Hioki 3157 adalah tester ikatan tanah AC yang dirancang untuk pengujian rangkaian perlindungan berbagai peralatan listrik, termasuk mesin industri, peralatan medis, dan instrumen pengukuran menggunakan sistem arus konstan, memungkinkannya untuk memberikan arus keluaran yang stabil.
| 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) |
| Accessories | Power cord ×1, Instruction Manual ×1, Spare fuse (inlet) ×1, Shorting bar ×2 |
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