10
Variable Ascent Rate Indicator (VARI)
The Variable Ascent Rate Indicator (Fig. 3a) provides a visual
representation of ascent speed (i.e., an ascent speedometer).
Green is a 'normal' rate, yellow a 'caution' rate, and red is 'Too
Fast'. The segments of the VARI represent two sets of speeds
which change at a reference depth of 60 feet (18 meters). Refer
to the chart for segment values.
WARNING: At depths greater than 60 feet (18 meters),
ascent rates should not exceed 60 fpm (18 mpm). At
depths of 60 feet (18 meters) and shallower, ascent
rates should not exceed 30 fpm (9 mpm).
ALPHA / NUMERIC DISPLAYS
Depth Displays
During a dive, the
Current Depth
display (Fig. 3b), indicates
Depths from 0 to 330 feet (99 meters) in increments of 1 foot (.1
meter). The Depth range is extended to 399 feet (120 meters)
when it is set to operate in Digital Gauge Mode.
By pressing the button, the
Maximum Depth
reached during
that dive will be displayed.
During a Decompression Dive, the required
Ceiling Stop
Depth
is displayed in the Max Depth position.
Fig. 3 - VARI & Depth
a
60 feet (18 m) & Shallower
Segments
Ascent Rate =
Displayed
FPM
MPM
0
0-10
0 - 3
1
11-25 3.5-7.5
2
26-30 8-9
3
>30
>9
Deeper than 60 feet (18 m)
Segments
Ascent Rate =
Displayed
FPM
MPM
0
0-20
0 - 6
1
21-50 6.5-15
2
51-60 15.5-18
3
>60
>18
VARI Values
b
