ND25 Series Analog Insulation Resistance Tester
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Product Details
■Product Overview
The pointer-type insulation resistance tester is designed for insulation testing of high-voltage electrical equipment, including cables, transformers, power capacitors, and high-voltage switches. Powered by batteries, this instrument boasts a compact size, light weight, and portability. Its built-in automatic range‑switching circuit significantly extends the upper limit of measurement. A rugged, molded housing serves as an essential accessory; all probe housings are made of tightly sealed plastic, ensuring excellent sealing and water resistance.
■Product Specifications
Model number | 2550 | 2551 | 2552 | 2553 | 2554 | 2555 | 2556 |
Output voltage
| 250V/0~100GΩ; 5000V/0~200GΩ;
| 500V/0~20GΩ; 1000V/0~40GΩ: 2500V/~100GΩ | 2500V/~100GΩ; 5000V/0~200GΩ | 500V/0~20GΩ; 1000V/0~40GΩ: 2500V/~100GΩ 5000V/0~200GΩ | 2500V/~100GΩ 5000V/0~200GΩ 10000V/0~400GΩ:
| 250V/0~10GΩ; 500V/0~20GΩ; 1000V/0~40GΩ: 2500V/~100GΩ 5000V/0~200GΩ | 5000V/0~200GΩ 10,000 V / 0~400 GΩ |
Screen display | Pointer | Dual display | Digital, analog pointer | ||||
Short-circuit current | 1 mA | 3.3mA | 1 mA | 3.3mA | |||
Storage | None | Parameter Storage | |||||
Index Testing | None | Absorption ratio, polarization index | None | Absorption ratio, polarization index | |||
Power supply | 8 Festival AA Type battery | AC/DC dual-use with rechargeable battery | |||||
Service system
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Power Technology
2016-04-05
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