Tusa ZEN AIR IQ-950, Owner'S Manual

Page: 72 / 137

73
Example of ATR Alarm:
• You set the End Pressure Alarm for 300 PSI (20 BAR).
• You are at a Depth of 60 FT (20 M).
• Air Time Remaining decreases to 0:00.
• You Ascend at a maximum rate of 30 FPM (10 MPM).
• You surface with a minimum of 300 PSI (20 BAR) pressure
still in your Tank.
ASCENT RATE INDICATOR (ASC)
The ASC shows how fast you are ascending. When you exceed
the maximum recommended Ascent Rate for the depth you are
at, the Audible will sound during which time all segments of the
ASC and the graphic SLO will flash on the Main Dive screen
(Fig. 73). The flashing will stop and normal information restored
when the audible is silenced or your Ascent Rate is slowed
below the allowed rate.
The Ascent Rate alarm is based upon 2 sets of speeds which
change at a reference depth of 60 FT (18 M).
WARNING: At depths greater than 60 FT (18
M), Ascent Rates should not exceed 60 FPM (18
MPM). At depths of 60 FT (18 M) and shallower,
Rates should not exceed 30 FPM (9 MPM).
Fig. 73 - ASCENT ALARM