Basic Information
Full model: PEPPERL+FUCHS 2108HAT
Brand: Pepperl+Fuchs (P+F)
Series: H-System Intrinsically Safe Isolation Barrier System
Category: Dual-channel Temperature Conversion Isolation Barrier / Signal Conditioning Safety Barrier
Status: Officially discontinued, the original factory no longer produces; supply sources mainly consist of new inventory, disassembled spare parts, and repair parts
Core functions
Receive temperature sensor signals from the hazardous zone, perform electrical isolation and linearization processing, and output standard analog signals to the safety side DCS/PLC; intrinsic safety explosion-proof capability.
Signal specifications
✅ Input (Hazardous Zone Ex ia)
RTD thermal resistance (Pt100， Pt1000， etc.， 2/3/4 wiring type)
Thermocouple TC (K， E， J， T， S， R， B， N， L types)
±100mV millivolt signal， potentiometer signal (0.1~20kΩ)
✅ Output (Safety Zone)
4…20mA (sourcing / sinking current selectable)
1…5V voltage output
Supports 1 input divided into 2 isolated outputs (signal distributor)
✅ Additional functions
Sensor break detection (SBD)， loop fault monitoring LFD
NAMUR NE43 fault output definition (upper/lower fault)
Cold junction compensation (thermocouple)
SIL 2 (IEC61508)， applicable to safety instrumented loops
Can be configured through PACTware software， simple setup with side DIP switches
Electrical and installation parameters
Power supply： DC24V (backplane bus power supply)
Installation method： Must be paired with HiD series dedicated terminal baseplate (cannot be installed independently on a rail)
Operating temperature： -20 ℃ ~ +60 ℃
Protection： IP20 (used in control cabinet)
Explosion-proof certification： ATEX， IECEx [Ex ia] IIC
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