| Measurement principle |
Instrument has two cores for voltage injection and current measurement. From the defined voltage and measured current, the total circuit loop resistance is calculated |
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Note: For multi grounded systems only. In a multi-grounded system, the larger the number of grounding poles, the more accurate the measured value. |
| Earthing resistance |
0.20 Ω (0.01 Ω resolution) to 1600 Ω (20 Ω resolution), 10 ranges, Zero suppression: Less than 0.02 Ω, |
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Accuracy: ±1.5 % rdg. ±0.02 Ω |
| AC Current measurement |
20.00 mA (0.01 mA resolution) to 60.0 A (0.1 A resolution), 5 ranges, Zero suppression: Less than 0.05 mA, |
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Accuracy: ±2.0 % rdg. ±0.05 mA (30 Hz to 400 Hz, True RMS), Crest factor 5.0 or less (for the 60 A range, 1.7 or less) |
| Max. allowable input |
100 A AC continuous, AC 200 A for 2 minutes or shorter (at 50/60 Hz, requires derating at frequency) |
| Max. rated voltage to earth |
600 V AC CAT IV |
| Memory function |
2000 data |
| Alarm function |
For resistance measurement and current measurement, Beeps when measured value is less than or greater than threshold |
| Other functions |
Data hold, Backlight, Filter, Auto power save |
| Display |
Digital LCD, max. 2000 dgt., Display refresh rate: 500 ms (2 times/s) |
| Waterproof and dustproof |
IP40 (EN60529) with clamp sensor closed |
| Communication interface |
N/A |
| Power supply |
LR6 (AA) alkaline battery ×2, Max. rated power: 450 mVA, Continuous use : 35 hr (in-house testing conditions) |
| Core jaw dia. |
φ 32 mm (1.26 in) |
| Dimensions and mass |
73 mm (2.87 in) W × 218 mm (8.58 in) H × 43 mm (1.69 in) D, 620 g (21.9 oz) |