Pepperl+Fuchs KFD2-CRG2-Ex1.D Transmitter Power Supply

Pepperl+Fuchs KFD2-CRG2-Ex1.D Transmitter Power Supply

The Pepperl+Fuchs KFD2-CRG2-Ex1.D is a single-channel transmitter power supply and signal isolator designed to power 2-wire and 3-wire transmitters located in hazardous areas. It safely transmits analog 4…20 mA signals from the hazardous area to the safe area, offering galvanic isolation and high accuracy.

Technical Specifications

• Model: KFD2-CRG2-Ex1.D

• Function: Intrinsically safe transmitter power supply and signal isolator

• Channels: 1 (single-channel)

• Input (Hazardous Area):

  • 2-wire or 3-wire transmitters

  • Signal range: 4…20 mA

  • Supply voltage for transmitter: 15…30 V DC (depending on load)

• Output (Safe Area):

  • Analog signal: 4…20 mA

  • Load resistance: 0…750 Ω

• Power Supply (Safe Area):

  • Voltage: 20…30 V DC

  • Power consumption: approx. 0.8 W

• Accuracy:

  • Transmission error: < 0.1% of full scale

  • Temperature drift: < 0.01% per °C

• Response Time:

  • Typically < 10 ms

• Isolation:

  • Galvanic isolation between input, output, and power supply

  • Isolation voltage: 2.5 kV AC

• Connection Terminals:

  • Removable screw terminals

• Mounting:

  • DIN rail mounting (35 mm rail, EN 60715)

• Housing Material: Polycarbonate

• Dimensions (W × H × D): Approx. 20 mm × 119 mm × 115 mm

• Protection Class: IP20

• Operating Temperature Range: –20 °C to +60 °C

• Storage Temperature Range: –40 °C to +80 °C

• Humidity: Up to 95% RH, non-condensing

• Approvals: ATEX, IECEx, FM, CSA, EAC — certified for use in Zone 0, Zone 1, and Zone 2 hazardous areas

Applications

This transmitter power supply is used in industrial automation systems where analog signals from field transmitters located in hazardous environments must be safely and accurately transmitted to control systems in the safe area. Typical applications include process measurement for pressure, flow, temperature, and level sensors.

Summary

The Pepperl+Fuchs KFD2-CRG2-Ex1.D transmitter power supply provides reliable power and safe signal isolation for analog transmitters in explosive environments. With high accuracy, fast response, and broad certifications, it is ideal for demanding process control applications requiring intrinsic safety and signal integrity.

On this page you will find the user manual for Pepperl+Fuchs KFD2-CRG2-Ex1.D. Get detailed technical specifications, installation and operating instructions to ensure optimum performance and reliability.

Manual for Pepperl+Fuchs KFD2-CRG2-Ex1.D

https://cpupartnergroup.com/image/pdf/Pepperl%2BFuchs%20KFD2-CRG2-Ex1.d.pdf