FREE ENGLISH COMMERCIAL ELECTRIC MS2033C (01) PDF USER GUIDE
FREE ENGLISH COMMERCIAL ELECTRIC MS2033C (01) PDF USER MANUAL
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FREE ENGLISH COMMERCIAL ELECTRIC MS2033C (01) PDF OWNER MANUAL
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FREE ENGLISH COMMERCIAL ELECTRIC MS2033C (01) PDF REFERENCE MANUAL
FREE ENGLISH COMMERCIAL ELECTRIC MS2033C (01) PDF INSTRUCTION MANUAL
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What are the general safety precautions for using the AC Digital Clamp Meter?
Please read the manual carefully and pay attention to related safe working standards before using this meter. Protection provided by the instrument will be impaired if used in a manner not specified by the manufacturer.
PRECAUTIONS:
WARNING: This manual contains information and warnings necessary for safe operation and maintenance of the meter. It is recommended that you read and understand this instruction manual thoroughly prior to using the meter. Failure to understand these instructions and to comply with the warnings and instructions contained herein can result in serious injury or damage.
WARNING: Full compliance with safety standards can be guaranteed only with test leads supplied.
WARNING: Ensure the meter works properly by testing a known voltage first. If not working properly, have the meter serviced before using.
WARNING: Do not use the meter or test leads if they look damaged.
WARNING: Do not measure by exceeding the indication value stated in each measuring range.
WARNING: Failure to follow safety guidelines may prevent the meter’s built in protection from working properly.
WARNING: Use caution when working with voltages above 60VDC or 30V AC rms. Such voltages pose a shock hazard.
WARNING: Make sure to use the correct input jack, function, and range when measuring.
WARNING: Do not use the meter in explosive gas, vapor, or dusty environments.
WARNING: Connect the common test lead first, then the hot lead. Disconnect in reverse order.
WARNING: Turn off power and discharge capacitors before measuring resistance, diodes, or continuity.
WARNING: Before opening the case, always disconnect test leads from all energized circuits.
WARNING: Do not touch input jacks during measurement to avoid electric shock.
CAUTION: Use extreme caution when checking electrical circuits. To avoid damage to the meter, do not exceed the limits of the input values shown in the technical specification tables.
CAUTION: Before changing functions, disconnect the test leads from the circuit under test.
WARNING: To avoid damage or incorrect readings, check for AC voltage present before making DC voltage measurements.
CAUTION: Keep your fingers behind the probe barriers while measuring.
What do the safety symbols on the meter mean?
| Symbol | Definition |
|---|---|
| Indicates important safety information, refer to the operating manual. | Indicates important safety information, refer to the operating manual. |
| Caution, possibility of electric shock. | Caution, possibility of electric shock. |
| Equipment protected throughout by DOUBLE INSULATION or REINFORCED INSULATION. | Equipment protected throughout by DOUBLE INSULATION or REINFORCED INSULATION. |
| This product CONFORMS TO UL STD 61010-1, 61010-2-032 and 61010-2-033. | This product CONFORMS TO UL STD 61010-1, 61010-2-032 and 61010-2-033. |
| Alternating current (AC). | Alternating current (AC). |
| Direct current (DC). | Direct current (DC). |
| CAT III | Applicable to test and measure circuits connected to the distribution part of the building’s low-voltage MAINS installation. Example: fixed equipment switch boards, circuit breakers, wiring (including cables, bus bars, junction boxes, switches, sockets, output terminals on devices for industrial use and other equipment). The product meets with the requirements of 600V CAT III and pollution degree 2. |
| Earth (ground) terminal. | Earth (ground) terminal. |
| Application around and removal from UNINSULATED HAZARDOUS LIVE conductors is permitted. | Application around and removal from UNINSULATED HAZARDOUS LIVE conductors is permitted. |
What is included in the package?
