Hioki True RMS 2000 A AC/DC Clamp Meter CM4373

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 (*1) is ideal for the clamp maintenance inspections of electrical and solar power equipment.

CAT IV 600 V, CAT III 1000 V

Key Features

• Multiple measurement functions

• Automatic AC/DC function helps boost work efficiency

• Measure DC voltages of up to 1700 V (*1)

• Simultaneously measure inrush current in RMS and crest values

• Expanded -25 °C to 65 °C operating temperature range

• IP54 dustproof and waterproof enclosure *Jaws (current sensor portion): IP50

DC Current range: 600.0 A/2000 A, Basic accuracy: ±1.3% rdg. ±0.3 A (600 A range)

AC Current range: 600.0 A/2000 A (10 Hz to 1 kHz, True RMS), Basic accuracy: ±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

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 1500 V (*1), 5 ranges, Basic accuracy: ±0.5% rdg. ±0.5 mV (at 600 mV)

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. ±0.013 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. ±0.023 V (at 6 V)

Resistance range: 600.0 Ω to 600.0 kΩ, 4 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

Other functions: Automatic AC/DC detection, Plus/Minus judgement function of DC A, DC V, Max/Min/Average/PEAK MAX/ PEAK MIN value display, Filter function, Display value hold, Auto hold, Back light, Auto-power save, Buzzer sounds, Zero-adjustment

Dustproof, waterproof: Grip: IP54 (when measuring an insulated conductor only), Jaw (the current sensor portion of the instrument)/ barrier: IP50 *Risk of electric shock from the conductor being measured increases when wet.

Power supply: LR03 Alkaline battery ×2, Continuous use 45 hr (Backlight OFF)

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)