Small current DC perforated transmitter

DC current sensor

This product adopts the principle of phase difference magnetic modulation to control the DC leakage current in the power grid Real time measurement is performed to isolate and transform milliampere level current signals into standard tracking voltages（Ug) Output; It has the characteristics of high accuracy, high isolation, low drift, low power consumption, and wide temperature range. This product is suitable for insulation resistance testing in DC power grids and can also be used for detecting small currents.

one Main technical indicators

1. Input/output specifications: see product label;

2. Accuracy level: 0.5;

3. Linear range: 0% to 120% nominal input;

4. Input frequency response: ± DC;

5. Response time: 350ms;

6. Overload capacity:

20 times the nominal input current value, lasting for 1 second, with an interval of 300 seconds, repeated 5 times;

7．Load capacity:250R；

8. Auxiliary power supply: DC 24V;

9. Static current: 50mA;

10. Isolation withstand voltage:>DC 3kV, 1min;

11. Environmental temperature: Commercial grade: 0 ℃~50 ℃, Industrial grade: -25 ℃~+70 ℃;

12. Temperature drift: 600 × 10-6 /℃。

two Basic accuracy test method

1. According to the sensor terminal definition, connect the test circuit as shown in the diagram;

2. The basic accuracy test should be conducted under the following environmental conditions:

◆ Auxiliary power supply: nominal value ± 0.5%, ripple ≤ 5mV;

◆ Environmental temperature: 25 ℃± 5 ℃;

Relative humidity: (45-75)%;

Signal sources and measuring instruments with an accuracy level of 0.05 or above.

3. Power on preheating 5min；

quality quantity undertake promise

The products undergo strict inspection and quality control before leaving the factory,If discovered Not working properly,Suspected internal module malfunction,Please communicate with the nearest representative in a timely manner Li Shang,Office or directly contact our technical support hotline.

The product is shipped within twelve months from the date of shipment,Any product quality issues that arise during normal use will be repaired or replaced free of charge by our company.