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OCL OPERATING MANUAL
© 2002 Design, 2014 Doc. No. 12-5378-r01 (4/9/15)
CLEAR (RESET)
The OCL is congured with a feature that allows nitrogen and oxygen calculations to be cleared.
This is intended for
facilities using the OCL for rental or training activities, not for general use by individual divers.
WARNING: Reset after a dive and subsequent use for a repetitive dive conducted by the same diver
could result in serious injury or death.
From the SN-ID Screen {see pg. 23} press S (< 2 sec) to access the Clear screen (if in NORM mode).
>> the graphics CLr NI-O2 with an arbitrary invalid code number entered by the factory will display, all solid.
>> 2002 is the correct reset code to use.
Proceed as follows, or press S (2 sec) to return to the SN screen
Reset procedure:
• S (2 sec), at any time, to cancel the procedure and revert to the SN screen.
• S (< 2 sec) to start the rst 2 digits (left) ashing.
• A (hold) to scroll upward through the rst digits (left) at a rate of 8 per second.
• A (< 2 sec) to step upward through the digits (left) one at a time.
• M (< 2 sec) to step back through the digits (left) one at a time.
• S (< 2 sec) to save the rst 2 digits (left) and start the second 2 digits (right) ashing.
• A (hold) to scroll upward through the second digits (right) at a rate of 8 per second.
• A (< 2 sec) to step upward through the digits (right) one at a time.
• M (< 2 sec) to step back through the digits (right) one at a time.
• S (< 2 sec) to save the reset code, clear the NI-O2 calculations, and revert to Watch mode.
ALTITUDE SENSING AND ADJUSTMENT
Altitude (i.e., ambient pressure) is measured upon activation and every 15 minutes until a dive is made.
> Measurements are only taken when the unit is dry.
> Two readings are taken, the second reading 5 seconds after the rst. The readings must be within 1 foot (30 cm) of each other to record that
ambient pressure as the current Altitude.
> No adjustments are made during any time that the Wet Contacts are bridged.
> When diving in high altitude waters from 3,001 to 14,000 feet (916 to 4,270 meters), the OCL automatically adjusts to these conditions
providing corrected Depth, and reduced No Deco and O2 Times at intervals of 1,000 feet (305 meters).
> When the Conservative Factor is set On, NDLs are calculated based upon the next higher 3,000 foot (915 meter) Altitude.
> All adjustments for Altitudes greater than 11,000 feet (3,355 meters) are then made to allowable dive times for 14,000 feet (4,270 meters).
> The OCL will not function as a Dive Computer above 14,000 feet (4,270 meters).
ADDITIONAL INFORMATION PERTAINING TO FREE DIVE MODE
• Although breathing apparatus is not utilized for Free Dive activities, nitrogen tissue loading remains a factor. Nitrogen loading is calculated
based upon a xed FO2 of Air.
• Since a user has the option of alternating between SCUBA and Free Dive activities within a 24 hour period, nitrogen calculations and the
displayed value of No Deco Dive Time Remaining (NDC time) are carried over from one operating mode to the other, which permits the user to
maintain awareness of nitrogen absorption and offgasing status.
• The mathematical models currently used in the OCL are based on no decompression/decompression multilevel repetitive dive schedules.
• These algorithms do not take into account the physiological changes associated with the high pressures that competitive type Free diving can
expose a diver to.
ADDITIONAL WARNINGS
• Ensure that you know which Operating Mode is selected (NORM, GAUG, or FREE) prior to commencing any dive.
• Conducting Free dives within a 24 hour period after conducting SCUBA dives, combined with the effects of multiple rapid Free
Dive ascents, increases your risk of decompression sickness. Such activities may result in accelerated entry into decompression
which could cause serious injury or death.
• Combining competitive type Free dive activities that involve multiple descents/ascents with activities utilizing SCUBA during the
same 24 hour period is not recommended. Presently, there is no data relating to such activities.
• It is highly recommended that anyone planning to become involved in competitive type Free dive activities obtain proper
instruction and training from a recognized Free Diving trainer. It is imperative that the physiological affects be understood and
the diver is physically prepared.
CLEAR (Reset)
Code #