Product Description
The KCD2-RR-EX1 (Part No. 190247) is a Pepperl+Fuchs Resistance Repeater / Isolated Signal Conditioner used to transmit resistance signals (RTD or potentiometer values) from the field side to PLC/DCS systems in a safe and accurate way.
It is mainly used in process automation, hazardous area instrumentation, and industrial control systems to ensure safe signal transfer with galvanic isolation.
Key Features
• 1-channel resistance repeater/signal isolator
• Transfers RTD (Pt100, Pt500, Pt1000) or potentiometer signals
• Supports 2-wire, 3-wire, and 4-wire measurement techniques
• Galvanic isolation between the field and the control side
• High accuracy signal transmission (≈0.1%)
• 24V DC supply via power rail system
• Line fault detection (LFD) for sensor wiring faults
• DIN rail mounting, compact 12.5 mm housing
• Suitable for Ex (intrinsically safe) applications
• LED status indication and DIP switch configuration
Specifications
- Product Type: Resistance Repeater / Isolated Barrier
- Model: KCD2-RR-EX1
- Part Number: 190247
- Brand: Pepperl+Fuchs
- Input Type: RTD (Pt100, Pt500, Pt1000) / Potentiometer
- Measurement Method: 2-wire / 3-wire / 4-wire selectable
- Output Signal: Resistance / analog representation to the control system
- Supply Voltage: 24 V DC (via power rail system)
- Power Consumption: ~93 mW (low-power design)
- Transmission Range: Up to 10 mA measurement current (system dependent)
- Accuracy: ±0.1% of measured value (typical)
- Line Fault Detection: Yes (open/short circuit detection for RTD)
- Galvanic Isolation: Yes (field ↔ control side)
- Mounting Type: 35 mm DIN rail (IEC/EN system rail)
- Operating Temperature: -40°C to +70°C
- Protection / Safety: ATEX / IECEx intrinsic safety approvals (Ex ia / Ex ec variants)
- Housing Width: 12.5 mm slim module
