Owner`s manual

Dive Rite
Ch. 3 Pg. 4
Copyright, Dive Rite All Rights Reserved January 2009
<OK> 1.0 1.0
1.00 1.00 1.00
<WARN> 0.8 0.7
1.1* 0.86 0.81
ALERT 1.0 0.7
1.2* 0.96 0.99
PO2! ERROR 0.0
0.1* 0.0* FAIL
<BAT> 1.0 1.0
1.00 1.00 1.00
<3.0> 1.0 1.0
1.00 1.00 1.00
SECONDARY:
The Secondary handset has three possible display options (“Classic” - Classic, “D/Timer”
- Depth/Timer, and “D/TandS” - Depth/Timer/Stack Timer).
Classic Mode
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This mode displays system status, warnings and PO on a single screen. All warnings and
alarms are based on the deviation from the target set-point. The secondary must be set to the
desired set-point in the same manner as the primary.
The top line of the display shows the system status or the battery
status / voltage (<OK>, <WARN>, ALERT, PO2! ERROR!, or
<BAT>). This is followed by the calculated average PO2, and the selected set-point. The second
line displays the PO2 measurements for each sensor. If any sensor reading is followed by a “*”
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that sensor has been voted out and is not used in the average PO calculation. All sensors that
fail calibration (less than 40mV in 100% oxygen) will be disabled until successfully calibrating;
the disabled cells will show FAIL and not be used in any calculation.
The voting logic used in both the primary and secondary handsets is identical. Any sensor
that is 15% out of range from the average of the remaining two sensors will be voted out. The
three screenshots above show sensor one voted out. The second screenshot shows system status
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of <WARN>, this is indicated if any sensor is voted out or the average PO is at least 15% from
selected set-point. The next screen shot shows an error of at least 25%, so ALERT is indicated.
The last screen shows a status that no diver wishes to see, PO2 ERROR, this will be indicated
2
if the average PO reaches 1.8 or is 0.19 and below, the RED LED and the backlight are
illuminated.