Product Description
The PRG-1900 strain bridge isolation safety barrier provides 12VDC excitation power to the on-site strain bridge, isolating and transmitting the millivolt signal generated by the bridge to the safety side in a 1:1 ratio.

Main technical specifications
Power supply voltage: 20V-35Vdc power supply
Number of channels: single channel
Power consumption: approximately 1.8W
Signal type: bridge signal: mV signal
Incentive power supply: 12Vdc (40mA)
Input signal range: -100mV to+100mV
Output signal range: -100mV to+100mV

performance metrics
Insulation strength: 2500Vac/min between the intrinsic safety end and non intrinsic safety end
Non intrinsic safety end to end 1000Vac/1 minute
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 guide rail card mounting,
ABS shell material,
Plug in terminal
Dimensions: 22.5 × 114.5 × 99 (mm)
Whole machine weight: 150g

Characteristics of PRG-1900 strain bridge isolated safety barrier

IIC explosion-proof rating, compliant with EMC standards, wide range power supply, -100mV to+100mV output
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 0 zone bridge signal and millivolt signal sensors with hazardous gases of IIA, IIB, and IIC.
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)
Um = 250V Uo =17.85V Io = 314mA
Co = 0.3uF Lo = 0.25mH Po = 1.4W
Authentication parameters: Terminal (11-12)
Um = 250V Uo = 12V Io = 2.65mA
Co = 1.41uF Lo = 100mH Po = 7.95mW

wiring diagram



PRG-1900 Strain Bridge Isolation Safety Barrier Outline Dimensional Drawing (mm)