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Io/Ior CLAMP LEAKER
MCL-500IRV
INSTRUCTION MANUAL
Thank you very much for selecting our Io/Ior clamp leaker
model MCL-500IRV.
This model is complex instrument and employs a very reliable
mechanical/electronic design.
Before you use your new instrument, read this instruction
manual completely and familiarize yourself thoroughly with
all functions and 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
Home Page :
http://www.multimic.com/
E-mail :
multi@multimic.com
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Summary of Contents for MULTI MEASURING INSTRUMENTS CO.,LTD. MCL-500IRV
- Page 1 Io/Ior CLAMP LEAKER MCL-500IRV INSTRUCTION MANUAL Thank you very much for selecting our Io/Ior clamp leaker model MCL-500IRV. This model is complex instrument and employs a very reliable mechanical/electronic design. Before you use your new instrument, read this instruction manual completely and familiarize yourself thoroughly with all functions and keep this instruction manual carefully to take out whenever you need.
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Page 2: Safety Summary
SAFETY SUMMARY observe by all means ● 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
SPECIFICATIONS 1. CURRENT DETECTION ZCT Inside diameter : Φ40mm Method : Split core type ZCT Withstanding voltage : AC 2200V/1 minute between CT core and grip 2. MEASURING PART Measuring function : Leakage current (Io), Line current (I), Resistive leakage current (Ior), AC Voltage (V) Measuring method : Clamp CT (in case of Ior, based on voltage standard to be inputted directly or by non-contact voltage... - Page 4 Accuracy (23 C ±5 C , less than 85%RH) Leakage current (Io), Line current (I), Resistive leakage current (Ior), Voltage (V) Range Resolution Display Accuracy 40mA 0.01mA 0.40mA~39.99mA ±1.0%rdg±10dgt 400mA 0.1mA 40.0mA~399.9mA ±1.0%rdg±10dgt 0.001A 0.4A~3.999A I, Io ±1.0%rdg±10dgt 0.01A 4.0A~39.99A ±1.0%rdg±10dgt 500A 0.1A...
- Page 5 NAME OF EACH PART AND EXPLANATION |<34>| ① Clamp Type ZCT : Sensor for detecting current and clamp method. ② Open/Close Lever : CT will open by pushing this lever to inside. ③ Power Switch (POWER) : By pressing this switch, the power becomes on and pressing once again, power off.
- Page 6 ⑧ Range Switch : Switch for current & voltage range (40mA, 400mA, 4A, 40A, 500A, 500V). ⑨ Voltage Input Terminal : Red & Black terminals for voltage measurement and (Red, Black, Green) direct voltage input for measurement of resistive leakage current (Ior). For the measurement of line voltage, set the range switch to 500V.
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Page 7: Replacement Of Batteries
REPLACEMENT OF BATTERIES WARNING △ ！ POSSIBLE ELECTRICAL SHOCK OR ACCIDENT ● Do not replace the batteries under the conditions of clamping CT to the conductor and inputting voltage to the terminals. ● Do not operate the instrument with battery cover off. CAUTION △... - Page 8 MEASUREMENT For the safety operation, keep and pay attention to the cautions and warnings stated in this manual. WARNING △ ！ POSSIBLE ELECTRICAL SHOCK ● This instrument is for the use of low voltage circuit. Do not make measurements in the circuit more than AC 600V. Before use, check and confirm the voltage of circuit to be measured.
- Page 9 (2) Leakage Current Measurement 1) Measurement at grounding line Do the same method as for line current measurement. 2) Measurement for other circuit except for grounding line The operations are the same as for line current but clamp CT to 2 wires en bloc in case of single phase and 3 wires en bloc in case of 3 phase.
- Page 10 (4) Resistive Leakage Current (Ior) Measurement ATTENTION FOR MEASUREMENT The range of Ior is connected with ~A range. Firstly, measure Io current at ~A range and then, measure Ior current at the same range. (In case of Io value at 40mA range, measure Ior at 40mA range.
- Page 11 1) Press POWER switch ③ once. 2) Insert the equipped test leads for direct input or non-contact voltage input sensor to the voltage input terminals ⑨ (Red, Black, Green) according to the colors of each lead. 3) Input the voltage and current according to the circuit to be measured. As to details, refer to wiring method as under.
- Page 12 In case of 3 Phase/3 Wires (Measuring Mode: Δ) [Ld] on display Loading Device Black (Wiring Method of Non-contact Voltage Input Sensor) In case of Single Phase/3 Wires (Measuring Mode 1φ) [no] on display Load ． ． White Load Green Black...
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Page 13: Repair Service
In case of 3 Phase/3 Wires (Measuring Mode: Δ) [no] on display Loading Divice White Green Black 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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