Description
Application
ZY9858 microhmmeter is an upgraded product for our unique Kelvin bridge, which is based on bridge circuit and select built-in precision standard resistor as reference. It not only possess the characteristic like multi-meter – simple, fast and striking, but also maintain the advantage of bridge circuit – accurate, stable and reliable. It is suitable for accurate measurement of DC low resistance in factories, universities, colleges, metrology center, laboratories, and worksites.
Features
- Extremely wide range: from 0-2kΩ, 7 spans are available.
- Minimum resolution up to 0.1μΩ, especially suitable for accurate measurement of low resistance.
- Adopt 41/2 LED green large digit display, clear and legible.
- Main resistance element adopts manganin winding resistor, which characterized by small temperature coefficient, good stability and high accuracy.
- With RS232 interface for easy connection with computer.
Main Technical Specification
| Span | Measuring range | Resolution | Test current | Accuracy class |
|---|---|---|---|---|
| 2mΩ | 0-1.9999mΩ | 0.1μΩ | 10A | 0.5 |
| 20mΩ | 0-19.999mΩ | 1μΩ | 1A | 0.2 |
| 200mΩ | 0-199.99mΩ | 10μΩ | 1A | 0.2 |
| 2Ω | 0-1.9999Ω | 100μΩ | 100mA | 0.1 |
| 20Ω | 0-19.999Ω | 1mΩ | 100mA | 0.05 |
| 200Ω | 0-199.99Ω | 10mΩ | 10mA | 0.05 |
| 2kΩ | 0-1.9999kΩ | 100mΩ | 1mA | 0.05 |
| Display | 41/2 LED display | |||
| Power supply | AC220V 50Hz | |||
| Dimension | 360(W)x99(H)x320(D)(mm) | |||
| Weight | 10kg (approx.) | |||
