1、 The function and working principle of the isolation safety barrier at the operating end:

The function of the isolated safety barrier at the operating end is to isolate the (4~20) mA signal from the regulator and output it to each actuator, while limiting the entry of hazardous energy from the intrinsic safety terminal into the hazardous area. The working principle of the isolated safety barrier at the operating end mainly involves the isolation of signals and the limitation of hazardous energy. It adopts a circuit structure that electrically isolates the input, output, and power supply from each other, which meets the requirements of intrinsic safety energy limitation. ‌

2、 Technical parameters of LYA-C operation end isolation safety barrier:

1. Input signal: 4~20mA

2. Output load:<5500 when 4-20mA, voltage type ≥ 250K0

3. Basic error: ± 0.2% FS

4. Explosion proof mark: [Exia] IIC

5. Shenyuan: 24VDC ± 5%

6. Temperature drift: ≤ 0.01% FS/℃

7. Insulation resistance: ≥ 100M Ω/500VDC between power supply input output

8. Insulation strength: 1000VAC/min

9. Power consumption: One in one out<1.4W, two in two out<2.8W

10. Working environment: ambient temperature of 0-50 ℃; Relative humidity ≤ 85% RH (avoid strong corrosive gases)

11. Installation method: Rear mounted card (DIN35 rail)