Technical data

20
A100 OPERATING MANUAL
© 2002 Design, 2012 Doc. No. 12-7271-r01 (4/25/12)
DV 3 (DELAYED VIOLATION 3)
Upon descent deeper than the MOD**, the Up Arrow icon and the loaded segments of the TLBG will flash, and Current Depth
and Max Depth will only indicate 3 dashes ( - - - ).
**MOD is the Max Operating Depth at which the A100 can accurately perform calculations and display data.
MOD = 330 FT (100 M)
Upon ascending above the MOD, Current Depth will be restored, however, Max Depth will display 3 dashes for the remainder of
that dive. Also, the Log for that dive will display 3 dashes as the Max Depth.
DV3 MAIN, information includes (Fig. 52) -
> Z+ (or DSAT) icon, algorithm selected.
> CF icon, if set On.
> Current Depth as 3 dashes ( - - - ) with FT (or M) icon, flashing until above MOD.
> Up Arrow icon, flashing until above MOD.
> DTR as 3 dashes ( - : - - ) with wave/clock/profile (NDC) icon.
> NX icon, if FO2 is set for Nitrox, blank if Air.
> TLBG, VARI while ascending.
B (< 2 sec) to access ALT 1.
> ALTs are similar to No Deco or Deco, whichever applies.
VGM (VIOLATION GAUGE MODE)
If a Deco Stop Depth greater than 70 FT (21 M) is required, operation will enter VGM. This would be preceded by DV2.
Operation would then continue in VGM during the remainder of that dive and for 24 hours after surfacing.
VGM turns the unit into a digital instrument without any decompression or oxygen related calculations or displays.
Upon activation of VGM, the full TLBG will flash for 10 sconds, then it is removed. The graphics UP VIO and Up Arrow icon will
also be displayed flashing in place of Deco Stop data, until on the surface.
VGM Dive Main, after 10 sec information includes (Fig. 53) -
> Current Depth with FT (or M) icon.
> Graphics UP VIO with Up Arrow icon, flashing until on surface.
> VARI, while ascending.
• B (< 2 sec) to access ALT (EDT & Max Depth).
VGM on Surface
The graphic VIO flashes for the first 10 minutes (Fig. 54), then VIO remains on solid until unit shut down after 24 hours with no
dives*.
*A full 24 hour surface interval must then be served before all functions are restored.
During that 24 hours, access to all selections and screens is available except those associated with Ni-O2 calculations such as
Desat, Plan, Set FO2. The Fly countdown timer provides the time remaining (of the 24 hours required) before normal opera-
tion can resume with full features and functions.
HIGH PO2
Warning >> at 1.20 only.
Alarm >> at 1.40 only, except in Deco then at 1.60 only.
When partial pressure of oxygen (PO2) increases to the Warning level, the graphic UP, Up Arrow icon, and PO2 value with icon
will flash in place of DTR (Fig. 55).
> After 10 seconds, DTR is restored, and the graphic UP and Up Arrow icon remain on solid until PO2 decreases below the
warning level when they are removed.
If PO2 continues to increase and reaches the PO2 Alarm level, the graphic UP, Up Arrow icon, and PO2 value with icon will
flash in place of DTR.
> After 10 seconds, DTR will alternate with the PO2 value, and the graphic UP and Up Arrow icon remain on solid (Fig. 56)
until PO2 decreases below the warning level when they are removed.
B (< 2 sec) to access ALTs which are similar to No Deco.
Fig. 52 - DV3 MAIN
Fig. 55 - PO2 WARNING
Fig. 56 - PO2 ALARM
Fig. 54 - VGM
(rst 10 min on surface)
Fig. 53 - VGM MAIN
alternate
with PO2