Hioki-3157-01 AC GROUNDING HiTESTER
Protective Ground Tester Indispensable for Standards Certification
Key Features and Functions
- Easily perform protective continuity testing in compliance with international safety standards and laws
- Protective continuity resistance measurement for medical devices and general electrical devices
- Ground connectivity testing when installing electrical machine tools and distribution panels
- Testing of protective grounding and isopotential grounding work for medical equipment
- 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
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The Hioki 3157 is an AC ground bond tester designed 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.
Basic specifications
- Basic functions: AC 4-terminal method resistance measurement
- Display: Fluorescent tube (digital display)
- Current setting range: 3.0 A to 31.0 A AC (0.1 A resolution), into 0.1Ω load
- Max. output power: 130 VA (at output terminals)
- Open-terminal voltage: Max. 6 V AC
- Generator frequency: 50 Hz or 60 Hz sine wave (selectable)
- Resistance measurement: 0 to 1.800 Ω (0.001 Ω resolution), Accuracy: ±2% rdg. ±4 dgt. after zero-adjust
- Voltage measurement: 0 to 6.00 V AC (single range 0.01 V resolution), Accuracy: (1 % rdg. +5 dgt.)
- Monitor section: 0 to 35.0 A AC/ 0 to 6 V AC, Refresh rate: 2 times/s
- Timer display: Counts down time after start until preset time, Shows elapsed time after start
- Timer setting: 0.5 s to 999 s
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Description
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The Hioki 3157 is an AC ground bond tester designed 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.
Basic specifications
- Basic functions: AC 4-terminal method resistance measurement
- Display: Fluorescent tube (digital display)
- Current setting range: 3.0 A to 31.0 A AC (0.1 A resolution), into 0.1Ω load
- Max. output power: 130 VA (at output terminals)
- Open-terminal voltage: Max. 6 V AC
- Generator frequency: 50 Hz or 60 Hz sine wave (selectable)
- Resistance measurement: 0 to 1.800 Ω (0.001 Ω resolution), Accuracy: ±2% rdg. ±4 dgt. after zero-adjust
- Voltage measurement: 0 to 6.00 V AC (single range 0.01 V resolution), Accuracy: (1 % rdg. +5 dgt.)
- Monitor section: 0 to 35.0 A AC/ 0 to 6 V AC, Refresh rate: 2 times/s
- Timer display: Counts down time after start until preset time, Shows elapsed time after start
- Timer setting: 0.5 s to 999 s
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