| JYR-50B/40B/20B DC Resistance Tester |
The JYR (50B) / JYR (40B) / JYR (20B) DC Resistance Tester adopts third-generation constant current power supply technology, with higher efficiency, longer lifespan, high output voltage (DC30V), fast charging speed, wide measurement range, and color LCD display.
Function Introduction
● Adopts third-generation constant current source technology, higher efficiency, longer lifespan
● Measurement range 0～30Ω
● Instrument charging voltage increased to 30V, faster charging speed
● Has inductive test object anti-break arc protection function
● Has misconnection AC380V protection function
● Has audible discharge alarm, clear discharge indication
Technical Specifications
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Configuration |
50B |
40B |
20B |
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Applicable Scope |
DC resistance measurement of large and medium-sized transformers |
DC resistance measurement of large and medium-sized transformers |
Suitable for DC resistance measurement of all transformers below 240MVA |
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Output Current |
50A, 20A, 10A, 3A, 1A |
40A, 20A, 10A, 3A, 1A |
20A, 10A, 3A, 1A |
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Measurement Range |
0～30Ω |
0～30Ω |
0～30Ω |
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Accuracy |
0.2%±0.2μΩ |
0.2%±0.2μΩ |
0.2%±0.5μΩ |
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Minimum Resolution |
0.1μΩ |
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Output Voltage |
DC30V |
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Working Power Supply |
AC220V±10%, 50Hz±1Hz |
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Working Temperature |
-20℃～40℃ |
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Working Humidity |
≤80%RH, No condensation |
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