September
2017
Sentinel V SC and RT Operation Manual
Page 104
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
Reassembling the Sentinel V
To replace the end-cap or transducer head, proceed as follows. Use the
for parts
identification.
Replacing the End-Cap
To replace the end-cap:
1. Stand the Sentinel V ADCP on its transducer face on a soft pad.
2. Clean the mating surfaces of the end-cap and housing with a lint-free cloth.
3. Inspect, clean and lubricate the O-ring on the housing (see
). Ensure that the
O-ring is firmly pressed into the groove.
TRDI recommends using a new end-cap O-ring each time the ADCP is opened.
4. Replace the desiccant (see
).
5. Check the internal I/O connectors are connected.
6. Place the end-cap on the housing, aligning the mating holes and the alignment mark embossed on
the end-cap with the alignment mark embossed on the housing. When mating the end-cap with
the housing flange, try to apply equal pressure to all parts of the O-rings. Make sure the O-ring
remains in its retaining groove. As the end-cap is placed on the housing, check the cables are
coiled around the inside of the housing and do not become pinched.
Check that no wires or any other object is pinched between the end-cap and the housing.
If
the O-ring is not properly installed or if a wire or other object is pinched, the Sentinel V ADCP
will flood.
Figure 53.
Replacing the End-Cap
If the Sentinel V ADCP uses an internal battery pack, the rubber bumpers on the end-cap hold
the battery in place. Apply a bit of pressure to the end-cap to fully seat it as the end-cap
hardware is tightened.
