User guide

Chelsea Technologies Group
FAST
tracka
User Guide HB179 Issue 7.0
Page
11
of
47
One long: FAST
tracka
on and ready to operate
One short: FAST
tracka
reset program
Two short: FAST
tracka
shutting down normally
Three short: FAST
tracka
refuses to turn on; no battery or Deck Unit power supplied
Four short: FAST
tracka
did not acknowledge shutdown request
A long pulse is roughly one second long, and a short pulse is roughly one half of a long pulse.
3.3 IMMERSION
• Before immersing the instrument, check the following:
• inspect the bulkhead connectors for looseness or improper seating;
• ensure cable ends are prepared using standard connector technique;
• that locking sleeves are fully locked;
• cables are fastened to the battery pack guard with cable ties or similar items using the
holes provided;
• instrument cables are positioned so that there is a slight service loop in the cables;
• the bulkhead connectors will never be under any significant radial or axial strain;
• the battery pack is firmly mounted to the FAST
tracka
pressure can and the charging plug
is tightly screwed in by hand;
• that external sensors, if connected, are securely fastened both mechanically and
electrically and operational;
• that the sunblock is attached on channel A;
• all subsystems are functioning properly.
Inspect the mounting position of the instrument. For profiling operation, it should be vertical with
respect to the water column, and it should not be shaded by any part of the mounting assembly.
The ports for the dark chamber should be free and clear to channel the sample water as
necessary, and the sunblock should be properly mounted on the optical head channel A. The
instrument should be securely fastened to the mounting assembly, with a layer of neoprene or
other cushion between the instrument and its mounting hardware. This cushion will help prevent
dents and scratches in the exterior surface which might lead to premature corrosion. The
instrument chassis ground is also in this instance not connected to any rosette or frame. As
well, ensure that other cables, either electrical or mechanical, on the mounting frame, do not
interfere with the optical head area of the FAST
tracka
.
Disconnect the host or battery charging cables if connected, and properly replace the correct
charging plugs and dummy connectors. Check the o-ring seal on the charging plug for the
battery pack for damage or neglect. Lubricate if necessary.
Use the magnet switch to initiate proper flashing. Observe the indicator LEDs signalling proper
wakeup, and if the FAST
tracka
has been programmed to directly acquire, observe the excitation
flashes.
When the instrument has returned to the deck, again use the magnet switch to shut off the
FAST
tracka
. At this stage the battery pack may be charged or data may be downloaded, or the
user may simply wish to let the instrument remain on standby until the next deployment. Please
refer to the sections for Charging Requirements 3.11 and