HIOKI FT6380 CLAMP ON EARTH TESTER

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  

Model FT6381 only: Bluetooth® v2.1+EDR, Compatibility for Smartphone / Tablet, Displays measured values on the screen of an Android™ handset via Bluetooth®, Applicable OS: Android™ 2.1 or later

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

Introduction Hioki FT6380 Clamp On Earth Tester

The FT6381 measure grounding resistance simply by clamping to multiple-grounded ground wires. No auxiliary grounding rod is needed, and there is no need to disconnect the ground wire from the grounding rod. The compact, low-profile sensor can be used to clamp ground wires with ease, and also provide AC current measurement functionality and can measure currents ranging from leakage current on the order of several mA to load currents of up to 60 A.

CAT IV 600V