QJ44E Portable Double Bridge

Description

Application

QJ44E double bridge is portable DC double bridge designed on Kelvin bridge circuit. With built-in null indicator and cell box, it is suitable for accurate measurement on DC low resistance below 11Ω in the factories, laboratories, and field workplace as well.

It can be used to measure DC resistance of electric motors, power transformer winding, electric conductivity of metal, contact resistance of electric brush and switches, and carry out temperature rise test.

Main Technical Specification

1. Measuring range: 0.01mΩ ~ 11.000Ω
2. Accuracy : 0.05%
3. Main Parameter under each range

   Multiplying power	Range	Resolution	Accuracy class
   x 10-2	0.01~1.1000mΩ	0.5μΩ	1
   x 10-1	0.1~11.000Ω	5μΩ	0.5
   x 1	1~110.00Ω	50μΩ	0.2
   x 10	0.01~1.1000Ω	500μΩ	0.2
   x 102	0.1~11.000Ω	5mΩ	0.2

4. Power Supply: built-in null indicator power supply 9V (6F22 laminated cell 2pcs)

       built-in bridge power supply 1.5V (D size cell 6pcs)

5. Dimension: 320 x 280 x 170(mm)
6. Weight: 5kg (approx)