| Part | Name | Description |
|---|---|---|
| A | Current clamp head | Measures AC current. |
| B | Safety barrier | Helps keep hands from touching conductors while measuring current. |
| C | Rotary switch | Used to select function and range. |
| D | Backlight/Hold button | Hold this button to turn on the backlight. The worklight turns on as well when the rotary switch is in one of the current positions. Hold down the button again to turn off the backlight. Press this button to keep the current reading on the display. The “H” symbol appears on the display. Press this button again to return this display to normal. |
| E | Frequency/Duty Cycle button | Press this button while in voltage mode to switch to frequency mode. Press this button again to switch to duty cycle mode. Press this button a third time to return to voltage mode. |
| F | Display | Displays the measured reading. |
| G | Input jack | Connection for the live (red) test lead for voltage, resistance, capacitance, diodes and continuity. |
| H | COM jack | Connection for the common (black) test lead. |
| I | FUNC button | Press “FUNC” to switch between functions in the multi-function position. |
| J | Clamp trigger | Hold the trigger to open the clamp head. |
| K | Worklight | Press the button to light the test environment. |
| L | Red test probe | Connects to the input jack. |
| M | Black test probe | Connects to the COM jack. |
| N | K-type thermocouple | Connects to the COM jack and the input jack for temperature measurement. |
What is the Automatic Power Off function?
If the meter is idle for 30 minutes after turning it on, the meter automatically powers off to save the battery. To turn the meter back on, press the FUNC button.
What do the symbols on the LCD display mean?
| Part | Symbol | Definition |
|---|---|---|
| 1 | AC/DC symbol | Alternating current, Direct current |
| 2 | Diode/Continuity symbol | Diode, continuity |
| 3 | AUTO | Automatic measuring range |
| 4 | °C °F | Celsius/Fahrenheit |
| 5 | Battery symbol | Low battery |
| 6 | – | Polarity indicator (negative) |
| 7 | H | Reading hold state |
| 8 | % | Percentage (duty ratio) |
| 9 | mV, V | Millivolt, Volt (voltage) |
| 10 | A | Amperes (current) |
| 11 | nF, µF, mF | Nanofarad, Microfarad, Millifarad |
| 12 | Ω, kΩ, MΩ | Ohm, Kilohm, Megohm (resistance) |
| 13 | Hz, kHz | Hertz (frequency) |
What are the technical specifications of the clamp meter?
Product Specifications
| Safety Rating | CAT III 600V |
| Maximum voltage between terminals and earth (ground) | 600V DC or AC rms |
| Altitude | Up to 2000 meters |
| Battery | 3 x 1.5V AAA batteries |
| Temperature coefficient | 0.1 accuracy/°C (<18°C or >28°C) |
| Display | 4,000 counts |
| Polarity indication | “-” displayed for negative polarity |
| Exceeding measuring range display | Display shows “OL” |
| Sampling rate | Approximately 3 times per second |
| Operating environment | 0°C to 40°C, 80% relative humidity |
| Storage temperature | -10°C – 60°C, 70% relative humidity (battery removed) |
| Size | 198 x 79 x 38 mm |
| Weight | Approximately 220 g (with battery) |
| Maximum jaw opening | 26 mm |
AC Current Specifications
| Measuring Range | Resolution | Accuracy |
|---|---|---|
| 40A | 0.01A | ±(2.5% of rdg + 5 digits) |
| 400A | 0.1A | |
| 600A | 1A |
Additional Specifications:
– Frequency Range: 50Hz~60Hz
– Maximum Input Current: up to 120% of full scale for no more than 60 seconds
– Response: Average; calibrated to rms sine wave
Temperature Specifications
| Measuring Range | Resolution | Accuracy |
|---|---|---|
| -4~1832°F | 1°F | ±(3.0% of rdg + 5°F) |
DC Voltage Specifications
| Measuring Range | Resolution | Accuracy |
|---|---|---|
| 4V | 1mV | ±(0.8% of rdg + 3 digits) |
| 40V | 10mV | |
| 400V | 0.1V | |
| 600V | 1V |
Additional Specifications:
– Input Impedance: 10MΩ
– Overload Protection: 600V DC or AC rms
– Maximum Input Voltage: 600V DC
AC Voltage Specifications
| Measuring Range | Resolution | Accuracy |
|---|---|---|
| 4V | 1mV | ±(1.0% of rdg + 5 digits) |
