| Customization: | Available |
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| After-sales Service: | Online |
| Warranty: | 1 Year |
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Transformer contact digital withstand voltage test bridge resistance meter/Dc resistance tester
Product overview
Kdkr-3a DC resistance rapid tester is a high-precision replacement product for DC single and double arm Bridges. The switching power supply technology used by the instrument, its measurement speed is more than one hundred times faster than the bridge, the display part consists of four half LCD liquid crystal display measurement results, three half LCD liquid crystal display ambient temperature or test current value, to overcome the shortcomings of other similar products by LED display value in the sun inconvenient reading, and has the automatic arc elimination function. The instrument has the advantages of fast measurement speed, high precision, intuitive display, strong anti-interference ability, small size, power consumption, stable and reliable test data, and is not affected by human factors. The instrument is equipped with a rechargeable battery pack (12V), which can be used both by AC and DC for on-site and field testing.
This product meets the requirements of DLT 845.3-2004 "General Technical Conditions for resistance measuring devices Part 3 DC Resistance Tester".
Product use
It is an instrument for measuring the DC resistance of various inductive loads such as power transformers, large motors, transformers and low voltage switch contact resistance, wire and cable or weld interface resistance.
Transformer contact digital withstand voltage test bridge resistance meter/Dc resistance tester
Performance characteristics
Fast test speed: the maximum output charging current of the instrument can reach 3A, and the measurement can effectively compensate the current inertia of large inductance equipment, accelerate the core saturation, thereby shortening the charging time and improving the test speed, which is hundreds of times faster than the traditional instrument single and double arm bridge.
High accuracy: In addition to the four-terminal measurement method, the instrument also adopts the constant current power supply technology, which makes the charging current of the inductive load remain at a relatively stable value, and the anti-inductive ability is stable and the anti-interference ability is strong, thus ensuring the measurement accuracy. And the use of imported high-quality components, the measurement results are high accuracy, good repeatability.
Wide measuring range: resistance measuring range is 1μΩ ~ 2KΩ, wide measuring range.
Ac and DC dual use: the instrument is equipped with rechargeable battery pack, AC and DC power supply, portable design, easy to use and carry.
Transformer contact digital withstand voltage test bridge resistance meter/Dc resistance tester
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Conditions of use |
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Ambient temperature |
0ºC ~ 40ºC |
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Relative temperature |
≤ 85%RH |
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the measuring range is set up six ranges, respectively |
1μΩ ~ 20mΩ; 20 mΩ ~ 200mΩ; 0.2Ω ~ 2Ω; 2Ω ~ 20Ω; 20Ω ~ 200Ω; 200Ω to 2kΩ. |
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measurement accuracy |
0.2 |
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the highest resolution |
1μΩ |
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constant current source |
3A (1μΩ ~ 20mΩ, 20Mω ~ 200mΩ, 0.2Ω ~ 2Ω); 200mA(2Ω ~ 20Ω); 20mA (20Ω ~ 200Ω); 2mA (200Ω ~ 2kΩ). |
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Working voltage |
Dc: 11V ~ 14V; Ac: 220V. |
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power consumption |
≤15W |
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Overall size |
335×275×175mm3 |
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Weight |
5kg (including test clamp and test wire) |
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