DC signal output isolation safety barrier

1、 Product Overview

Receive 4-20mA DC current signals from DCS/PLC systems or other operators located in safe areas, isolate and transmit them, output 4-20mA DC current, and drive intrinsically safe instruments such as electrical converters, valve positioners, display devices, etc. located in hazardous areas.

2、 Functional Features

1. Powered by an independent DC power supply, with isolation between the power supply input output.

2. Standard 35mm DIN rail card installation. Plug and unplug terminal block with spring compression connection.

3、 Technical indicators

1. Power supply:

Supply voltage range: 20-30VDC

Rated supply voltage: 24VDC

Current consumption (when powered by 24VDC):<><>

2. Enter from the safe zone:

Input signal: 4-20mA

Input impedance: 24 Ω

When the input pressure drop is 20mA,< 4V

3. Output to the danger zone:

Output current signal: 4-20mA

Current output load: ≤ 550 Ω (factory default)

4. Comprehensive general parameters:

Standard accuracy: ± 0.1%

Temperature drift: ± 0.015%/℃

Response time:<>

Isolation capability: 2.5KV, 1min, 50Hz between input output power supply

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

Shell material: PC (polycarbonate) material

Dimensions: 16 × 116 × 110 (mm)

Working environment temperature:- 20 ～＋ 60℃

Suitable for connecting on-site equipment and hazardous areas: valve positioners, electrical converters, and other intrinsically safe equipment. Zone 0, Zone 1, Zone 2; IIA, IIB, IIC hazardous areas.

5. Explosion proof grade mark: [Exia Ga]IIC

4、 Selection and Specifications