CiDRA SONARtrac PW VF-100 - Manual (Page 222)

12.3 Pipe Rotation
Process pipes that are subject or erosion on one side of the pipe are
sometimes rotated to extend the life of the pipe prior to replacement.
The HD series sensor cover and sensor band must be removed and
re-installed on the process pipe.
Note: The standard series of flow meters do not necessarily have to
be removed during pipe rotation unless the resulting sensor cover
orientation lies outside the criteria found in Section 5.6 of this manual.
CAUTION
In all cases, never remove the process pipe and place it on the
ground without being supported when the sensor head is
installed on the pipe. The sensor head will be damaged.
Sensor removal and re-assembly for HD series sensor heads is as
follows:
1. Remove the sensor head assembly in accordance with Section
12.2 of this manual. Be sure to remove the sensor cable from the
preamplifier board prior to removing the cover.
2. Rotate process pipes.
3. Re-measure the process pipe inside diameter and enter the new
diameter in the transmitter for greatest flow reading accuracy.
4. Re-install flow meter sensor assembly following the instructions in
Section 5 Sensor Installation.
12.4 Pipe Replacement
Whenever a process pipe is replaced the sensor assembly must be
removed and re-installed. Refer to the Pipe Rotation Procedures
above.
20837-01 Rev 02 Page 12-4