High O2 - Sherwood Scuba AMPHOS AIR 2.0 Manual

HIGH O2

Warning at 80% (240 OTU).
Alarm at 100% (300 OTU).
O2 Warning
If the theoretical amount of oxygen accumulated reaches 80% of the limit for a single exposure or 24 hour period, the Audible will sound dur-
ing which the Up Arrow icon and graphics O2 - 80 will flash in place of EDT time (or if in Deco Stop Depth/Time) (Fig. 91).
When the audible is acknowledged/silenced, EDT (or if in Deco Stop Depth/Time) will be restored and the Up Arrow will remain on solid until
O2 decreases below 80% then it will be removed.
O2 Alarm
If O2 continues to increase and reaches 100% of the limit (300 OTU), the Audible will sound again during which the Up Arrow icon and
graphics O2 - 100 will flash in place of EDT time (or if in Deco Stop Depth/Time), the graphic UP will flash in place of DTR, and the full O2BG
will be displayed in place of the NIBG (Fig. 92).
When the audible is acknowledged/silenced, EDT will be restored (even if in Deco when Stop Depth/Time will be removed), while the Up
Arrow and graphics O2 and UP will continue to flash until on the surface (Fig. 93).
• S (< 2 sec) to acknowledge/silence the Audible.
• A (< 2 sec) to view ALTs.
• M (2 sec) to access the Gas/TRT 1 Switch Preview.
• L (press) to activate Backlight.
O2 Alarm on Surface
Upon surfacing while O2 is 100%, the graphic O2 will flash in place of Nor for the first 10 minutes (Fig. 94) then alternate with Nor until O2
decreases below 100% (O2BG recedes to 4 segments) at which time O2 will be removed.
WARNINGS:
Making decompression dives without the proper preparation and training will place you in an unnecessarily dangerous
situation.
Existing data for making planned decompression dives is limited, and virtually non-existent for repetitive decompression
diving.
Decompression diving greatly increases your risk of decompression sickness.
Special training, equipment, and support are necessary for diving deeper than the maximum recommended sport diving
depth limit(s).
© Pelagic, 2019 32
AMPHOS AIR 2.0 DC MANUAL
Fig. 91 - O2 WARNING
(during audible)
Fig. 92 - O2 ALARM
(during audible)
Fig. 93 - O2 ALARM
(after audible)
Fig. 94 - O2 ALARM
(on surface < 10 min)
Doc. No. 12-79 3 9 -r01 (11/12/19 )