Alti-Windwatch Made in Switzerland O P E R AT I N G I N S T R U C T I O N S F LY T E C AG E · Ebenaustrasse 8a · CH-6048 Horw/Luzern · Fon ++41 41 340 34 24 · Fax ++41 41 340 54 24
Quick reference guide Alti-Windwatch Key functions: Barometer hPa · inHg Select the main menu Altitude m · ft Wind- / Windchill measurement Select the display units Windspeed mph · beauf · kts · m/s · km/h Temperature °C · °F
Alti-Windwatch – Operating Instructions Contents Introduction 2 Barometer/Time Resetting the air pressure development display Setting the barometer Altering air-pressure measurement in QFE or QNH Setting the time Set mode Set mode Set mode Option mode 4 5 6 6 7 Altimeter Setting the altitude Calibrating the pressure sensor Set mode Option mode 7 8 9 Windspeed indicator Resetting the peak speed and the mean values Setting the calculation time for the mean values Calibrating the wind-vane sensor Selec
Introduction Commissioning Introduction Battery Wind sensor Battery compartment Your Alti-Windwatch is powered by a lithium battery (3 V, CR 2032). 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.
Introduction Key functions Introduction Key functions Key functions Brief pressure You can cycle through the four main menus Barometer, Altitude, Windspeed and Tempe▼.
Barometer/Time General remarks Barometer/Time 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.
Barometer/Time Main menu Barometer/Time Set mode Temperature Time Development of air pressure Development of air pressure Current air pressure Reference altitude Main menu The Barometer main menu shows the current air pressure, the development of air pressure in the preceding 16 hours, the temperature and the time. ▲ key will change the Briefly pressing the ● value of the air pressure (hPa or inHg).
Barometer/Time Set mode Barometer/Time Set mode Setting the barometer ▲ key briefly. A new reference altiPress the ● ▼ key can be used to tude is displayed. The ● ▲ key increases it. reduce the display and the ● Either press the key briefly to alter the altitude in one-meter increments or hold it down continuously for fast resetting. ▲ ▼ ● Save your entry by pressing both keys ● simultaneously or wait 8 seconds; the display will change from Set mode to the main menu.
Barometer/Time Option mode Altimeter General remarks Time Setting the time ▲ Holding down the ● key for a long time (3 seconds) will change from the main menu to Option mode. The currently entered time will flash. ▼ key The time can be put back with the ● ▲ key. Either press and put forward with the ● the key briefly to alter the time displayed in one-minute increments or hold it down continuously for fast resetting.
Altimeter Main menu Altimeter Set mode Temperature Time QNH Altitude Altitude Main menu The Altitude main menu displays the current altitude above sea level, the temperature and the time. The resolution of the altitude display is 1 meter (3 feet). Normally, the altitude is remeasured every 10 seconds. Each press of a key results in a faster measuring mode (1 second). If the change in altitude exceeds 1 meter per second, the update rate automatically changes to the faster measuring mode (1 second).
Altimeter Option mode Altimeter Option mode Value of the pressure sensor in mbar Calibrating the pressure sensor If the QNH value at a known altitude deviates drastically from the QNH value of a weather station in the vicinity, the pressure sensor can be adjusted accordingly. Warning: the altitude figures will be false if the pressure-sensor correction value is set wrongly. Do not alter the setting without a good reason. ▲ Holding down the ● key (8 seconds) will change from the main menu to Option mode.
Windspeed display General remarks Wind measurement Turn the wind-vane ball until the aperture in the casing is in exact alignment with it. Incomplete opening will falsify your wind measurement data! Hold your Alti-Windwatch steadily in one hand and, with your arm outstretched, point it precisely in the direction from which you wish to measure the wind. Protecting the wind vane Turn the wind-vane ball until the aperture is fully closed. In this position, the wind vane is fully protected.
Windspeed display Main menu Windspeed display Main menu Peak windspeed Mean value ( ) or peak mean value ( ) of the windspeed Current windspeed Main menu The Windspeed main menu displays the current windspeed, the peak windspeed and the mean value of the windspeeds or the peak mean-value measured over a certain period of measurement (5 to 60 seconds). ▲ key briefly to alter the unit of Press the ● speed (mph, Beaufort, knots, m/s, km/h).
Windspeed display Set mode Windspeed display Option mode Zeroing the peak windspeed and the mean values Resetting the peak speed and the mean value display ▼ key will reset Holding down (3 seconds) the ● the peak-speed and mean-value displays to zero. All LCD segments are displayed. Release the key to return to the main menu. 12 Calculation time for the mean values In the Option mode of the windspeed ▲ ▼ ● simulindicator, pressing both keys ● taneously will move on to the next option.
Windspeed display Option mode Windspeed display Option mode Calibration factor for the wind-vane sensor The calculation time can be set between 5 and 60 seconds. Save your entry by waiting 8 seconds and return to the main menu; alternatively, you can change to the calibration factor of the ▲ ▼ ● wind-vane sensor by pressing both keys ● simultaneously. The calibration factor for the wind-vane sensor flashes on the display.
Windspeed display Option mode Temperature display Main menu Indicator for the mean-value ( ) or the peak meanvalue ( ) Selecting the mean-value display or the peak mean-value display The display shows the currently selected display with the indicator for the mean value or with the indicator for the peak meanvalue . ▼ key briefly to access the meanPress the ● ▲ key briefly to value display ; press the ● access the peak mean value display .
Temperature display Set mode Temperature display Option mode Zeroing the windchill display Resetting the Windchill display ▼ key will reset Holding down (3 seconds) the ● the windchill display. All LCD segments are displayed. Release the key to return the display to the main menu. Correction value for the temperature Calibrating the temperature sensor A false temperature display reading can be corrected. ▲ Holding down the ● key (8 seconds) will change from the main menu to Option mode.
Temperature display Option mode The correction value can be set between – 5° C (– 10° F) and + 5° C (+ 9° F). ▲ ▼ ● Save your entry by pressing both keys ● simultaneously or wait 8 seconds; the display will change from Option mode to the main menu.
Quick reference guide Alti-Windwatch Key functions: Barometer hPa · inHg Select the main menu Altitude m · ft Wind- / Windchill measurement Select the display units Windspeed mph · beauf · kts · m/s · km/h Temperature °C · °F
