Ambient Weather WS-109 Keychain Altimeter, Barometer
Contents
1. Press the button to return to the time and date display mode play Version 1 1 Copyright 2011 Ambient LLC All Rights Reserved Page 8 ambient weather Ve ag COMP ENE Figure 7 6 Altimeter Mode To enter the ALTIMETER mode while in the NORMAL mode press the ALTI button To exit the ALTIMETER mode and enter the NORMAL mode press the ALT button again The altimeter mode will return to normal mode time display every hour to conserve battery life Altitude Modes Climb Altitude Altitude gt Climb Altitude Climb Rate 6 1 Climb Altitude The climb altitude the change in altitude since the last reset is the primary display and the current altitude is the secondary display as shown in Figure 8 To rest the climb altitude press and hold the button for 3 seconds and the climb altitude will reset to Q see Tan ALTI rel Di ij J55 Figure 8 Press the button to continue to the next display mode play Version 1 1 Copyright 2011 Ambient LLC All Rights Reserved Page 9 ambient weather 6 2 Climb Rate The climb altitude the change in altitude since the last reset is the primary display and the altitude rate of change in the last minute ft min is the secondary display as shown in Figure 9 Figure 8 The climb rate updates once per minute ge E ALTI rel mrm ON m Df Ft min ra a an cue Figure 9 7 Backlight To activate the backlight press and hold2. Ni Note Do not use near strong magnetic or EMI forces TVs computers electronics which can corrupt the compass measurement 2 3 Installing the Battery Rotate the back cover counter clockwise about 20 gripping the unit with both hands using your index fingers and thumbs Rotate until it stops then gently pry off the back cover with your fingers exposing the battery compartment KI Note you may have to squeeze on the outer ring not the display and apply force in the clockwise and counterclockwise direction repeatedly work back and forth to free the back cover after extended use due to sweat and other debris Make sure your fingers are dry Insert the CR2032 battery side up and close the back cover insuring the gasket is firmly seated in the housing trace as shown in Figure 1 To remove the battery use a small pen or paperclip to pry the battery out of the battery compartment Version 1 1 Copyright 2011 Ambient LLC All Rights Reserved Page 2 ambient weather To close the back cover rotate the back cover clockwise until the back cover is completely closed The display should be powered up in the time and date mode and ready for use Battery Gasket Figure 1 3 Display Layout The display layout is shown in Figure 2 Figure 2 Version 1 1 Copyright 2011 Ambient LLC All Rights Reserved Page 3 ambient weather 1 Pressure Altitude 10 Temperature units of measure de
3. ambient weather Ambient Weather WS 109 Keychain Altimeter Barometer Thermometer amp Compass User Manual ambient weather Table of Contents k Miodu TG 10 eE E mn ouasomienmonate 2 2 MSCS Sred eseon ee a E a O TERORA ANERE 2 ZN PP GIGS TTS U cae Mececncs A E E 2 2 2 PPC CA ONS E PE EEA OE E T EE E A E AOE EEO 2 2 3 Installing the Battery scsudicsicccsisnlcantbetatcoadobiaveibonitons bela cud aa ai ois aiibi asni 2 r OYE 0 Fam 2 0 DL a en aT nen E EN Peta ci rT er eee ener 3 Be ICU INIOUG crcacsacsdenatnsanesvascant ao scecsoaaseeausaseinenuecisaesbuctoadsouataanieannesctuannoes E E 4 4 1 PORE CAS 0 IMO acs sasasca e TE E 4 4 2 12Hr 24Hr OT NAG asa tactcviratmcs inns omens sss aace eaetdaean aamsaceaaubbuieause been yasthauedwananaasaneaieeniaastacshnedcn 4 3 AE sande duvets ab E EEN AE E EE E NA E cumie tenets ces N A E 4 4 4 Dai e EE EE 5 4 5 Units of MICAS OS essiensa a oi ae iiaeiai iria 5 4 6 Magnete Dec naNO iassa asa imiininicessaastiohe eae ineiiesaiudiaban eas 5 4 7 A Omnia SC All AOI 232 scrcnagssarsuascarseaa toate EE 5 zo Nonnii Mode sc carsaapstsacesncceinacaceceauns T ns taldedaa a dseaderia sabes lausdu es ladadiedictaues T 6 5 1 Time AMG ALS NAY esns eiai Ea A E A EEEE 6 5 2 Altitude and Temperature Display and Altitude Calibration ccccccsesssssssseeeeeeeeeeeeeeeeeaaas 6 5 3 Hich Alutide TIS AY sec caraesercre erste ciated eae ison Uiaei gular daca miadidne seem itaaaenmaaalasaaiamiananete 7 5 4 Ba
