JANUARY 2010 - TD 220a DEPLOYMENT GUIDE, RDCP600
Page
65
Reliable solutions
When putting back the instrument into its pressure case we recommend that you insert
the instrument 90
off orientation mark. When the instrument is resting on the O-ring,
spin the instrument towards orientation.
Tighten the C-clamps until the top-end plate rests against the top of the case.
Avoid over tightening, as this will damage the clamp.
4.2
Retrieval of the Instrument
When the instrument is retrieved after deployment, remove marine growth and barnacles from
the sensor(s) using a hand scrub. To remove sea seashells or corals use plastic handle or similar
tools. The sensor housing will tolerate most cleaning agents. Be sure to follow the safety
precaution for such acids.
Note! Do not use any form of steal brush or any sharp objects; this might damage the acoustic
elements.
When inspecting, look for corrosion on connector’s cracks on the back potting of connectors and
scratches on protecting cable(s) jacket.
Rinse the instrument in fresh water and dry it. The unit can then be opened and the instrument
removed from its pressure container.
After opening, the following procedure must be carried out:
Wait until the instrument has completed the
current recording cycle (see CHAPTER 3);
Ping activity reads Idle
.
Stop the recorder if any battery capacity is left.
Wait until the progressing bar have completed.
Write down the time of the last recording.
Turn off the power switch at the back of the
instrument.
Remove the data storage unit from the
recording unit by releasing the screw cover
below the display.
Figure 4-1 Multi Media Card, MMC
