be detected early and predictions made accordingly.
The measuring units of your digital barometer can be
displayed either in hPa (Hectopascal = Millibar), inHg
(inch of mercury) or in mmHg (Torr).
Setting the sea level air pressure
Before going to the next step, it is imperative to check
the following setting. When in the barometer mode
(BAR), press the On / Off button (10) once. You will
now enter the sea level air pressure adjustment mode
and should see „SET SLP 1013" in the display. This value
is the standard air pressure in hPa at sea level. If this is
not the value in the display, push the navigation buttons
(3) up or down until 1013 is set. Push the On / Off button
again to return to the barometer mode.
Please note: It is very important that this value is set
properly. The altimeter calibrates itself in accordance
with the air pressure at sea level. Incorrect data will
lead to false altimeter readings.
Setting the barometer measuring units
In the display, you can see „BAR" and one of the three
barometer measuring units in hPa, inHg or mmHg. By
pushing the navigation buttons (3) up or down, you can
46
choose the desired unit. Turning the mode dial to the right
will bring you to the barometer history. In the LCD display,
you will see a bar diagram of the present (the bar at the
far right) and the last four readings from right to left (fig.
3). Using the navigation buttons (3), you can read the
temperatures recorded during the last 2, 4, 6 or 8 hours.
Pressing the On / Off button (10) once will bring you to
the „SET BARO" mode. This can be set by pushing the
navigation buttons (3) up or down and the value saved
by pushing the On / Off button again. The exact values
for your location can usually be found in the internet.
Please note: The barometric pressure setting in the
„SET BARO" mode must be set according to the cur-
rent hPa reading at your location.
Altimeter (ALT)
By turning the mode dial to the right, you will now enter
the altimeter mode. This reading indicates the measured
Fig. 9
altitude above sea level and can be displayed in meters
(m) or feet (ft) by pressing the navigation button (3)
either up or down. The scope of altitude consists of 0
to 9.000 meters or 0 to 30.000 feet. The altimeter is
automatically calibrated every 10 minutes. If however,
the altitude increases at more than 1 meter / 3.28 feet
per second, the calibration will occur every second.
Before the automatic calibration can be effective, the
altimeter must first be set manually.
Important note: The actual altitude must be manu-
ally set before the automatic calibration can be of any
use. The automatic calibration is based on the current
air pressure, the standard air pressure at sea level
(1013 hPa) and the manually set altitude and does
not set the actual altitude automatically. The actual
altitude should not be ascertained via GPS devices
or similar as the results can be inaccurate. The best
sources to determine the correct altitude of your posi-
tion can be found either in the internet or on known
locations such as bridges etc. where the altitude is
distinctly marked on their exterior. It is recommended
to go to these locations if necessary, to set the al-
titude on-site before using the altimeter elsewhere.
The MINOX BN 7x50 DCM cannot guarantee a 100%
accurate altitude reading. The altimeter is designed
to provide a relative reading based on the current air
pressure of the surroundings.
Please note: Being that the altimeter is barometric,
the altitude reading may fluctuate depending on
changing air pressure. It might be necessary to set
the altitude manually at regular intervals if the air
pressure changes frequently.
Manual calibration of the altimeter
When in the altimeter mode, press the On / Off but-
ton (10) once. You will now see „SET ALT" in the LCD
display as well as the unit setting of meters (m). Set the
altitude by pressing the navigation buttons (3) either up
or down. Pushing the On / Off button (10) once will save
your setting and bring you back to the altimeter mode.
Your altimeter is now calibrated.
Please note: When determining the actual altitude,
bear in mind that the altimeter can only be set in
meters. This will be automatically calculated to feet
when set accordingly in the altimeter mode.
47