©York Survey Supply Centre 2018Ref:.. \operat98\instructions 18\33235.qxp 05-01-18
Skywatch Meteos
You have just acquired a piece of high precision equipment which has been created using the most
modern technology. It has been designed to stand up to intensive use. However, in order to maintain its
appearance and its precision, we recommend that you treat it with care and read this manual carefully.
Functions of the buttons
Configura-
tion
To access the configuration mode of your instrument, just press on the button. Pressing the
button once again causes the system to confirm the setting have been changed. If not then it goes to the
next setting. To modify the settings the and buttons have to be used. The next page instructs you on
how to set up the different instrument settings.
Wind Measuring Units
The units to be selected are: knots, km/h, m/s, fps and bft. Once the unit is chosen, it remains displayed
in the top right of the screen. If no other unit is chosen the instrument is set to the Beaufort.
Temperature Measuring Units
The units to be selected are °C, °F, °C and °F
Setting the time of the average
The times selected are: ---(weighting), 3”, 6”, 12”, 30”, 1’, 6’, 30’, 1:00’, 6:00’, 12:00’, 24:00’, or timer. The
timer mode allows measurements of the average between start (press ) and stop (press ). This time
is displayed on the lower lines. This timer allows the use of the LapTime function (press the symbol
flashes). The button also allows the timer to be reset to zero. This works in the same way as a
standard chronometer.
Setting the wind and temperature displays
The displays to be selected are: ---, MIN, AV, MAX. If AV is selected the average of temperature and wind
are shown. The display of average windspeeds is always made simultaneously for the wind (at the
centre) and temperature (at the bottom). The other modes (---, MIN, MAX) only concern the
temperature.
Setting the display is not possible if the units selected are °C or °F .
Measuring the wind
Important: The protective cap has to be removed from the instrument in order to rotate the impeller. The
impeller has a maximum sensitivity in the vertical position (due to its magnetic levitation), and an
optimised precision when its axis of rotation is perpendicular to the wind direction.
Instantaneous wind speed (top of the screen)
Maximum wind speed (centre of the screen)
The display of the maximum wind speed is made at the central part. It is the
maximum measured value of the time of the average. The value is reset to zero during a RESET of the
memory.
Measuring the temperature
Instantaneous temperature
Important: Thermal inertia of the instrument directly affects the stabilisation time of the measurement.
The greater the temperature difference is the longer the this time will be. This time will be shorter if the
windspeed is higher.
Wind-chill temperature
As you know, exposure to low temperatures is potentially dangerous to the human body. But did you
know that wind plays an important part in how your body actually feels temperatures? For example, an
ambient temperature of 0°C and a 30km/h wind have the same effect on you as a temperature of -13°C!
The result of the calculation of the effect of wind on the temperature is called the “wind-chill
temperature”. By the sea, in the mountains, hiking or cycling, the Skywatch Meteos shows immediately
the temperature felt by the body and warns of risks of chilblains and hypothermia.
Min and max temperature
These two modes show the min or max values measured over time of the average. The value is reset to
zero during a RESET of the memory. These values are not those of the temperature felt by the body.
Technical Data
• Sealed and weatherproof instrument
• Thread on the bottom of the instrument for fixing to a tripod (1/4”)
• Anemometer Precision: ±3%, depending on its orientation in the wind
• Anemometer Resolution: 0.1 for all units
• Thermometer Precision: ±0.2°C
• Thermometer Resolution: 0.1°C
• Power Supply: 2x 1.5v AA batteries
• Battery Lifetime: At least 3 years with occasional use of the display backlight. To
replace, loosen the three screws on the metal plate.
• Weight: 235g (insubmerisible)
• Dimensions: Ø65 x 155mm
The wind measuring principle of the S YWATCH METEOS is based on the detection of a rotating
magnetic field produced by an impeller. If the device is subject to a strong field produced by a
transformer or motor, if may happen that the instrument shows undesirable values, without any
rotation from the impeller.
ON: Press for 1 second
OFF: Press for 2 seconds (not auto off)
LIGHT: Press on and off briefly
UP: Setting mode
START/STOP: Chronometer mode
DOWN: Setting mode
LAP/RESET: Chronometer mode
SET/CAL: Setting mode
RESET MEMORY: Press for 3 seconds
