Large quantity of Pepperl+Fuchs SMART Transmitter Power Supply KFD2-STC4-Ex1
SMART Transmitter Power Supply KFD2-STC4-Ex1
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1-channel isolated barrier
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24 V DC supply (Power Rail)
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Input 2-wire and 3-wire SMART transmitters and 2-wire SMART current sources
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Output 0/4 mA ... 20 mA
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Terminals with test points
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Up to SIL 2 acc. to IEC 61508
Features
• 1-channel isolated barrier
• 24 V DC supply (Power Rail)
• Input 2-wire and 3-wire SMART transmitters and 2-wire
SMART current sources
• Output 0/4 mA ... 20 mA
• Terminals with test points
• Up to SIL2 acc. to IEC 61508
Function
This isolated barrier is used for intrinsic safety applications.
The device supplies 2-wire and 3-wire SMART transmitters in
a hazardous area, and can also be used with 2-wire SMART
current sources.
It transfers the analog input signal to the safe area as an
isolated current value.
Digital signals may be superimposed on the input signal in the
hazardous or safe area and are transferred bi-directionally.
If the HART communication resistance in the loop is too low,
the internal resistance of 250 Ω between terminals 8 and 9
can be used.
Test sockets for the connection of HART communicators are
integrated into the terminals of the device.
Application
The device supports the following SMART protocols:
• HART
• BRAIN
• Foxboro
