Specifications

12
English
13
English
Notes:
1. For 10 minutes after a dive, FO
2 setting cannot be made.
2. If the watch is left untouched in the FO
2 SETTING display, the
display will automatically return to the FO
2 in 1 to 2 minutes.
When the nitrox mark “Nx” is flashing:
Nitrox mark
● If FO2 was set for nitrox diving the previous day and the date
has changed to the next, a flashing “Nx” is shown on the
display. In that case, be sure to set FO
2 newly before the
next dive according to the gas mixture of your scuba tanks.
● How to re-set FO2
Press to show FO2 display.
Press to show FO2 SETTING display.
Press once to show “Air” for diving with ordinary
air.
or
Press to set FO2 if you wish to dive
with nitrox.
• “Nx”
disappears.
Press to return to FO2 display.
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HOW TO SET FO2
Press to show FO2 display.
Press to show FO2 SETTING display.
* For diving with ordinary air, set “Air” for FO2.
Percentage of oxygen
“Air”: 21% for diving with ordinary air
Press to return to FO2 display.
or
Press to set FO2.
* With each press of buttons C and D, the percentage is increased
and decreased in increments of 1%, respectively. The digits
move quickly by keeping the respective buttons pressed.
* If a value between 22% and 50% is set for FO2, the nitrox
mark “Nx” appears on the display.
Nitrox mark
• “+” and “–”
appear near
buttons C and
D, respectively.
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HOW TO USE DIVE COMPUTER FUNCTIONS
■ NITROX DIVING FUNCTION
HOW TO USE DIVE COMPUTER FUNCTIONS
● The percentage of oxygen in the air used for ordinary diving is 21%. The higher percentage of oxygen in the gas mixture means a lower
percentage of nitrogen than ordinary air, reducing the risk of decompression sickness.
WARNING
● This function should be used only when you dive with
a gas mixture of oxygen and nitrogen other than
ordinary air. When diving with air, be sure to set the
percentage of oxygen (FO
2) to “Air”.
● Never use the watch for diving with any value other
than the actual percentage of oxygen in your tank set
for FO2.
● If you have set FO2 for nitrox diving, be sure to re-check
the FO2 setting before a dive. On the day following the
day you made a nitrox dive, “– –” is displayed in place
of the FO
2 setting, “Nx” flashes, and the watch cannot
be used for diving. In that case, set FO2 again.
● By setting “Air” for FO2, the percentage of oxygen is set to 21% as in the ordinary air. FO2 can be set from 22% to 50% according to
the gas mixture of your scuba tank.
● When a value between 22 and 50 is set for FO2, the nitrox mark “Nx” appears on the display, and the watch is shifted for nitrox diving.
● The watch calculates the no-decompression limit, residual nitrogen and other data according to the FO2 you have set.