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Installation
2
2 Installation
2.1 Mounting the gas-net F1
The gas-net F1 device is designed for mounting in a 19"-cabinet and is available
with mounting widths of 1/3 or 1/2. Please pay attention to a mounting depth of
170 mm (with connectors: approximately 220 mm) to guarantee the accessibility
of the terminals on the back. We recommend mounting the device in a swing
frame.
gas-net devices must be installed in an ex-free installation area (electrical
operating area) according to protection class IP 20.
2.2 Connecting the Lines
Ensure that the device is in de-energized conditions before connecting the
transmitter, supply, signal and data lines.
Any modification of the wiring is only permitted if the supply is
disconnected!
Connect the transmitter and signal lines to the gas-net device using plug-in
screw terminals, each of which is located in a cable terminal box. Connect the
power supply via fixed screw terminals. Data lines have to be connected to the
corresponding SUB-DB9 connector housings.
Please pay special attention to intrinsically safe circuits. Before switching on the
supply, make sure that the connectors for the Gas meter, Pressure and Tempe-
rature inputs are plugged in as only then a thread measure of 50 mm can be
guaranteed, which is required by the relevant guidelines.
The connector for the connection of these sensor lines may be secured by
official stickers or, alternatively, by a seal wire and a seal for the billing-relevant
transfer.
Please consider the relevant installation regulations when arranging the wiring.
The lines must be tensile stress-free and must be provided with a bend
protection if the gas-net device is mounted in a swing frame. Dimension the
cable length in such a way that there is no tensile stress on the cable during the
swinging of the swing frame.
We recommend conducting the lines coming from the transmitters on transfer
terminals in a control cabinet and connecting them from there to the gas-net
gas-net F1
Page 2-1
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