4. of the reach of children No part of this manual may be reproduced without written authorization of the manufacturer Ambient LLC WILL NOT ASSUME LIABILITY FOR INCIDENTAL CONSEQUENTIAL PUNITIVE OR OTHER SIMILAR DAMAGES ASSOCIATED WITH THE OPERATION OR MALFUNCTION OF THIS PRODUCT 16 Warranty Information Ambient LLC provides a 1 year limited warranty on this product against manufacturing defects in materials and workmanship This limited warranty begins on the original date of purchase is valid only on products purchased and only to the original purchaser of this product To receive warranty service the purchaser must contact Ambient LLC for problem determination and service procedures Warranty service can only be performed by Ambient LLC The original dated bill of sale must be presented upon request as proof of purchase to Ambient LLC Your Ambient LLC warranty covers all defects in material and workmanship with the following specified exceptions 1 damage caused by accident unreasonable use or neglect lack of reasonable and necessary maintenance 2 damage resulting from failure to follow instructions contained in your owner s manual 3 damage resulting from the performance of repairs or alterations by someone other than an authorized Ambient LLC authorized service center 4 units used for other than home use 5 applications and uses that this product was not intended This warranty covers only actual defects with
5. d here you can contact us as follows 1 Email Support support ambientweather com 2 Live Chat Support www ambientweather com chat html M F 8am to 4pm Arizona Time 3 Technical Support 480 283 1644 M F 8am to 4pm Arizona Time The compass is not reading the proper The compass must be level to take a proper direction reading Make sure the compass calibration procedure has been followed each time a battery is installed Make sure the magnetic declination has been entered properly Move away from any electronic magnetic interference sources such as TVs or computers The forecast icon is not accurately The weather station must run for several days to displaying the current weather or the trend barometric pressure forecasted weather conditions The weather forecast is an estimation or generalization of weather changes in the next 24 to 48 hours and varies from location to location The tendency is simply a tool for projecting weather conditions and is never to be relied upon as an accurate method to predict the weather If you change altitude the forecast icon must be reset to the current weather conditions Altitude affects have a significant impact on the measured barometric pressure The temperature is not accurate The RTD is inside the unit and subject to a thermal time constant or the time it takes for the entire display to reach a given temperature due to the mass of the display Thus rapid changes in temp
6. eonsscaiacansdlaahinuniasuincnlaunisvaipensadinlsopsaweiecuneiriganbiennacniaeuinoninaaiaunidaias 14 16 Waranty DT OPM ATOM uses sasricns sannuaunsuendeussasnsaaraunvanataunacisseuaseus EAER 15 Version 1 1 Copyright 2011 Ambient LLC All Rights Reserved Page 1 ambient weather 1 Introduction Thank you for your purchase of the Ambient Weather WS 109 Keychain Altimeter Barometer Thermometer amp Compass The following user guide provides step by step instructions for operation and troubleshooting To download the latest manual and additional troubleshooting tips please visit http ambientweather wikispaces com ws109 2 Getting Started 2 1 Parts List 1 WS 109 Unit Dimensions 2 5 x 2 0 x 0 6 inches CR2032 battery Carbineer clip 2 2 Precautions A Caution This unit is water resistant but not water proof Do not submerse in water When installing the battery make sure the gasket is properly seated see battery installation instructions Avoid leaving out in the rain Caution Keep away from strong magnetic forces which can destroy the compass Caution Do not drop or apply excessive force to the LCD display When replacing the battery apply force to the outer ring Caution Do not operate outside of the specified temperature range 14 to 140 F Use your body warmth to keep within the low temperature range Ni Note Do not use a magnetized CR2032 battery which can corrupt the compass measurement
