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Hioki 3157-01 Probador de tierra

Hioki 3157-01
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Código del Producto: 3157-01


Hioki 3157-01AC Grounding HiTester

Designed to measure whether the metal enclosure of electrical equipment is connected to the ground terminal at sufficiently low resistance levels. It also can be used to evaluate the grounding conditions of large-scale electrical installations. Measurement is carried out by using a high current according to the specifications of the measurement object, and determining the voltage drop at the measurement point. Reference values are as set out in the various safety standards. The 3157-01 can carry out measurements in accordance with the stipulations of multiple standards.


Measurement items

Low resistance, AC 4-terminal method

Generator section

Current generator principle:PWM constant current control
Current setting range: 3.0 A to 31.0 A (0.1 A resolution), into 0.1 Ohm load
Maximum output power: 130 VA*1 (at output terminals)
*1 Subject to derating according to ambient temperature (80 % at 40
Frequency: 50 Hz or 60 Hz sine wave
Soft start function: Apply current only after checking load connection

Monitor section

Resistance measurement:0 to 1.800 Ohm (0.001 Ohm resolution)
Accuracy: ±2 % rdg. ±4 dgt. (after zero-adjust)
Current monitoring range: 0 to 35.0 A AC (0.1 A resolution)
Monitoring cycle: 2 times/second

Other functions

Timer setting:Counts down time after start until preset time, or shows elapsed time after start
Setting range: 0.5 to 999 second
Comparator: Pass/Fail evaluation using preset upper/lower limit, I/O output
Memory function: max. 20 settings (with save/load)


Fluorescent tube digital display

Power supply

100 to 120 V, 200 to 240 V AC (auto-switching), 50/60 Hz

Dimensions, mass

320 mm(12.60 in)W × 90 mm(3.54 in)H × 263 mm(10.35 in)D, 7 kg (246.9 oz)



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