Installing The Connection Cables; Opening And Closing The Housing - ABB SensyMaster FMT230 Commissioning Instruction

40 FMT230, FMT250 THERMAL MASS FLOWMETER | CI/FMT230/250-EN REV. B
... 7 Electrical connections

Installing the connection cables

Ensure that a drip loop (water trap) is used when installing the
connecting cables for the sensor.
1 Drip loop
Figure 26: Laying the connection cable

Opening and closing the housing

WARNING
Risk of injury due to live parts!
When the housing is open, contact protection is not provided
and EMC protection is limited.
• Before opening the housing, switch off the power supply.
Figure 27: Cover lock (example)
NOTICE
Potential adverse effect on the IP rating
• Make sure that the cover of the power supply terminals is
mounted correctly.
• Check the O-ring gasket for damage and replace it if
necessary before closing the housing cover.
• Check that the O-ring gasket is properly seated when
closing the housing cover.
To open the housing, release the cover lock by screwing in the
Allen screw 1 .
After closing the housing, lock the housing cover by unscrewing
the Allen screw .
1