DOCUMENT: FC1: MARKINGS AND DEVICE SEALING
PAGE: 10 OF 12
4 Sealing of Process Connectors
For fiscal use, the connectors of legally relevant process boards have to be
officially secured. Plug-in connectors with screws are used for connecting
the lines of the ExMFE5 and the MFE7 board.
Sealing of ExMFE5 connectors
In case of an ExMFE5 board, there is only one connector for all lines. In
principle, there are two alternatives for securing these connectors. The
standard method is to secure the drilled screws fixing the connector with a
wire and a seal (please refer to Figure 10).
Figure 10 (schematic):
Sealing of ExMFE5 plug-in connectors with wire and seal
Sensor and transmitter lines
Connector housing
Seal screws
Wire and seal
If required (depending on the installation situation), the ExMFE5 screw
connections can alternatively be secured with two securing marks in the form
of adhesive labels (please refer to Figure 11).
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