Burkert Type 8750 - Manual (Page 11)

I NSTALLATION
8750 - 9
Installation of an FMR in a system
•
Any orientation of installation of the FMR may be chosen, but the TopControl should
preferably be above.
• In order to avoid turbulent flow at the pressure transmitter, a suitable intake section must
be provided immediately upstream of each FMR (dimensions to EN ISO 5167-1 as per
sketch); the outlet section is already integrated into the FMR.
• Make sure that piping is well aligned and that the FMR is installed without stress. The
piping must be fixed or supported as necessary.
Connection of the control air at the TopControl
G 1/4 G 1/8 G 1/8 G 1/4
Port 1 Control air connection
5.5 – 7 bar for DN 15 to DN65
5 –6 bar for DN80 and DN100
Port 2 1 Connection for single-acting actuator (already
mounted in the factory)
Port 2 2 not connected
Port 3 Connection for exhaust air, use optional silencer
Electrical connections
(see PIN allocation tables for circular male connectors M16 and M12)
• The electrical connections to the FMR are made with circular connectors at the connector
plate of the TopControl.
• The signal connections between the pressure transmitters and the TopControl have
already been made in the factory (with M8 circular connectors).
• In the case of the FMR version with optional temperature transmitter, the signal
connections have also been made in the factory with M8 circular connectors.
• If signals go out from the FMR, an M16 circular connector wired as per PIN allocation plan
is required. The M16 circular connector may be obtained from Bürkert.
• Wire an M12 circular connector as per PIN allocation plan for the power supply. The M12
circular connector may be obtained from Bürkert.
• Make the signal connection to the TopControl with the M16 circular connector.
• Make the connection to the power input of the TopControl (e.g. from a power supply unit)
with the M12 circular connector.
ATTENTION! Observe the direction of flow (arrow on the valve fitting); the inlet flow
to the control valve may as a general rule only be under the seat.
ATTENTION! Thoroughly clean all connection points prior to installation.
ATTENTION! Make sure that all connections are leaktight.