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Product Name:
QJ57 DC Double Bridge

AddDate: 2014-05-16

Summary:
It’s used for testing the DC resistance, the resistivity inside metal conductor, lead resistance, dc shunt resistance, switch, electrical contact resistance of and all kinds of motor, transformer winding resistance and the temperature rise test, etc. Applicable scope: Industrial and mining enterprises, laboratory or workshop site and field work place.

Standards:
GB/T3048.4-2007

Technical parameters:
◆ Measuring range: 0.01μΩ~1.1111KΩ
◆ Accuracy: 0.05%

◆ Main parameters of every range

Range rate	Effective range(Ω)	Accuracy (%)
*103	0~1111.10	0.05
*102	0~111.110
*10	0~11.1110
*1	0~1.11110
*10ˉ1	0~0.111110
*10ˉ2	0~0.0111110	0.2
*10ˉ3	0~0.00111110	2

◆ Overall dimension: 300*250*160mm
◆ Power: Inscribed refer to zero instrument: 9V (one 6F22 battery)
◆ Inscribed bridge working power: 1.5V

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