Siemens SITRANS F Operating Instructions Manual page 23

Installation and dismounting of the cone/float/damper/spring stop
The instrument must be dismounted from the pipe before the float can be removed. After
dismounting, clamp the instrument in a horizontal position, ensuring that the fitting is not
damaged in the process. The dismounting procedure depends on the variable area
flowmeter model.
Model with measuring ring:
● Prevent the float (1) from torsion by fixing the upper guide bracket (2) by
● Remove from below the screw in the instrument from the guide bracket and then remove
● Remove the self-locking nut (3) which fixes the lower guide bracket (4) and take the guide
● Take the float out of the measuring unit upwards.
● Insert the new float into the instrument from the top. While doing so carefully put the
● Insert the lower guide bracket at the bottom end of the float and fix it with the self-locking
Figure 4-1
①
②
③
④
SITRANS FVA250
Operating Instructions, 02/2013, A5E03821131-01
using a suitable tool.
the guide bracket.
bracket out of the instrument.
bottom end of the float through the measuring ring.
nut.
Replacing floats
Float
Upper guide bracket
Self-locking nut
Lower guide bracket
Installing/Mounting
4.5 Damping
23