HIOKI 3157-01 AC Grounding HiTester

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1 piece
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base price
Item available at short notice. Delivery Time ~10-25 workdays
Item available at short notice. Delivery Time ~10-25 workdays
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Benefits of the 3157-01 Protective Ground Tester for Standards Certification

  • Ground bond safety tester in compliance with international safety standards and laws.
  • 0 to 1.8 Ω measurement, testing current up to 31 A.
  • Feedback control system: Stable current even with a fluctuating load.

HIOKI 3157-01 AC Grounding Tester

The Hioki 3157 is an AC ground bond tester. The device is used for protection circuit testing of a wide range of electrical equipment, including industrial machinery, medical equipment, and measuring instruments using a constant current system, enabling it to provide stable output current.

  • AC grounding/protective ground tester.
  • 0 to 1.8 Ω measurement.
  • Testing current up to 31 A, for 100 to 120 or 200 to 240 VAC.
  • Easily perform protective continuity testing in compliance with international safety standards and laws:
    1. Protective continuity resistance measurement for medical devices and general electrical devices).
    2. HGround connectivity testing when installing electrical machine tools and distribution panels.
    3. Testing of protective grounding and isopotential grounding work for medical equipment.
    4. Evaluation of contact status using large currents.
  • Feedback control system that is capable of applying a stable current even with a fluctuating load.
  • Soft-start function that checks the connection to the device under test before applying the current.

Model Overview

ModelHIOKI 3157-01
Basic functionsAC 4-terminal method resistance measurement
DisplayFluorescent tube (digital display)
Current setting range3.0...31.0 AAC (0.1 A resolution), into 0.1 Ω load
Max. output power130 VA (at output terminals)
Open-terminal voltageMax. 6 VAC
Generator frequency50...60 Hz sine wave (selectable)
Resistance measurement0...1.800 Ω (0.001 Ω resolution), accuracy: ±2% rdg. ±4 dgt. after zero-adjust
Voltage measurement0...6.00 VAC (single range 0.01 V resolution), accuracy: (1% rdg. +5 dgt.)
Monitor section0...35.0 AAC/0...6 VAC, refresh rate: 2 times/s
Timer displayCounts down time after start until preset time, shows elapsed time after start
Timer setting0.5...999 s
ComparatorPASS/FAIL evaluation using preset upper/lower limit, buzzer sound, signal output
Memory functionMax. 20 settings (with save/load)
InterfacesEXT I/O, EXT SW, option: GPIB or RS232C
Power supply100...120 V/200...240 VAC (switching, 50/60 Hz)
Dimensions (mm)320 x 90 x 263; 7 kg
Required additional (optional) probes2x current probe 9296, or 1x current probe 9296 and 1x current apply probe 9297, depending on measurement application

Included: HIOKI 3157, power cord, instruction manual, spare fuse (inlet), 2x shorting bar.


Information on product safety:

Manufacturer:
HIOKI E.E. Corporation, 81 Koizumi Ueda, Nagano 386-1192/JPN
www.hioki.com
(EU branch Germany)