12
Time Displays
Time displays are shown in hour:minute format (i.e., 1:16
represents 1 hour and 16 minutes, not 116 minutes). The colon
that separates hours and minutes blinks once per second when
the display is indicating real time (e.g., Elapsed Dive Time), and
is solid (not blinking) when times are calculated projections (e.g.,
Time to Fly).
The Main Time display is located at the top of the display (Fig.
5a) and a second time display (Fig. 5b) is located in the
center/right. Both displays are identified by a clock icon.
• Time of Day (Fig. 6a) can be set for 12 hour format (Am/Pm)
or 24 hour format.
Temperature Display
Ambient Temperature is displayed in the center/left portion
of the screen (Fig. 6b) while in the Surface Mode and Log
Mode, and can be viewed as part of an Alternate Display when
the button is pressed while in a dive mode.
NOTE: The informational displays are described in
detail as the various operating modes they appear in
are presented throughout this manual.
Fig. 5 - TIME
Fig. 6 - TEMPERATURE
a
b
b
a
13
POWER SUPPLY
The Element utilizes one (1) type CR 2450 Lithium 3 volt cell style
Battery that should provide 300 hours of continuous, or 50
activation periods, of operation.
• If you conduct 1 dive each time the unit is activated, you
should obtain approximately 50 dives.
• If you conduct 3 dives each time the unit is activated, you
should obtain approximately 150 dives.
Battery Indicator
A Battery Indicator (icon) provides an indication of Low Battery
condition. When power is sufficient for normal unit operation,
the icon will not be displayed upon activation or during Surface
Mode (Fig. 7). The icon is not displayed during any Dive
Mode(s).
Low Battery Condition
Voltage level is checked upon activation and every (1) minute
during operation on the surface.
• When voltage decreases to < 2.75 v and is > 2.50 v, the
Battery icon will be displayed solid (Fig. 8a) as a warning
that the Battery is to be replaced prior to conducting any
further dives.
Fig. 8 - LOW BATTERY
Fig. 7 - ACTIVATION
(no Battery icon = normal)
a
14
• Upon decreasing to a voltage level that will no longer sustain
proper operation (<= 2.50 v), the icon will flash 5 times
followed by shutdown of the unit.
• If a Low Battery Condition exists when the unit is activated
(by pressing the button), the graphic bAT and the Battery
Indicator will appear flashing for 5 seconds followed by
shutdown of the unit.
• If the button is not pressed to activate the unit prior to a dive,
and a Low Battery Condition exists, the Battery Indicator will
appear flashing as a warning upon descent to 5 FT (1.5 M).
No other information will be displayed.
• If the unit did not display a Low Battery Condition 'prior to'
entering the Dive Mode, and a Low Battery Condition occurs
during the dive, there will be sufficient battery power to
maintain unit operation for the remainder of 'that dive'. The
Battery icon will then appear after the dive upon entry into
Surface Mode.
R
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P
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D
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15
FO2 MODE
After Activation, the Element will operate as an AIR computer
without displaying information associated with oxygen calcula-
tions, unless it is set for Nitrox which is a percentage of O2
(FO2) other than AIR (a numerical value between 21 and 50 %).
When set for an FO2 value of AIR (Fig. 9), the Element will
perform calculations the same as if FO2 were set for 21% O2,
internally accounting for O2 accumulation for any subsequent
Nitrox dives. However, O2 related displays, warnings, and the
O2BG will not appear on the display for that dive, or subse-
quent dives, unless FO2 is set for Nitrox (a numerical value of
21 to 50 %).
Once a dive is made with the unit set as a Nitrox computer (FO2
set for a numerical value), it cannot be programmed to operate
as an AIR computer until 24 hours after the last dive. AIR will
not be displayed as an option in the FO2 Mode. However, you
can set FO2 for 21% for use with AIR.
When FO2 is set at a value of 21% (Fig. 10), the unit will
remain set at 21% for subsequent Nitrox dives until FO2 is set to
a higher value, or until it automatically turns Off 24 hours after
the last dive and is reactivated.
Setting FO2 is described on Page 21.
Fig. 9 - FO2 Set for AIR
Fig. 10 - FO2 Set for 21%
16
Fig. 11 - FO2 DEFAULT ON
Fig. 12 - FO2 DEFAULT OFF
FO2 50% DEFAULT
If the FO2 Default is set to ON (Fig. 11) and FO2 is set to a
value greater than 21%, the FO2 set point value will automati-
cally revert to 50% 10 minutes after that dive. The Maximum
Depth that can be achieved with a PO2 of 1.60 ATA will also
be displayed.
• FO2 must therefore be reset for each repetitive nitrox dive,
or the value will automatically Default to 50(%) and the dives
will be calculated based on 50% O2 (50% nitrogen) for
oxygen calculations and 21% O2 (79% nitrogen) for nitro-
gen calculations.
If the Default is set to OFF (Fig. 12), the FO2 value for repetitive
dives remains the same as previously set until the Set Point is
manually changed.
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