Hioki clamp meters are best-in-class measuring devices incorporating Hioki’s expertise in current sensing technology. The CM4373 is a 2000A True RMS clamp meter that features stronger jaws, broader -25℃ to 65℃ operating temperature range and IP54 dustproof and waterproof enclosure to enable professionals to work quickly in tough 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 is ideal for the clamp maintenance inspections of electrical and solar power equipment. CAT IV 600 V, CAT III 1000 V
• Multiple measurement functions such as current, voltage, resistance, frequency, and voltage detection
• Simultaneously measure inrush current in RMS and crest values
• Damage-resistant jaws (current sensor) provide even more years of reliable use.
• Expanded -25 °C to 65 °C operating temperature range
• IP54 dustproof and waterproof enclosure *Jaws (current sensor portion): IP50
• Automatic AC/DC function helps boost work efficiency
• Remain alert to hazards with a red backlight and beeping tone
• Measure DC voltages of up to 1700 V
DC Current range | 600.0 A/2000 A, Basic accuracy: ±1.3% rdg. ±0.3 A (600 A range) | |||||
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AC Current range | 600.0 A/2000 A (10 Hz to 1 kHz, True RMS), Basic accuracy 45 – 66 Hz: ±1.3% rdg. ±0.3 A (at 600 A) | |||||
Crest factor | 600.0 A range: 3 or less 2000 A range: 2.84 or less |
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DC+AC Current range | 600.0 A/2000 A (10 Hz to 1 kHz, True RMS), Basic accuracy DC, 45-66 Hz: ±1.3% rdg. ±1.3 A (at 600 A) | |||||
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) | |||||
Capacitance 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 to 400.0 ˚C, add temperature probe accuracy to basic accuracy of ±0.5% rdg. ±3.0 ˚C | |||||
Voltage detection | Hi: 40 V to 600 V AC, Lo: 80 V to 600 V AC, 50/60 Hz | |||||
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. |
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Other functions | DC power, Continuity check, Diode check, Automatic AC/DC detection, Pass/fail judgement function of DC A and DC V, Max/Min/Average/PEAK MAX/ PEAK MIN value display, Low-pass filter function, Display value hold, Auto hold, Back light, Auto-power save, Buzzer sounds, Zero-adjustment, etc. | |||||
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: 40 hr (without Z3210 installed), 24 hr. (with Z3210 installed and using wireless communications) Other conditions: 100 A AC measurement, backlight off, 23°C reference value |
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Core jaw diameter | φ55 mm (2.17 in), Jaw dimension: 92 mm (3.62 in) W×18 mm (0.71 in) D | |||||
Dimensions and mass | 65 mm (2.56 in) W×250 mm (9.84 in) H×35 mm (1.38 in) D mm, 530 g (18.7 oz) | |||||
Included accessories | Test Lead L9300, Carrying Case C0203, LR03 Alkaline battery ×2, Instruction Manual×2, Operating Precautions ×1 |