______________________________________________________________________________________
Revision NEW
APECS™ 2.7
8 of 19
Date: 10 July 2008
APECS
™ OPERATIONAL
INSTRUCTIONS (v. 2.7)
WARNING! It is the diver’s responsibility to monitor and maintain a safe
PO2 at all times, and to monitor the rate of change of PO2 especially during
times of high workload, descents and ascents! COMPLANCY KILLS!
The APECS™ Primary and Secondary display will time out of all menus
automatically after five seconds of in-activity and also fall asleep in surface or
dive mode after approximately ten minutes (if
DISPLAY POWERSAVE
is
enabled) to save power but will act as a sentinel monitoring the operating
systems. At anytime below or above the water both displays may be accessed
by pushing any button on the display desired as long as the power supplies are
on. It is very convenient to push the out board buttons on handsets to quickly
access the first menu page for PO2 status.
Settings:
The APECS™ may be configured for
CALIBRATION,
IMPERIAL/METRIC
,
SET OXYGEN PERCENT
and
ALTITUDE
settings. These
menus may only be accessed within a two minute time frame from turning the
power on during the pre dive procedures; this is to prevent the diver from
creating a hazardous condition during the dive. At anytime during the pre dive
the diver may reset the two minute window by turning the power off and turning
the power on again. These menus are common to both the primary and
secondary systems and will be discussed at the end of this manual.
Warning: At no time should the diver enter the water within the two minute
time frame of turning the power on.
Secondary Handset (APECS Configurations)
The APECS secondary handset shares the same simple two button
MENU/CONFIRM
system as the primary handset. The secondary handset is
totally isolated from the primary system in regards to information, power supplies,
and calibration. The only commonality between the primary handset and the
secondary handset are the sensors, each displaying the sensor output. The
secondary and the primary handsets are truly isolated and independent from
each other. It has been shown that a severed hand set cable (bare wires in salt
water) on operational dives did not affect the other handset, (in this case the
primary handset system).
Note: The secondary handset does not operate the solenoid in any way. The sole
purpose for the secondary is to provide a proper isolated independent backup
measuring the loop PO2 in the case of a primary system failure. The diver may
operate the Megalodon manually by manually injecting oxygen into the breathing
