Product Description
The PRG-4000-R thermal resistor isolation safety barrier has a single channel safety barrier with an intrinsic safety input circuit, which can isolate and transmit the resistance values of two/three/four wire heating resistors from the hazardous area to the safe area at a 1:1 ratio.

Main technical specifications
Power supply voltage: 20V-35Vdc power supply
Number of channels: single channel
Power consumption: approximately 0.5W
Input signal range: 2/3/4 wire heating resistor
Output signal range: Resistance signal 1:1
Signal range: -200 to+800 ℃
performance metrics
Insulation strength: 2500Vac/min between intrinsic safety end and non intrinsic safety end, 1000Vac/min between non intrinsic safety end and non intrinsic safety end
Output accuracy: 0.1% F.S
Temperature drift: 0.01% F.S/℃
Working temperature: -20 ℃~+60 ℃
Relative humidity: 35% to 85% RH
Storage temperature: -40 ℃ to+80 ℃

Structure and external dimensions
Product structure: 35mm rail card, ABS shell material, plug-in terminal
Dimensions: 22.5 × 114.5 × 99 (mm)
Whole machine weight: 150g

Product Features
IIC explosion-proof rating, compliant with EMC standards, wide range power supply
installation site
The surrounding air should not contain any medium that corrodes chromium, nickel, and silver coatings

Applicable on-site and equipment
Installed in a safe place, it can be connected to the thermal resistance sensor of Zone 0 hazardous areas with IIA, IIB, IIC, and hazardous gases. The PT100 thermal resistance sensor is a two -, three -, or four wire system
Safety and Explosion proof Certification Parameters
National Quality Supervision and Inspection Center for Explosion proof Electrical Products (CQST)
Explosion proof mark: [EXia] (IIC)
Authentication parameters: Terminal (9.10.11.12.16)
Um = 250V Uo = 13V Io = 66.6mA
Co = 1uF Lo = 8mH Po = 0.22W

wiring diagram


Outline dimension drawing (mm)