Digital DC bridge QJ57C

Digital DC bridge QJ57C

Digital DC bridge QJ57C is a new generation of wire and cable DC resistance test equipment, is a new generation of QJ44, QJ57. The bridge adopts the Σ-△ type A/D conversion principle, featuring high measurement accuracy, digital filtering, fast averaging and automatic calibration. The bridge uses a 5-digit half-LED display for direct reading of resistance measurement data.

Details About Digital DC bridge QJ57C

Standard:

GB/T3048.4-200

Technical parameters:

Range	Test current	Resolution	Measuring range	Basic error
20mΩ	1A	1μΩ	0-20.000 mΩ	± (0.1%Rx+0.15%Rm)
200mΩ	0.5A	1μΩ	0-200.000mΩ	± (0.05%Rx+0.1%Rm)
2Ω	100mA	10μΩ	0-2.00000Ω	± (0.05%Rx+0.05%Rm)
20Ω	100mA	100μΩ	0-20.0000mΩ
200Ω	10mA	1mΩ	0-200.000Ω

Remark: The 20mΩ file is displayed with 4 and a half digits (at <mΩ, the last digit of the measured value is reduced by 3 words).

The 200mΩ-200Ω file is a 5-digit display.

Specification:

Overall dimension: 383*296*166 mm
Power: AC220±22V, 50±1.5HZ
Weight: 4kg

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