19/03/2025Predictive Maintenance Made Easy: Isolated Barrier for Vibration Monitoring
With the KCD2-VR4-Ex1 intrinsically safe barrier from Pepperl+Fuchs, predictive maintenance in hazardous areas is now simpler and more efficient than ever. This innovative voltage repeater enables the reliable transmission of high-frequency signals up to 20 kHz to control, safety, and monitoring systems—directly from the hazardous area.
Flexible, Powerful, and Easy to Configure
The KCD2-VR4-Ex1 is the only module on the market that allows simplified sensor power supply configuration via front-accessible DIP switches. Whether 2-wire or 3-wire sensors, or AC sensors without external power supply, this versatile module supports all common vibration, acceleration, and displacement sensors, as well as magnetic pickups and seismic sensors. The smart isolated barrier ensures seamless signal transmission without the need for complex workarounds such as Zener barriers or special grounding concepts.
Maximum Compatibility for Easy Integration
The KCD2-VR4-Ex1 is compatible with all commercially available sensors, supporting a standardized system architecture that significantly simplifies planning, documentation, and inventory management. Thanks to its compact design—measuring just 12.5 mm wide—and low power dissipation, it can be used even under extreme environmental conditions from -40 to 70 °C without restrictions.
Designed to meet the highest safety standards, the KCD2-VR4-Ex1 complies with IEC/EN 61508 Ed 2 for applications up to SIL 2 (SC3)—with the option for redundant use in SIL 3 circuits. The front-accessible DIP switches enable intuitive configuration, eliminating the need to operate hidden or hard-to-reach switches.
Ideal for Demanding Industrial Applications
Whether for turbine control and safety in power plants, compressor monitoring in the gas and hydrogen industry, or vibration analysis in petrochemical plants, the intrinsically safe barrier ensures maximum operational safety in critical infrastructures. Particularly for rotating machinery such as pumps, motors, and agitators, the module provides a reliable solution for early fault detection and predictive maintenance.