CM4373-50 AC/DC CLAMP METER
Hioki clamp meters are best-in-class measuring devices incorporating Hioki’s expertise in current sensing technology. The CM4373-50 is a 2000 A True RMS clamp meter that features stronger jaws, 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 2000 V (*1) is ideal for the clamp maintenance inspections of electrical and solar power equipment.
Basic specifications (Accuracy guaranteed for 3 years, Post-adjustment accuracy guaranteed for 3 years)
| 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 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 |
| 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 |
| 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 (Storage or measurement of current of an insulated conductor) |
| Interface | None |
| 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 |
| 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) |
| Accessories | Test Lead L9300, Carrying Case C0203, LR03 Alkaline battery ×2, Instruction Manual×2, Operating Precautions ×1 |
