Large Jaw Lets You Clamp with Ease, Measure thick cables right at the terminal
Hioki clamp meters are best-in-class measuring devices incorporating Hioki’ s expertise in current sensing technology. The CM3281 is an average rectified 2000 A AC clamp meter that features a broad operating temperature range of -25°C to 65°C, thin and compact clamp core and optional flexible current sensor that you can attach to let you get into the tightest spots.
CAT IV 300 V
CAT III 600 V
| CM3281 | Average rectified |
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FEATURES
When connected to an optional flexible current sensor*, the CM3281 can be used to measure the current flowing in pairs of wires or in tangled or complexly routed wires around which it was not possible to apply a clamp-on sensor in the past.
* AC FLEXIBLE CURRENT SENSOR CT6280 (4200 A AC, Φ130 mm)
The CM3281 delivers all the functionality of a clamp meter and card tester in the form factor of the latter. In addition to current measurement, this single instrument delivers voltage measurement, continuity check, and resistance measurement functionality.
Despite its thin, compact design, the CM3281 has an operating temperature range of -25°C to 65°C and can withstand being dropped from a height of 1 m onto concrete. It’s engineered for use in tough environments.
All accessories can be stored.
| AC Current range | 42.00 to 2000 A, 3 ranges (50 Hz to 60 Hz, Average rectified), Basic accuracy 50-60 Hz: ±1.5% rdg. ±5 dgt. |
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| DC Voltage range | 420.0 mV to 600 V, 5 ranges, Basic accuracy: ±1.0 % rdg. ±3 dgt. (at 4.2 V range) | |||||
| AC Voltage range | 4.200 V to 600 V, 4 ranges (45 to 500 Hz, Average rectified), Basic accuracy 45-66 Hz: ±1.8% rdg. ±7 dgt. (at 4.2 V range) |
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| Resistance range | 420.0 Ω to 42.00 MΩ, 6 ranges, Basic accuracy: ±2.0 % rdg. ±4 dgt. (at 420 Ω range) | |||||
| Other functions | Continuity check: Buzzer sounds at 50 Ω ±40 Ω or less, Data hold, Auto power save, Drop-proof from height of 1 meter | |||||
| Power supply | Coin type lithium battery (CR2032) ×1, Continuous use 120 hours | |||||
| Core jaw diameter | φ 46 mm (1.81 in), Jaw dimension: 65 mm (2.56 in) W × 13 mm (0.51 in) D | |||||
| Dimensions and mass | 57 mm (2.24 in) W × 198 mm (7.80 in) H × 16 mm (0.63 in) D, 103 g (3.6 oz) | |||||
| Included accessories | Carrying case ×1, TEST LEAD L9208 ×1, Coin type lithium battery CR2032 (for trial purposes only) ×1, Instruction manual ×1, Download guide ×1, Operating precautions ×1 | |||||
| Core jaw dia. | φ 130 mm (5.12 in) (Cable cross-section diameter: 5 mm (0.20 in); tip cap diameter: 7 mm (0.28 in)) | |||||
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| AC Current | 419.9 A/ 4199 A, 2 ranges (±3.0 % rdg. ±5 dgt.) | |||||
| Cable length | 800 mm (31.5 in) | |||||
