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Hioki ST5520 Insulation Tester
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Hioki ST5520 Insulation Tester
The Hioki ST5520 Insulation Tester is a high-performance device designed for accurate and reliable insulation resistance testing. Known for its precision and durability, the ST5520 is widely used in electrical and electronic industries to ensure the safety and integrity of various components and systems.
The Hioki ST5520 Insulation Tester is a versatile, reliable, and precise tool that is indispensable for professionals in the electrical and electronic industries, ensuring the safety and efficiency of various systems and components.
Hioki ST5520 Key Features
- Rapidly assess in as fast as 50 ms
- Quick discharge of residual voltage
- Freely configurable test voltage
- Contact check function
- Short-circuit check function
Hioki ST5520 Specifications
| Measurement Items | Insulation resistance (Applied DC voltage method) |
|---|---|
| Testing Voltage (Measurement Range) | AUTO/MANUAL setting is possible 25 V ≤ V < 100 V (2.000/20.00/200.0 MΩ) 100 V ≤ V < 500 V (2.000/20.00/200.0/2000 MΩ) 500 V ≤ V ≤ 1000 V (2.000/20.00/200.0/4000 MΩ) |
| Basic Accuracy | ±2 % rdg. ±5 dgt. 25 V ≤ V < 100 V [0 to 20 MΩ] 100 V ≤ V < 500 V [0 to 20 MΩ] 500 V ≤ V ≤ 1000 V [0 to 20 MΩ] |
| Measurement Speed | Fast: 30 ms/time, Slow: 500 ms/time (selectable) |
| Display | LCD (service life: 100,000 hours), 4-level backlight |
| Internal Memory | Saved items include rated measurement voltage, comparator upper limit/lower limit values, test mode, beep sound to distinguish the result, test time, response time, resistance range, measurement speed Memory capacity: up to 10 items (can be saved/loaded) |
| Comparator Setting | UPPER_FAIL: Measured value ≥ upper limit value PASS: Upper limit value > measured value > lower limit value LOWER_FAIL: Measured value ≤ lower limit value |
| Judgement Process | Beep sound, PASS / U.FAIL/L. FAIL: light up on LED display, When UL_FAIL, U.FAIL / L.FAIL light up simultaneously, EXT.I/O output, judgement result can be obtained via RS-232C |
| Test Duration | Definition of test duration: Test duration = Response time + Measurement time Function: Set the time from voltage application until pass/fail assessment Configuration range: 0.045 s to 999.999 s (0.001 s resolution) |
| Response Time Timer | After the start of the test, comparator judgment operation can be prohibited until a set interval from 0.005 sec. to 999.999 sec. (at 0.001 sec. resolution) has passed. |
| Analog Output | DC +4 V f.s. |
| Interface | RS-232C (standard), External I/O (External control input, Judgment result), BCD output (ST5520-01 only) |
| Power Supply | 100 to 240 V AC, 50/60 Hz, 25 VA max. |
| Dimensions and Mass | 215 mm (8.46 in) W × 80 mm (3.15 in) H × 166 mm (6.54 in) D, 1.1 kg (38.8 oz) |
| Included Accessories | Instruction Manual ×1, Power cord ×1, EXT. I/O Connector ×1, Connector Cover ×1 |
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Hioki ST5520 Insulation Tester
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