Dive Rite O2ptima User's Guide download pdf (Page 34)

Handset Display Details

The Primary handset has several informational screens that vary depending on

whether the unit is in surface mode, no deco obligation, or deco required conditions.

This is the surface mode screen; the top line

consists of the surface interval, selected set-point or open

circuit indicator, maximum depth of previous dive, and

finally dive time. The second line is the current PO

reading for the three oxygen sensors. These sensors

respond in real time and are not buffered or averaged

over some arbitrary sample time. This allows the diver to

accurately judge the response time of the sensors and see how the gas is mixing within

the head. The diver should not be concerned over a short spike in readings. The two outer

sensors, one and four, are positioned closest to the solenoid and will exhibit the highest

spiking.

The next display is the first of three screens

presented while in dive mode. The first line displays

current depth, selected set-point, dive time and

maximum depth. The second line displays the PO

readings of the three sensors. If any sensor reading is

followed by a “*” that sensor has been voted out and is

not used in the average PO

calculation.

The next screen depends on the status of the

diver’s decompression obligation. The top line is the

same as on the previous screen with the change being on

the second line. Instead of the PO

being displayed, the

oxygen percentage of the selected diluent and “No Stop”

is displayed until the diver enters a required

decompression stop.

The first line is the same as the previous two

screens, while the second line displays the oxygen

percentage of the diluent, deepest stop depth and stop

time followed by the total ascent time. The sample

screen shows the deepest stop at 20fsw for two minutes

and a TTS of 12 minutes.

The final screen may seem an annoyance, but it

serves as a reminder to the diver. The name of the diluent

the diver has selected and the programmed oxygen

percentage of the diluent.are displayed on the second

1:38 OC 008 000

0.73 0.73 0.71

170 1.0 0:12 172

21% 2@ 20 12

033 0.7 0:00 034

21% NO STOP

031 1.0 0:00 031

1.11 1.11 1.10

032 0.7 0:00 034

Air 21%

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 44 45

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Dive Rite O2ptima User's Guide Page 34

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