The HZC-2A transformer DC resistance tester (micro-ohmmeter) is a replacement product for DC single and double arm bridges. The instrument adopts switching power supply technology, with a four-and-a-half-digit LCD displaying measurement results and a three-and-a-half-digit LCD displaying ambient temperature or test current value, overcoming the disadvantage of other similar products with LED displays that are difficult to read in sunlight, and also has an automatic arc suppression function. This instrument has the advantages of fast measurement speed, high accuracy, intuitive display, strong anti-interference capability, small size, low power consumption, stable and reliable test data, and is not affected by human factors. It is an ideal instrument for measuring various inductive load resistances such as power transformers, low-voltage switch contact resistance, wire and cable or weld joint resistance, and its measurement speed is more than a hundred times faster than a bridge. The instrument is equipped with a built-in rechargeable battery pack (12V), suitable for both AC and DC, convenient for on-site and field testing.
1. Operating conditions:
Ambient temperature: 0℃～40℃
Relative humidity: ≤85％RH
2. Measurement range: 1mΩ～20mΩ;20～200mΩ;0.2～2Ω;
20～200Ω;200Ω～2kΩ
3. Measurement accuracy: 0.5 class
4. Resolution: 1μΩ
5. Constant current source: 2A (1uΩ～2Ω), 0.2A (2Ω～200Ω),
0.02A (20Ω～2000Ω)
6. Operating voltage
DC 11V～14V, AC 220V.
7. Power consumption: ≤15W
8. Dimensions: 335×275×175mm
9. Weight: 2.8kg
