5 | Measurement Basics
G 1110
12 / 20
B-H88.0.01.DK2-1.2
5
Measurement Basics
5.1
General information about absolute pressure measurement
_
The device measures absolute pressure. However, this should not be confused with
the "sea level air pressure" indicated by weather stations. The altitude-based air
pressure decrease is calculated for these pressure specifications.
The device is capable of correcting this air pressure altitude correction.
To do this, set the parameter value
SEA.L
in the
Configuration menu
to
YES
and enter
the current altitude above sea level in the parameter value
ALT,.
The nautical norm correction must be deactivated for vacuum measurements.
5.2
Altimeter
If metres or feet are selected as the display unit in the
Configuration menu
, the device
is in altimeter mode.
The unit calculates the current altitude from the current air pressure: At higher alti-
tudes, the air pressure is lower. It is important to note that not only changes in altitude
but also the weather influence the measurement. To correct this weather influence, the
displayed altitude can be corrected via the keys.
Altimeter display:
In the Altimeter operating mode, you will be prompted to enter the
current altitude after pressing the
Function key
for 4 s.
Note: The first time you are prompted after switching on the device, the value is set to
the alti value in the
Configuration menu
. (default value for starting point)
The current value is retained for all further calls.
Note on min/max display: in the secondary display, the sum of the altitude metres
covered is also shown
for min: dESC - descent, for max: ASC - ascent
5.3
Special functions
_
5.3.1
NVLL
Tare function
If a pressure unit is selected as the display unit in the
Configuration menu
, the device
is in barometer mode.
After it is switched on, the device starts up in standard measuring mode, the special
function “tare” is started by pressing and holding the
Function key
for 4 s..
Barometer display: The display can be zeroed by pressing the
Function key
for 4 s.
If the tare function is activated,
NVLL
blinks in the lower display.
The tare function can be reset by pressing the
Function key
again
for 4 s.
