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 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 | |||||
| Comparator | PASS/FAIL evaluation using preset upper/lower limit, buzzer sound, signal output | |||||
| Memory function | Max. 20 settings (with save/load) | |||||
| Interfaces | EXT I/O, EXT SW, GP-IB or RS-232C (option) | |||||
| Power supply | 100 to 120 V/200 to 240 V AC (switching, 50/60 Hz) | |||||
| Dimensions and mass | 320 mm (12.60 in)W × 90 mm (3.54 in)H × 263 mm (10.35 in)D, 7 kg (246.9 oz) | |||||
| Included accessories | Power cord ×1, Instruction Manual ×1, Spare | |||||
