Installing The Sensor; Wafer Type Design And Welding Adapter - ABB SensyMaster FMT230 Commissioning Instruction

FMT230, FMT250 THERMAL MASS FLOWMETER | CI/FMT230/250-EN REV. B

Installing the sensor

When installing the sensor, observe the following points:
• Installation in the pipe component or welding adapter is
only possible if the sensor data matches the measuring
point specifications.
• The sensor may be sealed only by using the O-ring
supplied in the scope of delivery. The O-ring must be
placed in the designated groove on the sensor
connection.
• The sensor elements may not be damaged when inserting
the sensor into the pipe component.
• If you are using an integrated hot tap fitting, you must
check that the hot tap fitting is in the disassembly
position before releasing the fixing screws.

Wafer type design and welding adapter

1 Sensor
2 Flange screws
3 O-ring
Figure 23: Installing a sensor (example)
4 Sensor connection
5 Centering pin
6 Washers and nuts
Installing the sensor:
1. Place the supplied O-ring in the groove of the sensor
connection.
2. Carefully slide the sensor into the pipe component.
Observe correct alignment to the centering pin in the
process
3. Fasten the sensor to the sensor connection using screws.
Tighten the flange screws simultaneously by applying the
required
torque (torque for supplied screws, non-lubricated,
without use of spring washers: 87 Nm).
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