MULTI MEASURING INSTRUMENTS M-140HC Instruction Manual
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MULTI MEASURING INSTRUMENTS M-140HC Instruction Manual

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COMPLY WITH HI-VOLTAGE PHASE CURRENT MEASUREMENT
CLAMP LEAKER
M-140HC
INSTRUCTION MANUAL
Thank you very much for selecting our M-140HC Clamp Leaker complying
with hi-voltage line current measurement. This instrument is high reliable
leakage current clamp meter developed by our superior technique.
Before use, read this instruction manual completely and apply this
instrument correctly.
Keep this instruction manual carefully to take out whenever you need.
MULTI MEASURING INSTRUMENTS CO.,LTD.
Akihabara Murai Bldg. 7F, 1-26 Kanda Sakuma-cho,
Chiyoda-ku, Tokyo, 101-0025 Japan
TEL: 81-3-3251-7013 FAX: 81-3-3253-4278
URL: http://www.multimic.com/
E-mail:
multi@multimic.com

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Summary of Contents for MULTI MEASURING INSTRUMENTS M-140HC

  • Page 1 CLAMP LEAKER M-140HC INSTRUCTION MANUAL Thank you very much for selecting our M-140HC Clamp Leaker complying with hi-voltage line current measurement. This instrument is high reliable leakage current clamp meter developed by our superior technique. Before use, read this instruction manual completely and apply this instrument correctly.

  • Page 2: Safety Summary

    SAFETY SUMMARY  To use this instrument safely, read this “SAFETY SUMMARY” carefully and apply the instrument correctly.  The CAUTIONs and WARNINGs which appear on the following pages are stated to prevent the operator & other people from the dangers and their properties from the damages beforehand.

  • Page 3: Specifications

    1. GENERAL This instrument is a leakage current clamp meter with high precision and wide range combined by newest CT technologies which enabled to make up CT utilities extremely. Also, it can measure phase current of CVT and or CV cable in high voltage circuit very simply by our originally developed measuring method.
  • Page 4 2-3 General Specifications Applicable Circuit Voltage : less than AC600V (insulated conductor) Withstanding Voltage : AC2200V/1 minute between outer case and CT core Operating Temperature : 0~40 C, less than 80%RH (Non-condensing) Storage Temperature : -10~60 C, less than 70%RH (Non-condensing) Power Supply : AAA alkaline battery (LR03)x3 Current Consumption...

  • Page 5: Operation Procedure

    3. OPERATION PROCEDURE 3-1 Name of Part & Explanation ① Clamp CT : Current detection sensor, clamp-on method ②Open/Close Lever : By pushing to inside, CT will be opened ③ Range Switch : For power On/Off, ACmA, ACA, Line Current CVT and Line Current CV.
  • Page 6 3-2 Battery Installment WARNING POSSIBLE ELECTRICAL SHOCK OR ACCIDENT  Do not replace the batteries under the conditions of measuring current or voltage  Do not operate the instrument with battery cover off. CAUTION When not using the instrument for a long period, remove the batteries and keep separately.
  • Page 7 3-3 Measurement To use the instrument safely, follow the contents described in WARNING and CAUTION without fail. WARNING POSSIBLE ELECTRICAL SHOCK  For safety, use the instrument in circuit less than 600V. Before operation, confirm the circuit voltage to be used. POSSIBLE ELECTRICAL SHOCK OR ACCIDENT ...
  • Page 8 2) Leakage Current Measurement (1) Leakage current measurement at grounding line. The operation is the same manner as line current measurement. (2) Leakage current measurement except for grounding line clamp CT to two wires at single phase and three wires at three phase in a lump. 3) Phase Current Measurement of Hi-Voltage Circuit (with shielded grounding line) CAUTION FOR MEASUREMENT ...
  • Page 9 ① Set range switch③ from OFF to “CVT” position (display will appear). ② Set frequency change switch④ to applying frequency (50 or 60Hz). ③ Clamp 1/2 CT to the cable as drawing shown on P7 and read displayed value. ④ The circuit can be opened by disconnector , etc. after confirmed no loading condition. ⑤...

  • Page 10: Repair Service

    4. REPAIR SERVICE When requesting for repair service, please bring the instrument directly to the dealer where you bought. When mailing the instrument, always pack it in its original or equivalent packing materials to avoid any damage during the transportation and also put together with documents showing your name, address, phone number and defect point.

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