FT6380 / HIOKI แคลมป์มิเตอร์ Clamp On Earth Tester

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HIOKI

FT6380 / HIOKI แคลมป์มิเตอร์ Clamp On Earth Tester วัดความต้านทานดิน, AC Current ขนาดกะทัดรัด ใช้งานง่าย

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ft6380 hioki แคลมป์มิเตอร์ clamp on earth tester clamp meter

แคลมป์มิเตอร์ FT6380

Clamp On Earth Tester

Overview

The FT6380 measures 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.

Key Features

• Earth resistance measurement for multi-grounded systems

• Measure leak current with absolute certainty with highly sensitive 0.01 mA resolution (at 20.00 mA range)

• Measure load current up to 60.0 A range

• Clamp at the narrowest point

Specifications

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	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 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, 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