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Special detectors
Line adapter (Ex) FDCL221-Ex
10
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10.9 Line adapter (Ex) FDCL221-Ex
Device for zone 0, 1 and 2 areas at risk of explosion
10.9.1 Functions
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The line adapter (Ex) is used for electrical isolation purposes and for limiting
the electrical energy between non-intrinsically safe and intrinsically safe
circuits.
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It is not necessary for the housing to be connected to local ground
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The power required for the line adapter (Ex) to supply itself is taken from the
FDnet. It is not necessary to connect an external power supply
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Operation possible on an FDnet detector line or a stub. There is therefore no
line separation function in the area not at risk.
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The line adapter (Ex) has two connections for the detector line (FDnet) in the
area not at risk and one connection in the area at risk of explosion (FDnet-Ex).
●
Two LEDs for displaying the operating status and faults, and for localizing the
device
Observe national guidelines and regulations.
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Fields of application:
– The line adapter (Ex) must not be mounted in the area at risk of explosion.
– The line adapter (Ex) is used where the operation of Ex peripheral devices
is required. It separates the area at risk of explosion from the area not at
risk
– The line adapter (Ex) only makes it possible to operate FDnet-Ex and
C-NET-Ex devices There are other safety barriers (SB2, SB3) available for
collective systems
– Changing from existing collective systems to addressable Sinteso and
Cerberus PRO fire detection systems