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Summary of Contents for Hioki CM4001
- Page 1 CM4001 Instruction Manual Complete AC LEAKAGE CLAMP METER Oct. 2024 Revised edition 1 CM4001A963-01 HIOKI CM4001A963-01...
- Page 2 HIOKI CM4001A963-01...
- Page 3 The Bluetooth word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Hioki E.E. Corporation is under license. Other trademarks and trade names are those of their respective owners. HIOKI CM4001A963-01...
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Page 4: What Is Leakage Current
The clamp meter measures two currents at the same time, which cancel each other out, resulting in 0 A. (2) Clamp the ground wire Current that leaks through the insulation of the load equipment flows to ground. “Making Measurements” (p.6) HIOKI CM4001A963-01... -
Page 5: Product Overview
“Using GENNECT Cross” (p.21) Z3210-to-Excel direct data entry function (HID function): Transfer measured data directly to Excel. “Z3210-to-Excel direct data entry function (Excel direct input function, HID function)” (p.23) Measurement principles For the measurement principles, see the relevant Hioki Technical Notes. HIOKI CM4001A963-01... -
Page 6: Measurement Categories
Measurement category IV (CAT IV) Applicable to test and measuring circuits connected at the source of the building’s low-voltage mains installation. EXAMPLE: Measurements on devices installed before the main fuse or circuit breaker in the building installation. HIOKI CM4001A963-01... -
Page 7: Part Names
Part Names Part Names Name Operation grip Barrier Operation keys Display Power key Serial number Battery cover Strap hole HIOKI CM4001A963-01... -
Page 8: Making Measurements
Switch the range as required. Clamp the instrument around the object under measurement. Wear appropriate protective gear such as gloves. Clamp the instrument so that the object under measurement is located at the center of the jaws. Read the measured value. HIOKI CM4001A963-01... -
Page 9: Leakage Current Measurement
Clamp around two wires together in a bundle in the single-phase 2-wire circuit. Clamp around four wires together in a bundle in the three-phase 4-wire circuit. Even when the instrument cannot be clamped, you can measure leakage current using the ground wire of the equipment instead. HIOKI CM4001A963-01... - Page 10 3 but location 2. If the insulation on the load device has deteriorated at location in the figure, you can detect the leakage current through the measurement by clamping around the bundled wires, not at location 5 but location 4. HIOKI CM4001A963-01...
- Page 11 Depending on the magnitude of the input current, the jaws may generate a sound due to resonance; however, this does not affect any measurement. When you cannot find the magnitude of an input current, disable the filter function and start measurement using the auto range or 600.0 A range. HIOKI CM4001A963-01...
- Page 12 Example: If 10.05 mA is displayed in the 60.00 mA range and 30.2 mA is displayed in the 600.0 mA range, trust 30.2 mA in the 600.0 mA range. For detailed information, visit the GENNECT Cross website. HIOKI CM4001A963-01...
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Page 13: Manual Hold
When both the following conditions are satisfied, the instrument freezes the readout. The measured value does not fluctuate beyond the variation range for a certain period. The measured value exceeds the threshold value. The instrument continues to freeze the readout until the auto-hold conditions are satisfied again. HIOKI CM4001A963-01... - Page 14 The variation range and threshold value may vary depending on the range. Range Variation width Threshold value 60.00 mA 600.0 mA 400 counts or less 6.000 A 150 counts 60.00 A 500 counts or less 600.0 A HIOKI CM4001A963-01...
- Page 15 Every time you press the key, another item is displayed. (To cancel, hold down the MAX/MIN key for 1 s or more.) To freeze the readouts, press the HOLD key. The instrument measures the RMS value. AVG means the average value of all measured values. HIOKI CM4001A963-01...
- Page 16 Greater than or equal to +60.0 mA or less 600.0 mA range 600.0 mA than or equal to −60.0 mA Greater than or equal to +0.600 A or less than 6.000 A 6.000 A range or equal to −0.600 A HIOKI CM4001A963-01...
- Page 17 Greater than or equal to +20.0 A or less than 600.0 A 600.0 A range Auto or equal to −20.0 A (To return to current measurement, hold down the MAX/MIN RANGE keys simultaneously for 1 s or more.) HIOKI CM4001A963-01...
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Page 18: Comparator Function (Comp)
Press the MAX/MIN key or RANGE key to set the threshold value. Holding down the key increases or decreases the value continuously. Press the HOLD key. The threshold value is confirmed, and the instrument displays the measurement screen. HIOKI CM4001A963-01... - Page 19 Comparator Function (COMP) Video Find issues faster with a comparator function on YouTube HIOKI CM4001A963-01...
- Page 20 [rUn] segments blink on the display. To change the threshold value Press the MAX/MIN key or RANGE key to return to the threshold value selection screen (step Press the HOLD key. The instrument starts event logging. HIOKI CM4001A963-01...
- Page 21 The instrument display the maximum value from the recording start. The blinking red backlight warns you that the maximum value exceeds the set threshold value. Press HOLD to freeze the readout. Finishing the simple event logging Cycle the instrument. HIOKI CM4001A963-01...
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Page 22: Display Backlight
If the measured value exceeds the threshold value with the comparator function or event recording function The warning backlight works only for the present measured value. The warning backlight does not work for the freezing value and recorded values of the MAX, MIN, AVG, PEAK MAX, and PEAK MIN display functions. HIOKI CM4001A963-01... - Page 23 Install GENNECT Cross on your mobile device. Turn on the instrument, and then hold down the HOLD MAX/MIN keys simultaneously for 1 s or more. The wireless communications function is enabled. flashes: communicating appears: wireless function on disappears: wireless function off HIOKI CM4001A963-01...
- Page 24 Choose a measurement function to perform measurement. General measurement Waveform graph, FFT Photo drawing function Event logging “Event Logging Function (EVENT)” (p.23) Logging Comparator Harmonic analysis Firmware updating of the instrument For detailed information, visit the GENNECT Cross website. HIOKI CM4001A963-01...
- Page 25 Remove the instrument from the object under measurement and turn off the instrument. Connect the Z3210 Wireless Adapter (option) to the instrument. Turn the power on while holding down the RANGE keys simultaneously. The HID setting saved in the Z3210 is displayed. HIOKI CM4001A963-01...
- Page 26 1. Use the Bluetooth setting of your mobile device to delete the instrument. 2. Disable the Z3210’s HID function. 3. Use the Instrument Setting of GENNECT Cross to reconnect the instrument. For detail information, please visit the Z3210’s website. HIOKI CM4001A963-01...
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