| 40V | 10mV | |
| 400V | 0.1V | |
| 600V | 1V |
Additional Specifications:
– Input Impedance: 10MΩ
– Overload Protection: 600V DC or AC rms
– Maximum Input Voltage: 600V AC
– Frequency Range: 40 – 400Hz
– Response: Average; calibrated to rms sine wave
Frequency Specifications
| Measuring Range | Resolution | Accuracy |
|---|---|---|
| 50Hz | 0.01Hz | ±(1.0% of rdg + 5 digits) |
| 500Hz | 0.1Hz | ±(1.0% of rdg + 5 digits) |
| 5kHz | 1Hz | |
| 10kHz | 0.01kHz |
Additional Specifications:
– Measuring Scope: 10~100kHz
– Input Signal Range: ≥0.2V AC (rms) (input current will increase when the frequency to be measured increases)
– Overload Protection: 600V DC or AC rms
Duty Cycle Specifications
| Measuring Range | Resolution | Accuracy |
|---|---|---|
| 0.1-99.9% | 0.1% | ±2.0% |
Resistance Specifications
| Measuring Range | Resolution | Accuracy |
|---|---|---|
| 400Ω | 0.1Ω | ±(1.0% of rdg + 5 digits) |
| 4KΩ | 1Ω | |
| 40KΩ | 10Ω | |
| 400KΩ | 0.1KΩ | |
| 4MΩ | 1KΩ | ±(2.0% of rdg + 5 digits) |
| 40MΩ | 10KΩ |
Additional Specifications:
– Open Circuit Voltage: 0.4V
– Overload Protection: 250V DC or AC (rms)
Circuit Continuity Test
| Measuring Range | Resolution | Accuracy |
|---|---|---|
| Continuity symbol | 0.1Ω | If the resistance of the circuit to be measured is less than 50Ω, the meter’s built-in buzzer may sound. |
Additional Specifications:
– Open Circuit Voltage: Approximately 0.4V
– Overload Protection: 250V DC or AC (rms)
Capacitance Specifications
| Measuring Range | Resolution | Accuracy |
|---|---|---|
| 5.0nF | 0.001nF | ±(4.0% of rdg + 5 digits) |
| 50nF | 0.01nF | ±(3.0% of rdg + 3 digits) |
| 500nF | 0.1nF | |
| 5.0µF | 1nF | |
| 50µF | 0.01 µF | |
| 100µF | 0.1 µF |
Additional Specifications:
– Overload Protection: 250V DC or AC (rms)
Diode Test
| Measuring Range | Resolution | Accuracy |
|---|---|---|
| Diode symbol | 0.001V | Displays the approximate diode forward voltage value. |
Additional Specifications:
– Forward DC current is about 1mA
– Backward DC voltage is about 1.5V
– Overload Protection: 250V DC or AC (rms)
How do I complete a current measurement?
WARNING: If the current range is not previously known, set the range to the highest range and adjust down as necessary.
WARNING: When measuring bare wires, use extra caution to avoid electric shock.
1. Move the rotary switch (C) to the A position (1) and choose the appropriate measuring range.
2. Hold the trigger (J) to open the clamp head (A), and clip one lead of the measurement circuit to be tested in the clamp (A). Connect the lead at the center of the clamp to ensure an accurate reading. Ensure you only clamp one conductor as multiple conductors with different directions will cancel out readings.
3. Read the displayed value on the LCD display (F).
How do I complete a voltage measurement?
WARNING: Do not attempt to take any voltage measurement that exceeds 600V AC or DC in order to avoid electrical shock and/or damage to the meter.
CAUTION: Use caution when measuring high voltages to avoid electrical shock or damage.
1. Insert the black test probe (M) into the COM jack (H) and the red test probe (L) into the INPUT jack (G).
2. Move the rotary switch (C) to DC voltage position (1) or AC voltage position (2).
3. Connect the test probes (L and M) with the voltage source or both ends of the load in parallel for measurement and read the voltage on the display (F).
How do I complete frequency and duty cycle measurements?
1. Insert the black test probe (M) into the COM jack (H) and the red test probe (L) into the INPUT jack (G).
2. Move the rotary switch (C) to the V~ position (1).
3. While in voltage mode, press the Hz/% button (E) to switch to frequency measuring mode. Connect the test leads (L and M) across the circuit to be measured.
4. Press the Hz/% button (E) again to switch to duty cycle mode. Connect the test leads (L and M) across the circuit to be measured.
5. Read the reading on the display (F).
6. Press the Hz/% button (E) to return to voltage mode.
How do I complete a resistance test?
