Owner's Manual blood pressure monitor

Section 2: Diving with the Monitor 3 Air
30
Even the smallest differences in the pressure sensors can
cause two computers at the same altitude to display
different altitude sectors. (Notice how the altitude sectors
overlap in the illustration.) These differences are not
meaningful and do not interfere with the operation of the
computer. However, if there is an altitude indication while
at sea level, or two computers differ by 2 altitude sectors,
contact your U.S. Divers dealer for service.
Note: In order to assure optimal decompression even at
higher altitudes, the 10-foot decompression stop is divided
into a 13-foot stop and 7-foot stop. Therefore, the pre-
scribed decompression stops, in order, are 7 ft, 13 ft, 20 ft,
30 ft ... 80 ft.
Exceeding the Altitude Limit
The Monitor 3 Air operates normally up to an altitude of
13,123 ft.. Above that (atmospheric pressure below 8.99
psi), the computer will not show any decompression
information or remaining air time. Also, Pre-Dive Planning
Mode cannot be started, since decompression information
is not available.
If the altitude limit is exceeded, the Monitor 3 Air will
display "HI" along with all the altitude sectors.
Diving display when
altitude limit has
been exceeded
Altitude adaptation
display upon
exceeding the
altitude limit