Product Details

Active Transformer DC Resistance Tester Manufacturer is specially designed for small and medium-sized transformers, it consists of a constant current power supply and a voltage signal detection part, with simple testing method, stable and reliable. Five-digit liquid crystal display, high measurement accuracy, convenient reading. The output current gear is adjustable, suitable for DC resistance measurement of various small and medium-sized transformers.

 Active Transformer DC Resistance Tester Manufacturer has a built-in rechargeable battery, can be used when there is no AC power supply.

2. Main Technical Indicators

1. Power supply voltage: single-phase AC 220V±10%    50Hz

2. Power consumption: ≤100W

3. Output current: 10A, 2A, 1A, 0.1A

4. Measurement range:

10A: 1mΩ～200mΩ

2 A: 1mΩ～12000mΩ

1 A: 0.5Ω～24Ω

0.1A: 1Ω～240Ω

5. Accuracy: ±0.2%

6. Resolution: 0.1μΩ

7. Ambient temperature: 0～40℃

8. Ambient humidity: ≤85%

9. Weight: 7kg

10. Dimensions: 305×205×345mm³

3. System Description

·AC 220V power socket and switch

Switch controls the power on/off of the whole machine, does not control the power cord and charging circuit.

AC 220V power socket, with fuse, breaking current 2A, connect the power cord, the instrument charges; the instrument works under AC power.

·Reset key

Press this key to put the machine in initial state.

·Select key

After reset, press this key to select output current.

·Measure key

After selecting output current, press this key, the microcomputer controls to realize the whole testing process.

During testing, press this key to achieve continuous testing without power off, suitable for measuring each tap of on-load transformer.

·Charge/discharge indicator

During testing, it indicates the measurement current magnitude. After testing, press reset key, the meter needle slowly returns to zero with the discharge process.

·I+, V+

I+ is the positive output current terminal, V+ is the positive input voltage terminal.

·I-, V-

I- is the negative output current terminal, V- is the negative input voltage terminal.

·mΩ indicator light

When the light is on, read the displayed value directly, unit is mΩ

·Ω indicator light

When the light is on, read the displayed value directly, unit is Ω

Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.