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466 Jiangyang South Road, Zhabei District, Shanghai
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Shanghai Shengxu Electric Co., Ltd
QJ84A digital DC double arm bridge
NegotiableUpdate on 05/06
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Overview
The QJ84A digital DC double arm bridge is an ideal product for precision measurement of various types of DC low value resistors in industrial and mining enterprises, scientific research institutions, universities, and metrology departments.
Product Details
QJ84A digital DC double arm bridgeIt is an upgraded product of our factory's Kelvin bridge, which is based on bridge circuits and uses precision alloy wound resistors as the benchmark. They not only have the same simple, fast, and eye-catching features as digital multimeters. At the same time, it inherits the advantages of accurate, stable, and reliable Kelvin (double arm bridge) bridge. It is an ideal product for precision measurement of various types of DC low value resistors by industrial and mining enterprises, scientific research units, colleges and universities, and metrology departments.
Technical parameters:
measurement range |
0-20k Ω seven range range |
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*Small resolution |
1. Mu.. Omega.. |
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range |
measurement range |
resolution |
test current |
accuracy class |
20mΩ |
0-19.999mΩ |
1. Mu.. Omega.. |
1A |
0.5% |
200mΩ |
0-199.99mΩ |
10. Mu.. Omega.. |
1A |
0.1% |
2Ω |
0-1.9999Ω |
100. Mu. M |
100mA |
0.05% |
20Ω |
0-19.999Ω |
1mΩ |
100mA |
0.05% |
200Ω |
0-199.99Ω |
10mΩ |
10m A |
0.05% |
2kΩ |
0-1.9999kΩ |
100mΩ |
1m A |
0.05% |
20kΩ |
0-19.999kΩ |
1Ω |
100μA |
0.05% |
display |
4 1/2 LED digital tube |
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power supply |
AC 220V 50Hz |
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size |
(W)265 mm×(H)110 mm×(D)295mm |
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weight |
2.5kg |
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Accuracy is superior to that achieved by an external galvanometer connected to a DC resistance bridge of the same level.
Simply connect the tested resistor and select the appropriate range, without the need for manual operation during the testing process.
The fast sampling time is 0.4 seconds, and stable data can generally be displayed within a few seconds.
Featuring a 200mm large digital display, the handwriting is clear and easy to read.
The stable main reference resistor is made of precision manganese copper alloy wire winding. Stability is better than 0.02%.
ReliableQJ84A digital DC double arm bridgeThe main components are imported original and have been specially selected for aging.