WARNING: To avoid injury or damage to the meter, make sure to turn off all power and discharge all capacitors before measuring resistance.
NOTE: Sometimes the resistor value and measured resistance differ. This is due to the meter’s output test current that goes through all possible paths between leads.
NOTE: When the input end is open, the LCD shows “OL” outrange state.
NOTE: For low resistance measurements, short the test leads and record the resistance displayed. Then connect to the circuit and subtract the recorded resistance from the measurement for the most accurate results.
1. Insert the black test probe (M) into the COM jack (H) and the red test probe (L) into the INPUT jack (G).
2. Move the rotary switch (C) to the resistance position (1).
3. Connect the test probes (L and M) to both ends of the resistor or circuit to be tested for measurement and read the reading on the display (F).
How do I complete a diode test?
WARNING: To avoid injury or damage to the meter, make sure to turn off all power and discharge all capacitors before measuring diode.
1. Insert the black test probe (M) into the COM jack (H) and the red test probe (L) into the INPUT jack (G).
2. Move the rotary switch (C) to the diode position (1).
3. Press the FUNC button (I) to switch to diode measuring mode.
4. Connect the red test probe (L) and black test probe (M) across the circuit to be measured.
5. Read the measured forward biased voltage drop on the display (F). If the leads are reversed, only “1” is displayed.
How do I complete a circuit continuity test?
WARNING: To avoid injury or damage to the meter, make sure to turn off all power and discharge all capacitors before measuring continuity.
1. Insert the black test probe (M) into the COM jack (H) and the red test probe (L) into the INPUT jack (G).
2. Move the rotary switch (C) to the continuity position (1).
3. Press the FUNC button (I) twice to switch to continuity mode.
4. Connect the red test probe (L) and black test probe (M) across the circuit to be measured. If the resistance of the circuit to be measured is less than 50Ω, the meter’s built-in buzzer may sound.
5. Read the resistance value on the display (F).
How do I complete a capacitance measurement?
WARNING: Electric shock hazard. To avoid electric shock, before measuring capacitance, discharge the capacitance completely.
1. Insert the black test probe (M) into the COM jack (H) and the red test probe (L) into the INPUT jack (G).
2. Move the rotary switch (C) to the capacitance position (1).
3. Connect the red test probe (L) and black test probe (M) across the circuit to be measured.
4. Read the capacitance value on the display (F).
How do I complete a temperature measurement?
1. Move the rotary switch (C) to the TEMP position (1). The display will show the current ambient temperature.
2. Connect the positive of the type-k thermocouple (N) to INPUT jack (G) and the negative to COM jack (H).
3. Touch the tip of the thermocouple (N) to the object to be tested.
4. Read the measured temperature value on the display (F).
How do I replace the batteries?
IMPORTANT: Change the battery when the battery symbol appears on the LCD in order to avoid incorrect data.
WARNING: Do not mix old and new batteries. Do not mix alkaline, standard (carbon-zinc), or rechargeable (ni-cad, ni-mh, etc) batteries.
WARNING: Before you open the meter, always disconnect it from all sources of electric current and make sure you are not charged with static electricity, which may destroy the internal components.
WARNING: When you open the meter, remember that some internal capacitors can retain a dangerous voltage level even after the instrument is switched off.
1. Turn the meter off by turning the rotary switch (C) to the OFF position.
2. Disconnect the black and red test leads (L and M) and/or any connectors from the terminals on the meter.
3. Use a screwdriver to unscrew and remove the battery cover located on the back of the meter.
4. Remove the used batteries and replace with three new AAA 1.5V batteries.
5. Reattach the battery cover and secure with the screws.
When should I replace the test leads?
Replace test leads if they become damaged or worn.
WARNING: Use test leads that meet EN 61010-031 standard and rated CAT III 600V or better.
How do I care for and clean the meter?
CAUTION: If the meter is not going to be used for a long time, take out the battery and do not store the meter in a high temperature or high humidity environment.
WARNING: Any adjustment, maintenance, or repair work carried out on the meter while it is live should be carried out by a qualified electrician.
Do not use abrasives or solvents to clean the meter. Use a damp cloth and mild detergent only. Dirty or wet input jacks can affect readings.
Use a cotton swab with a cleaner/lubricant (such as WD-40) to clean the jacks. Use a new swab for each jack to prevent cross-contamination.
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