HIOKI CM4375 AC/DC Clamp Meter
Easily Get Into Tight Spaces
Innovative Jaw Provides Remarkable Accessibility
Inrush Current Measurement Accuracy Guaranteed

OVERVIEW
Hioki clamp on meters are best-in-class measuring devices incorporating Hioki’s expertise in current sensing technology. The CM4375 is a 1000A AC/DC True RMS clamp meter that features a uniquely designed slim jaw that lets you easily get into the narrow gaps between cables in crowded electrical distribution boxes without fear of damaging the cables or the clamp meter. The broad -25°C to 65°C operating temperature range and IP54 dustproof and waterproof enclosure to enable professionals to work quickly in challenging situations including the development, repair, and maintenance of equipment and devices such as electric vehicles. Additionally, the high-voltage DC measurement capability of up to 1700 V (*1) is ideal for the clamp maintenance inspections of electrical and solar power equipment.

CAT IV 600 V, CAT III 1000 V

Made for Real-World Situations Uncompromising Design
Panel overcrowding is commonly found in many power distribution breakers and termination boxes. The newly designed thin sensor gets into even the most limited spaces. Eliminate the issues of trying to find the right wire or forcing the clamp around thick cables.

Key Features

*1:When using the optional DC High Voltage Probe P2000. The clamp meter itself is capable of measuring up to 1000 V DC.
*2:Wireless Adapter Z3210 is necessary.
 

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SPECIFICATIONS

Basic specifications
Accuracy guaranteed: 1 year
 

DC Current range	1000 A, (Max. display 999.9 A) , Basic accuracy: ±1.3% rdg. ±0.3 A (at 30.1 A - 999.9 A)
AC Current range	1000 A (Max. display 999.9 A, 10 Hz to 1 kHz, True RMS), Basic accuracy 45-66 Hz: ±1.8% rdg. ±0.3 A (at 30.1 A - 900.0 A)
Crest factor	1000 A range: 1.5
DC+AC Current range	1000 A (DC, 10 Hz to 1 kHz, True RMS), Basic accuracy DC, 45-66 Hz: ±1.3% rdg. ±1.3 A (at 30.1 A - 900.0 A)
DC Power range	0.000 kVA to 1000 kVA (When using P2000: 0 kVA to 2000 kVA) (Automatically switched based on voltage range), Basic accuracy: ±2.0% rdg. ±20 dgt.
DC Voltage range	600.0 ｍV to 1000 V (When using P2000: 600.0 V to 2000 V)
AC Voltage range	6.000 V to 1000 V, 4 ranges (15 Hz to 1 kHz, True RMS), Basic accuracy 45 - 66 Hz: ±0.9% rdg. ±0.003 V (at 6 V)
DC+AC Voltage range	6.000 V to 1000 V, 4 ranges, Basic accuracy DC, 45-66 Hz: ±1.0% rdg. ±0.013 V (at 6 V)
Resistance range	600.0 Ω to 6.000 MΩ, 5 ranges, Basic accuracy: ±0.7% rdg. ±0.5 Ω (at 600 Ω)
Electrostatic capacity range	1.000 μF to 1000 μF, 4 ranges, Basic accuracy: ±1.9% rdg. ±0.005 μF (at 1 μF)
Frequency range	9.999 Hz to 999.9 Hz, 3 ranges, Basic accuracy: ±0.1% rdg. ±0.003 Hz (at 9.999 Hz)
Temperature (K)	-40.0°C to 400.0°C, add temperature probe accuracy to basic accuracy of ±0.5% rdg. ±3.0°C
Harmonic levels	[With Z3210 installed] Voltage/Current harmonic levels up to 30th, Content factor, Total harmonic distortion ratio *Harmonics can be displayed with our free app GENNECT Cross.
Other functions	Continuity check, Diode check, Automatic AC/ DC detection, DC current and DC voltage polarity detection function, MAX/MIN/AVG/ PEAK MAX/PEAK MIN value display, Low-pass filter function, Display value hold, Auto hold, Backlight, Auto power save, Buzzer sound, Zero-adjustment
Dustproof, waterproof	IP54 (While in storage, or when measuring the current an insulated conductor. Do not use when wet.)
Power supply	LR03 Alkaline battery ×2 Continuous use: approx. 40 hr (without Z3210 installed), approx. 20 hr. (with Z3210 installed and using wireless communications) Other conditions: 100 A AC measurement, backlight off, 23°C reference value
Core jaw diameter	φ34 mm (1.34 in)
Smallest dimension of jaw cross-section	9.5 mm (0.37 in) (Range value of 44 mm (1.73 in) from the tip of the jaw)
Dimensions and mass	65 mm (2.56 in) W × 242 mm (9.53 in) H × 35 mm (1.38 in) D mm, 350 g (12.3 oz)
Included accessories	Test Lead L9300, Carrying Case C0203, LR03 Alkaline battery ×2, Instruction Manual ×2, Operating Precautions ×1