Cochran COMMANDER, Owner'S Manual

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2 8
Plus end goes in First.
When installing new batteries, ensure that the positive
“+” end of the battery is inserted into the battery
compartment first. Inspect the battery cap O-rings for
nicks and scratches. If either O-ring is damaged
carefully remove both O-rings and replace with new
silicone O-rings. Lightly lubricate each end of the
batteries with silicone grease or petroleum jelly to help
minimize corrosion and therefore extend battery life.
When reinstalling the battery cap, lubricate the O-
rings lightly and slowly twist the cap into place using a
coin (US Quarter supplied). Press the coin into the
battery cap slot firmly to prevent slipping and
damaging the slot. Ensure there is no dirt or debris on
the O-rings or the mating surface and that the O-rings
are properly installed.
As the battery cap is screwed in, carefully observe
that the double O-rings install correctly. Ask an
Authorized Cochran Dealer for a demonstration.
It is best to have the new batteries ready to
immediately install since the COMMANDER was
designed to allow for battery changes without
resetting and losing any Nitrogen residuals. This
period of time is typically 30 seconds, but varies with
temperature and the voltage of the batteries being
replaced. It can be significantly less if batteries are
not replaced promptly when the ‘BATT’ legend first
comes on. Again care should be taken not to activate
the TACLITE™ during battery replacement, if the
TACLITE™ is activated it will significantly reduce the
time that the COMMANDER allows for battery
changes without losing Nitrogen residuals.
If the batteries are allowed to discharge too low, or if
removed for too long, the COMMANDER may enter a
state where it will not turn on even with new batteries.
If this occurs, remove the batteries and allow the unit
to set for 30 minutes and then install fresh batteries.
This will, of course, erase any residual accumulated
Nitrogen from previous dives making the next dive
appear as a ‘clean’ dive. This procedure could also
effect the internal Time of Day Clock’s settings and
these settings should be verified via the Analyst
®
P.C.
Interface.