Vega KFD0-CS-Ex1.51P Bedienungsanleitung

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071984_ENG.xml 2003-03-24
Subject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in Germany
Pepperl+Fuchs Group • Tel.: Germany +49 621 776-0 • USA +1 330 4253555 • Singapore +65 67799091 • Internet http://www.pepperl-fuchs.com
KFD0-CS-Ex1.51P
DC repeater without auxiliary power
Safe area or hazardous area, zone 2
Hazardous
area
Channel I EEx ia IIC
Positioner
I/P converter
Fire detector
Voltage supply
current source
or
(only in 2 channel version)
Channel II EEx ia IIC
Channel I Channel II
Test resistor
12- 11+
2- 1+
2- 1+
8- 10- 9+
5- 4+
5- 4+
J J
Composition
1-channel
Output EEx ia IIC
Device installation permissible in
zone 2
Polarity reversal protected
Accuracy 1 %
EMC acc. to NAMUR NE 21
Each channel (4 terminals per channel)
functions like a "DC current isolator".
Both channels have separate reverse
polarity protection. The input and output
are galvanically isolated from each
other.
These units are designed for the
connection of fire detectors, smoke
detectors, temperature sensors, etc.
Their increased current range and the
higher accuracy allow for differentiation
between normal operation, fire alarm,
lead breakage and short circuit currents
in the safe area. In many cases they
may also be used for controlling I/P
converters. A separate power supply
with auxiliary power is not required. The
2 channel version allows for the
connection of 2 independent circuits in
a single housing. Due to the input
voltage limiting of 24 V, the maximum
voltage output is 21 V.
The isolation of power loops for the
control of positioner, I/P converters
etc. A current source is connected to
the safe area terminals.
The isolation of a current signal from
fire detectors or similar sensors. In
this case, a voltage source can be
connected to the safe area terminals.
A specific measurement current
across a passive sensor can be
measured in the safe area with a
series resistor.
Function
Application
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Inhaltsverzeichnis

Seite 1 - Composition

1071984_ENG.xml 2003-03-24Subject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in GermanyPepperl+Fuchs Grou

Seite 2 - Technical Data

2Subject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in GermanyPepperl+Fuchs Group • Tel.: Germany +49 621

Seite 3

3071984_ENG.xml 2003-03-24Subject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in GermanyPepperl+Fuchs Grou

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