4 Assembly
and
Installation
Page 30 of 78
Operating Instructions
enCore FC1
ATTENTION!
Risk of short circuit
The FC1 device may be damaged when connecting any lines
while the FC1 is powered on.
-
Always make sure the power supply of the FC1 is
disconnected completely before making any change to
device wiring or before connecting transmitter, pulse
generator, signal or data lines.
The transmitter, pulse generator, signal and data lines are connected to the
FC1 by using plug-in screw terminals, each of which is located in a cable
terminal box. Fixed screw terminals are used for the power supply
connection.
Special attention must be paid to the intrinsically safe electrical circuits.
Before switching on the power supply, make sure that the plug connections
for the gas meter, pressure and temperature inputs of the ExMFE5 input
board are inserted, since this is the only way the straight line-gap of 50 mm
required in the relevant guidelines can be maintained.
The relevant installation guidelines must be observed when arranging the
wiring.
The lines must be free of tensile stress and must be provided with a kink
protection if the FC1 is mounted in a swivel frame.
Dimension the cable length in such a way that there is no tensile stress on
the cables when the swivel frame is opened up.
It is recommended that all incoming lines be placed on transfer terminals in a
switch cabinet, and then be connected with the FC1 from that point.
However, these terminals have to comply in part with the Ex-regulations, and
must possibly also be sealable, for example in order to fulfill the
requirements of an applicable approval.
