Product Introduction:
The micro-ohmmeter developed by Wuhan UHV complies with the implementation standard DL/T 845.4-2004 of the People's Republic of China. It integrates high-frequency switching power supply technology with digital circuit technology, making it well-suited for measuring the contact resistance of switching control equipment.
The instrument operates at a DC test current of 100A, as recommended by the national standard, and directly measures circuit resistance under this current condition, displaying results digitally. With high accuracy and reliable stability, it meets the requirements for both high-voltage switch maintenance and factory-circuit resistance testing of high-voltage switches.
Technical parameters:
| Faixa de medição | 1～1999μΩ |
| Resolução | 1mΩ |
| Corrente de teste | DC 6-100A |
| Precisão | 0,5%±1d |
| Operating mode | Contínuo |
| Modo de exibição | 3.5-digit LED display |
| Fonte de energia | AC220V±10% 50Hz |
| Ambiente de trabalho | Temperature: -10℃~40℃, humidity: ≤80%RH |
| Dimensão | 390×300×150mm3 |
| Peso | 6kg(excluding attachments) |
Product Features:
1、High-Current Capability
Utilizing advanced switching power technology, the micro-ohmmeter delivers a sustained high-current output. This overcomes the limitation of transient pulse currents typical of conventional power supplies. The continuous high current effectively breaks through the oxide film on switch contacts, ensuring accurate and reliable test results.
2、Excellent Anti-Interference Performance
The instrument exhibits strong resilience against electromagnetic interference. Even in environments with significant interference, the last digit of the LCD readout remains stable within a range of ±1 count. This ensures stable readings and delivers excellent measurement repeatability.
3、Durable and Stable Design
Built for longevity and precision, the micro-ohmmeter employs high-accuracy resistors which minimize the impact of ambient temperature variations on measurement results. Furthermore, the use of military-grade connectors significantly enhances its robustness and resistance to vibration.
4、Portable and User-Friendly
Designed with field use in mind, the device features a compact form factor and light weight, making it highly portable and convenient for on-site testing.
