20 FSM4000 ELECTROMAGNETIC FLOWMETER | OI/FSM4000-EN REV. E
… 5 Installation
… Installing the sensor
4. Use the appropriate screws for the holes in accordance with
Torque information on page 21.
5. Slightly grease the threaded nuts.
6. Tighten the nuts in a crosswise manner as shown in the
figure. Observe the tightening torques in accordance with
Torque information on page 21!
First tighten the nuts to approx. 50 % of the maximum
torque, then to 80 %, and finally a third time to the maximum
torque. Do not exceed the max. torque.
Figure 22: Tightening sequence for the flange screws
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