E
OPERATING INSTRUCTIONS
Alti-Windwatch
Made in Switzerland
FLYTEC AG · Ebenaustrasse 8a · CH-6048 Horw/Luzern · Fon ++41 41 340 34 24 · Fax ++41 41 340 54 24
Quick reference guide
Alti-Windwatch
Barometer Altitude Windspeed Temperature
Key functions: Select the display units
hPa · inHg m · ft
mph · beauf · kts ·
m/s · km/h
°C · °F
Wind-/Windchill measurement
Select the main menu
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Introduction 2
Barometer/Time 4
Resetting the air pressure development display Set mode 5
Setting the barometer Set mode 6
Altering air-pressure measurement in QFE or QNH Set mode 6
Setting the time Option mode 7
Altimeter 7
Setting the altitude Set mode 8
Calibrating the pressure sensor Option mode 9
Windspeed indicator 10
Resetting the peak speed and the mean values Set mode 12
Setting the calculation time for the mean values Option mode 12
Calibrating the wind-vane sensor Option mode 13
Selecting the mean-value display or the peak mean-value display Option mode 14
Temperature display 14
Resetting the windchill display Set mode 15
Calibrating the temperature sensor Option mode 15
Technical specifications 16
Alti-Windwatch – Operating Instructions
Contents
2
Commissioning
Your Alti-Windwatch is always switched on
but enters its energy-saving barometer mode
after approximately 15 minutes if the Windwatch is not being used.
The instrument is supplied with a basic configuration. These values can be altered using
the Set and Option modes to suit your own
personal requirements.
Battery compartment
Your Alti-Windwatch is powered by a lithium
battery (3 V, CR2032). When battery power
is low, the message ‹BAT› appears in the
display.
The instrument is always initialized with the
basic configuration when the battery is replaced. The barometer, the time and the altimeter all have to be reset.
A watertight membrane in the battery compartment serves to equalize pressure. If
your Alti-Windwatch is exposed to too
much humidity (e. g. if dropped into water or
exposed to heavy rain), this membrane must
be carefully dried without delay. Leave the
battery compartment open until the whole
instrument is dry again.
Wind sensor
Display
Menu key
Set-/Reset mode
Unit key
Option mode
Introduction Introduction
Commissioning Battery
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3
Brief pressure
You can cycle through the four main menus
Barometer, Altitude, Windspeed and Temperature by briefly pressing the Menu key ●▼.
By briefly pressing the Unit key ●▲, you can
select the display units in the relevant main
menu:
Barometer: barometric pressure display in
hPa or in inHg
Altitude: displayed in meters or feet
Windspeed: displayed in miles per hour,
Beaufort, knots, m/s or km/h
Temperature: displayed in °C or °F
Extended pressure
Holding down the Menu key ●▼(3 seconds)
will change from the relevant main menu to
Set/Reset mode.
Holding down the Unit key ●▲(8 seconds)
will change from the relevant main menu to
Option mode.
Pressing both keys briefly
Pressing both keys ●
▼
●
▲
simultaneously will
save the settings and the display will return to
the main menu.
If no key is pressed in Set or Option mode
for 8 seconds, the settings are automatically
saved and the display returns to the main
menu.
Introduction Introduction
Key functions Key functions
Key functions
4
Barometer/Time Barometer/Time
General remarks General remarks
It is possible to forecast the weather based on
a change in air pressure at the same location.
An improvement in the weather can be
expected when the air pressure is rising.
Conversely, a deterioration in the weather can
be expected if the air pressure is falling.
A barometer measures the current local air
pressure. As this decreases as altitude increases, the air pressure at a certain altitude
above sea level must be set in relation to the
air pressure at sea level. To do this, it is
necessary to enter the local altitude above
sea-level (= the altitude of your current
location).
NB: You must re-enter the altitude of your
location whenever you change locations as
it would otherwise be impossible to make a
reliable weather forecast.
The bar chart in the barometer main menu
shows the development of air pressure over
the last 16 hours thereby permitting a weather forecast to be made. The chart compares
the air-pressure values measured 16, 8, 4 and
2 hours previously with the current value.
One bar height corresponds to 2 hPa or the
corresponding value in inHg.
If the chart ascends from left to right, the air
pressure has risen and better weather can be
expected. If the chart descends from left to
right, the weather is deteriorating. If the chart
shows no movement, there will be no change
in the weather.
Better weather
Worse weather
No change in the weather
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