Cochran COMMANDER, Owner'S Manual

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considered in adjusting the algorithm. ZONE will
reduce the occurrences of obtaining slightly different
altitude readings and corresponding no-
decompression (NDC) limits when diving within a
given area. However, ZONE reduces the accuracy of
the altitude compensation for the first 2,000 feet
above sea level, since all altitudes below 2,000 feet
are treated as sea level. The advantage in ZONE is
that changes in apparent altitude due to temperature
or weather changes at sea level will not affect the
NDC computations.
In SEAMLESS , the algorithm is adjusted for extremely
small changes in altitude. However, a difference in
altitude may be seen from day-to-day at a given dive
site due to temperature or weather systems and their
effect on barometric pressures. SEAMLESS will
provide the most accurate altitude compensation
algorithm, but normal variations in atmospheric
barometric pressure may affect the no-decompression
time which is more predominantly seen in the Pre-dive
Prediction forecast.
CAUTION: The COMMANDER will not perform
Altitude Acclimatization if the touch contacts
are shorted or bridged. Rinse the unit with
clean fresh water and dry it with a towel after
each dive. Transporting and storing the unit
in its case will help prevent the possibility of
the contacts being shorted or bridged.
WARNING: While your COMMANDER will
automatically adjust its no decompression
algorithm for altitude, you should NOT
attempt to dive at altitudes greater than 1,000
feet above sea level without first completing
a sanctioned altitude diving course from a
recognized training agency for recreational
diving. The COMMANDER should not be
used for this type of diving by anyone
without this important training.
METRIC/IMPERIAL MODES: Most dive computers
always compute in either Metric or Imperial units and
merely convert the display to the other units. The
COMMANDER actually computes and displays in the
selected units giving maximum accuracy and user
familiarity. If the computer is computing and
displaying in Metric, the “METRIC” legend will be
illuminated when the computer is on. Metric/Imperial
selection is made using the Analyst
®
software.
Changing Modes does not affect any profiles or data
stored in the computer.