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T-TOUCH II
*
27.12.
07
1:8
note 1:
"Presetting" an altimeter means setting the actual altitude of a known
point (see presetting procedure on page 7). The actual altitude values are indi-
cated on various media: signposts, contour lines
and spot heights on maps. The altitude "preset-
ting" is in line with relative atmospheric pressure.
note 2:
In an airliner, since the cabin is pressu-
rised, your altimeter will not indicate an accurate
altitude.
note 3:
To optimise the accuracy of your altim-
eter, you are advised to select the climate zone, see page 5.
characteristics of function
Description of function
In altimeter mode, your T-TOUCH becomes a baro-
metric altimeter, displaying the altitude relative to
mean sea level.
explanations
This is a barometric instrument, which calculates
the altitude as a function of absolute pressure
(atmospheric). As the altitude rises, pressure
drops, and vice versa. So the altimeter measures
the difference between absolute pressure (atmos-
pheric) and relative pressure (relative to sea level) to display the altitude. Your
T-TOUCH is temperature compensated, and you can adjust your geographic
location (hemisphere and climate zone). The altitude displayed is therefore cor-
rected automatically.
glossARy >
AltiMeteR
Measurement range
– 400 m to +9000 m – 1333 ft to +30,000 ft
Altimeter resolution
1 m
3 ft
Unit conversion
1 metre [m] =
3.281 feet [ft]
1 foot [ft] =
0.305 metres [m]
nB!
Due to the use of pressure to calculate altitude, the altimeter is sensitive to
variations in atmospheric pressure in weather changes. It is not uncommon
to observe altitude differences of 100 m in a night. So the value displayed
may vary without the altitude having actually changed.
Weather change = pressure variation = displayed altitude change
4473 m
4473 m
4473 m
chRono
Activate glass
chrono
display
b) Restart the chrono
counting the elapsed time
Resolution: 1/100 sec / Measurement range: 99 hrs 59’59’’ and 99/100 sec
Reset
chrono
Start
chrono
split (partial time)
a) Flashing stop with partial
time displayed, and chrono
running in background
Stop
chrono
Start
chrono
Reset
0.00.00
00
27.12.
07
27.12.
07
0.01.16
34
0.00.00
00
13h46
57
0.00.00
00
0.01.16
34
0.01.20
52
0.01.36
88
0.01.20
52
0.01.36
88
0.00.00
00
0.00.00
00
Stop
chrono
540 m
540 m
0m
500m
1000m
1500m
2000m
540 m
780 m
540 m
Attention!
P = pression
4000
M
4478
M
5000
M
