In hazardous areas with explosion risk, such as petrochemical and pharmaceutical plants, safe signal transmission comes first. The Pepperl+Fuchs KFD2-STC5-Ex1 is a SMART transmitter power supply isolator designed for intrinsically safe applications. It safely isolates analog input signals from the hazardous area and passes them to the safe area, and it supports digital protocols such as HART and BRAIN. It addresses insufficient power and signal interference in hazardous areas and protects your process systems.
Features
- Intrinsic safety: ATEX [Ex ia] compliant, for transmitter interfaces in Zone 0 / 1 / 2 hazardous areas.
- Digital communication: digital signals can be superimposed bidirectionally on the 4…20 mA signal for remote configuration, diagnostics and parameter reading.
- High transfer accuracy: transfer deviation ≤10 μA, with low drift and low ripple for accurate process data.
- Functional safety: SIL 2 (SC 3), with built-in diagnostics to improve the reliability of the whole automation system.
- Flexible power and output: supports Power Rail supply; the output can be switched between current sink and source mode to suit different control systems.
Applications
- Petrochemical: intrinsically safe power and signal transmission for pressure and temperature transmitters in hazardous areas.
- Energy and process control: stable communication between SMART devices in hazardous areas and the DCS in the safe area.
- Fast process monitoring: bandwidth 0…7.5 kHz, for loops that need fast response and precise control.
- Field calibration: built-in HART resistor and test points let engineers connect a communicator directly for on-site diagnostics.
With its wide temperature range and strong noise immunity, the KFD2-STC5-Ex1 is a core signal isolation component in intrinsically safe systems.
How to request a quote: please send (1) the model; (2) the quantity; (3) how urgent it is. Contact us if you need advice on planning an intrinsically safe system.
Trademarks: Pepperl+Fuchs, HART, BRAIN and the model names on this page are trademarks or model names of their owners, used here only to identify the parts. JIAHON is not the authorized distributor of Pepperl+Fuchs in Taiwan.
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