| Digital Transformer Winding DC Low Resistance Measuring Instrument |
CN251X Series Intelligent DC Low Resistance Tester is an instrument for testing all kinds of DC resistance of transformers, motors, switches, relays, connectors and so on.
The instrument has the advantages of wide measuring range, high precision and fast speed. The instrument adopts high-precision constant current flow through the measured parts and five-end measurement effectively deducts the lead error, which is suitable for users to make high-precision measurements; at the same time, the instrument has increased the sorting function, and the user can directly set the upper and lower limit values of the resistance or the percentage error for sorting, which greatly improves the speed of the testing of the same kind of products.
Measuring range and accuracy:
| Measurement |
Parameters |
Measurement |
Range |
Measurement |
| Voltage (DC) |
(0.80~300.0)V |
±(0.4%reading +0.1% range) |
0.01V |
±320V |
Current (DC)
|
(0.050~50.00)A |
<10A 0.001A
≥10A 0.01A
≥100A 0.1A
≥1000A 1A |
±52.5A |
| 75mV |
1.05 times |
| power |
U*I |
|
<1000W 0.1W≥1000W1W
≥2kW 10W |
|
Main performance and technical indicators:
1,Display: display the resistance value with five digits, only four digits are displayed when the first digit is greater than 4;
Display the percentage by four digits plus one symbol bit, the range is ±0.01%~±9999%.
2,Measuring range:2511:10uΩ~20.000KΩ;
2512: 10uΩ~2.0000MΩ;
Display: over-range display: UUUUU.
3, test speed: slow (6 times / sec), fast (10 times a second).
4, gear selection: automatic or manual.
5, power supply: 50/60Hz AC220V ± 5%.
6, the operating environment: temperature: 0 ºC ~ 40 ºC, RH ≤ 80%.
7, remote control interface: optional.
8,Communication interface: optional.
| Resistance Measurement Range |
20 mΩ |
200 mΩ |
2 Ω |
20Ω |
200Ω |
2 KΩ |
20KΩ |
200KΩ |
2 MΩ |
| accuracy |
2511 |
0.2%±3 |
0.1%±3 |
|
| 2512 |
0.2%±3 |
0.1%±3 |
0.05%±3 |
0.1%±3 |
| 2512B |
0.05%±3 |
|
| Test Current |
2511 |
100mA |
100 mA |
100mA |
10mA |
1mA |
100uA |
100uA |
|
| 2512 |
1 A |
10uA |
1uA |
| 2512B |
|
| Readout Resolution |
2511 |
10uΩ |
10uΩ |
100uΩ |
1 mΩ |
10mΩ |
100mΩ |
1Ω |
|
| 2512 |
1uΩ |
10Ω |
100Ω |
| 2512B |
|
| open circuit voltage |
2511 |
<1.0 V |
<5.0 V |
|
| 2512 |
<5.0 V |
| 2512B |
<5.0 V |
|
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