CiDRA SONARtrac HD VF-100 - Manual (Page 104)

Copyright © 2006 CiDRA Corporation Page 13-2
20638-02 Rev 01
10. Install a sensor band shorting plug on the sensor band cable.
Note: Sensor bands with an “R” in the Part Number suffix (e.g. Part
#: 20686-26-R) do not require a shorting plug.
WARNING
Potential electrical discharge. Always install a sensor band
shorting plug (see item 10 above) on the sensor band connector
whenever the sensor band connector is not installed in a mating
connector.
11. Install spring clamps on both sides of the cover flanges to keep it
from sliding or separating while removing the cover bolts.
12. Remove the boot gasket band if removing a stainless steel cover.
13. Remove the sensor cover bolts, nuts, and washers, and then cover
from pipe. Replace sensor cable access cover.
15. Use a hex driver or Allen wrench (refer to Table 4 for size) to
unscrew the nine sensor screws that hold the two rails of the
sensor together. Unscrew each screw a couple of turns until they
are loosened. While the screw threads are still engaged in the
attachment rails a few turns, spread the sensor rails apart and then
continue to loosen the screws until they are no longer engaged in
the threads. (By doing this, the o-ring that keeps the screws from
coming out of the rails will stay in place.) Use care to keep the
fastener assembly intact. If the spacers or Bellville washers do
come off the screw refer to the sensor band screw figure in the
Sensor Installation section of the manual for proper stack-up of
components.
16. Remove the sensor band thermal insulator (if so equipped).
17. Remove the sensor band assembly from the pipe.
18. Slide the screw and washer assembly o-ring down the screw to
retain the screws in their holes.
19. The original packaging as described in Section 6.1 should be used
when storing/transporting the system. If not available, lay the
sensor band in the bottom of the cover and move it to an area
where it will not be damaged.
20. Remove the compliant sheet from the pipe.
21. Replace sensor band screws prior to re-installation of sensor band.
22. Inspect and replace fiberglass cover gaskets as required.
23. Inspect and replace stainless steel cover flange gaskets as
required.