power supply.

10) Test the operation of the furnace.

To Replace Door Switch (Micro-Switch):

1) Disconnect the furnace from power supply.

2) Remove the screws from the front dial and the three bottom screws and lock washers on the back cover of the control section.

3) Remove the back terminal cover.

4) Disconnect the two wires on terminals T1 and T2 going to the control section.

5) Slide the control section forward.

6) Remove two screws and nuts from the door switch and slide the switch from the wire rod.

7) Disconnect the wires from the door switch. Identify or mark the wires disconnected to insure proper placement and connection when re-installing.

8) Reconnect the wires identified or marked in step 7 to the new door switch.

Note: Center the rod from front to back of hole in control case before tightening screws.

9) Install the new door switch while sliding it over the wire rod and secure with the screws and nuts removed in step 6.

10) Slide the control section back and replace the screws and lock washers described in step 2.

11) Connect wire marked T1 to terminal T1 and wire marked T2 to terminal T2 with nuts removed in step 4.

12) Replace the back terminal cover with screws and lock washers removed in step 3.

13) Test operation of door switch. (See next section “To Realign Door Switches” step 5.)

14) Reconnect to power supply.

To Realign Door Switches:

1) Disconnect the furnace from power supply.

2) Loosen the setscrew on the cam. Open the door approximately 1″ and rotate the cam counterclockwise until you hear a click then rotate the cam clock- wise until you hear a click, tighten the set screw on adjusting cam.

3) Open and close the door; the switch should click when the door is opened approximately 2″ and 1″ to 2″ before the door is closed.

4) Reconnect to power supply.

5) To test the operation of the door switch: turn the power switch on, set the control to a setting high enough to keep the control from cycling, open and close the door; the cycle light should turn OFF when the door is opened approximately 2” and turn back ON 1″ to 2″ before the door is closed.

All parts listed herein may be ordered from the Thermo Scientific dealer from whom you purchased this unit or can be obtained promptly from the factory. When service or replacement parts are needed, we ask that you check first with your dealer. If the dealer cannot handle your request, then contact our Customer Service Department.

Prior to returning any materials to Thermo Scientific, please contact our Customer Service Department for a “Return Materials Authorization” number (RMA).

Please refer to the Specification Plate for complete model number, serial number, and series number when requesting service, replacement parts or in any correspondence concerning this unit. The above information can be found on the dataplate attached to the equipment. If available, please provide the date purchased, the source of purchase (manufacturer or specific agent/rep organization), and purchase order number.