| 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 &Times;2, Max. Rated Power: 450 mVA, Continuous use : 35 hr (in-house testing conditions) |
| Core jaw dia. |
φ 32 mm (1.26 in) |
| Dimension and mass |
73 mm (2.87 in) W &Times; 218 mm (8.58 in) H &Times; 43 mm (1.69 in) D, 620 g (21.9 oz) |