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CR - Ⅲ loop resistance tester
Xian bo can produce CR - Ⅲ loop resistance tester is according to GB/T11022-1999, USES the international fashion dc voltage drop method (switch power supply) to measure the high voltage switch contact resistance and loop resistance and the development and production, its high quality dc characteristics ensure the measurement accuracy and stability.
The instrument using pulse width modulation high frequency switch power supply to provide more than 100 A test current, when press measuring key, high frequency switch power supply output more than 100 A more test current, at the same time sampling circuit start sampling, achieved by signal amplifier amplification, by the A/D converter convert an analog signal into A digital signal, the microprocessor in the data filtering, arithmetic, processing, and finally send display shows the measurement of current and resistance.
A, product features
1, this product all intelligent, but just need to press the measuring key, then you can get measured equipment loop resistance value and through which the current value.
2, four wire measurement, measured equipment loop resistance value and the current value through independent.
3, wide measuring range, 0-4000 μ Ω. The first range is 0-400 μ Ω, the second range for 401-4000 μ Ω.
4, automatic switching range.
Second, the products main technical index and parameter
1, environment temperature: room temperature, without strong electromagnetic interference occasion.
2, relative humidity: < 85% RH
3, measurement range: 0-4000 μ Ω.
4, display mode: current and resistance are four digital display.
5, minimum resolution: 0.1 u Ω.
6, measurement error: < 1%
7, testing power supply: AC 220 v - 10% of the 50 hz
8, test current: > 100 a
9, physical size: 410 x 270 x 210 mm
Contact:
Telephone; 029-84683900 84683920
Fax: 029-84683769
Address: xi an electronic three LuXiJing international electrical center
Zip code: 710082
mail:xabn2008@163.com