Tempo Communications CmA-360 TRMS Instruction Manual
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Tempo Communications CmA-360 TRMS Instruction Manual

Milliamp clamp meter
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INSTRUCTION MANUAL
CmA-360 TRMS
Milliamp Clamp Meter
Read and understand all of the instructions and safety
information in this manual before operating or servicing
this tool.
Register this product at www.TempoCom.com
REV01     © 2020 Tempo Communications Inc.   
 09/20

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Summary of Contents for Tempo Communications CmA-360 TRMS

  • Page 1 INSTRUCTION MANUAL CmA-360 TRMS Milliamp Clamp Meter Read and understand all of the instructions and safety information in this manual before operating or servicing this tool. Register this product at www.TempoCom.com REV01     © 2020 Tempo Communications Inc.     09/20...

  • Page 2: Table Of Contents

    Center 265 True RMS Leakage Current Clamp Meter TABLE OF CONTENTS SAFETY INFORMATION ..............3 GENERAL SPECIFICATIONS ............... 3 ELECTRICAL SPECIFICATIONS ............4 3-1 AC mA Measurement ............... 4 3-2 AC A Measurement ................5 3-3 AC V Measurement ................5 3-4 DC V Measurement ................

  • Page 3: Safety Information

    Clamp Meter SAFETY INFORMATION Do not operate the tester if there is any sign of damage to the tester or the test leads. Check the main function dial and make sure it is in the correct position before each measurement. Do not perform resistance and continuity tests on a live power system.

  • Page 4: Electrical Specifications

    Center 265 True RMS Leakage Current Clamp Meter Power Source: 1.5V size AAA battery X 2 Typical battery Life: (without buzzer, backlight) 40 hours at AC mA and ACA and ACV function; 60 hours at DCV and Ohm function. (Alkaline battery) Auto Power Off: If there is no key or dial operation for 30 minutes, the meter will power itself off to save battery life.

  • Page 5: Ac A Measurement

    Clamp Meter 3-2 ACA (True RMS) Accuracy Range Resolution 50~60 Hz 50~500 Hz 6.000 A 0.001 A 1.0% + 5dgts 2.0% + 5dgts 60.00 A 0.01 A Low Pass Filter Range Resolution Accuracy 6.000 A 0.001 A 2.0% + 5dgts 60.00 A 0.01 A 3-3 ACV (True RMS)

  • Page 6: Description Of The Instrument

    Center 265 True RMS Leakage Current Clamp Meter 4. DESCRIPTION OF THE INSTRUMENT 4-1 Description of the Display Auto power off indication Polarity indication Low battery indication AC measurement indication DC measurement indication Current measurement indication Voltage measurement indication ZERO indication Data hold indication PEAK hold indication Low pass filter indication...

  • Page 7: Description Of Front And Rear

    Clamp Meter 4-2 Description Of Front And Rear Current Sensing Clamp ○ Safety protection ring ○ Backlight button ○ Clamp opening handle ○ Function select dial ○ ZERO button ○ PEAK & button ○ Data hold & LPF button ○ LCD display ○...

  • Page 8: Button Instruction

    Center 265 True RMS Leakage Current Clamp Meter 5. BUTTON INSTRUCTION 5-1 HOLD & LPF Function It is possible to freeze the displayed value by pressing on the "HOLD" button. Press the "HOLD" button again to exit the Hold mode. To activate the Low Pass Filter (LPF) feature, press and hold the “LPF”...

  • Page 9: Measuring Instruction

    Clamp Meter 6. MEASURING INSTRUCTION 6-1 AC A and AC mA measurement: Set the range selector switch to the desired position. The current to be measured should be within the selected measuring range. Normal measurement (see Fig.1): Press the jaw trigger to open the clampmeter jaws and close them over one conductor only.

  • Page 10: Ac V Measurement

    Center 265 True RMS Leakage Current Clamp Meter Fig.2 Measuring out of balance leakage current: 3-Phase 3-Wire system Single-Phase 2-Wire system 6-2 AC V Measurement： ： WARNING! Maximum Input Voltage is 600V AC/DC. Do not attempt to Take any voltage measurement that may exceed this maximum to avoid Electrical shock hazard and/or damage to this instrument.

  • Page 11: Dc V Measurement

    Clamp Meter 6-3 DC V Measurement： ： Switch main function selector to range. Connect the red test lead to the “ + ” terminal and black lead to the “COM”terminal. Measure voltage touching the test lead tips to the test circuit where the value of voltage is needed.

  • Page 12: Resistance Measurement

    Center 265 True RMS Leakage Current Clamp Meter 6-5 Resistance Measurement Switch the main function to range. Connect the red test lead to the “+”terminal and the black lead to the "COM" terminal. Connect tip of the test leads to the points where the value of the resistance is to be measured.

  • Page 13: Maintenance

    Clamp Meter 8. MAINTENANCE WARNING! Before opening the meter, disconnect both test leads. Never use the meter unless the battery cover is in place and the screw is tightened. CAUTION! To avoid contamination or static damage, do not touch the circuit board without proper static protection.
  • Page 14 Tempo Communications 1390 Aspen Way • Vista, CA 92081 • USA 800-642-2155 • FAX: 760-598-9263 Latin America 760-510-0558 • An ISO 9001 Company Tempo Europe Ltd. • Brecon House, William Brown Close Cwmbran, NP44 3AB, UK • Tel: +44 1633 927 050...

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