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HIOKI - AC Clamp Meter CM3281, CM3291
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HIOKI - AC Clamp Meter CM3281, CM3291
Brand: Hioki
Model: CM3281, CM3291
Specifications
Basic accuracy figures for measurement ranges are indicated in parentheses. Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year, Product warranty period is 3 years.
Brand: Hioki
Model: CM3281, CM3291
Specifications
Basic accuracy figures for measurement ranges are indicated in parentheses. Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year, Product warranty period is 3 years.
| AC measurement method | CM3281: MEAN Value CM3291: True RMS |
| Core jaw diameter | Φ 46 mm (1.81 in) |
| Max. rated voltage to earth |
Jaw: CAT IV 300 V, CAT III 600 V Voltage measurement terminal: CAT III 300 V, CAT II 600 V |
| AC current | 42.00 A/ 420.0 A/ 2000 A (±1.5% rdg.±5 dgt.) |
| Frequency charac- teristics |
CM3281: 50 Hz to 60 Hz CM3291: 40 Hz to 1 kHz |
| AC voltage | 4.200 V to 600 V, 4 ranges (±1.8% rdg.±7 dgt.) |
| Frequency charac- teristics | 45 Hz to 500 Hz |
| DC voltage | 420.0 mV to 600 V, 5 ranges (±1.0% rdg.±3 dgt.) |
| Resistance | 420.0 Ω to 42.00 MΩ, 6 ranges (±2.0% rdg.±4 dgt.) |
| Continuity check |
420.0 Ω (±2.0% rdg.±4 dgt.) Threshold of buzzer sound 50 Ω ±40 Ω or less |
|
Crest factor (Only for CM3291) |
2.5 at 2500 count or less (linearity reduced to 1.5 or less at 4200 counts), (1.5 or less at 2000 A range) |
| Display refresh rate | 400 ms |
| Operating temperature and humidity | −25°C to 65°C (−13°F to 149°F), 80% RH or less (no condensation) |
| Storage temperature and humidity | −25°C to 65°C (−13°F to 149°F), 80% RH or less (no condensation) |
| Drop-proof distance | 1 m (3.28 ft) onto concrete |
| Standards | Safety: EN 61010, EMC: EN 61326 |
| Functions | Data hold, Auto power-saving function |
| Power supply | Coin type lithium battery CR2032 × 1 |
| Continuous use | CM3281: 120 hours, CM3291: 70 hours |
| 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) |
| Accessories | Carrying Case, Test Lead L9208, Coin type lithium battery CR2032, Instruction Manual, Operating Precautions |