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

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 range

0.20 Ω (0.01 Ω resolution) to 1600 Ω (20 Ω resolution), 10 ranges, Zero suppression: Less than 0.02 Ω,

Accuracy: ±1.5 % rdg. ±0.02 Ω

AC Current range

20.00 mA (0.01 mA resolution) to 60.0 A (0.1 A resolution), 5 ranges, Zero suppression: Less than 0.05 mA,

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)

Accessories

Carrying case ×1, Resistance check loop (1 Ω, 25 Ω) ×1, Strap ×1, LR06 (AA) alkaline battery ×2, Instruction manual ×1