7. erature take several minutes to be measured by the digital thermometer If the display is close to your body it will not accurately Version 1 1 Copyright 2011 Ambient LLC All Rights Reserved Page 13 ambient weather Problem measure the ambient temperature and may take several minutes when away from your body warmth Thus it is best to hang the display from the carbineer in the open air to accurately measure the ambient temperature The altimeter changes at a fixed altitude Altimeters are often misunderstood because they do not measure your actual position on the earth true altitude such as a GPS but measure the air pressure and predict the altitude based on this measurement This is referred to as Pressure Altitude Pressure Altitude is adversely affected by the altitude and to a lesser extent changes in the weather often referred to as barometric pressure changes Thus your Pressure Alttude can change without changing your position These changes can be as great as a thousand feet the changes due to weather are more pronounced at higher altitude The altimeter is inaccurate at a known See solution above Make sure you calibrate the altimeter altitude at a known altitude The display reverts back to the date and This is by design to save battery life Other modes of time operation consume additional power especially the compass mode The sea level barometric pressure never Unlike a weather station barom
8. eter the sea level changes pressure is fixed when the altitude is calibrated and the measured pressure fluctuates as a function of altitude and weather conditions To update the sea level barometer calibrate the altimeter at a known altitude and the accurate sea level barometric pressure will be displayed 14 Accessories The following software and hardware accessories are available for this weather station at www AmbientWeather com Ambient CR2032 3 Volt PE N Standard CR2032 3 Volt Lithium Battery 1 Lithium Button Cell Batter nator Wy battery One Batter LAS 15 Liability Disclaimer Please help in the preservation of the environment and return used batteries to an authorized depot The electrical and electronic wastes contain hazardous substances Disposal of electronic waste in wild country and or in unauthorized grounds strongly damages the environment Reading the User manual is highly recommended The manufacturer and supplier cannot accept any Version 1 1 Copyright 2011 Ambient LLC All Rights Reserved Page 14 ambient weather responsibility for any incorrect readings and any consequences that occur should an inaccurate reading take place This product is designed for personal use as indication of weather conditions This product is not to be used for medical purposes or for public information The specifications of this product may change without prior notice This product is not a toy Keep out
9. evel To compare pressure conditions from one location to another Meteorologists correct pressure to sea level conditions removing the altitude affects Because the air pressure decreases as you rise in altitude the sea level corrected pressure the pressure your location would be at if located at sea level is generally higher than your measured pressure Thus your pressure may read 28 62 inHg 969 hPa at an altitude of 1000 feet 305 m but the corrected pressure is 30 00 inHg 1016 hPa The standard sea level pressure the average sea level pressure around the world is 29 92 inHg 1013 hPa Pressure conditions greater than 29 92 inHg 1013 hPa are considered high pressure and pressure conditions less than 29 92 inHg 1013 hPa are considered low pressure This device calculates the sea level barometric pressure based on the calibrated altitude described in the previous section 9 6 Digital Compass Measurement The compass must be level to accurately measure bearing This can be done by placing on a flat surface best or in the palm of your hand This is common with most digital compasses some compasses are tilt compensated but are expensive 10 Glossary of Terms value of the quantity being measured Pressure Altitude Pressure Altitude is the altitude in the International Standard Atmosphere an atmospheric model of how the pressure changes over a wide range of altitudes calculated from the measured air pressure Magnet
10. gC or 2 Pressure Trend up down steady degF 3 Relative Pressure 11 Low battery indicator 4 Forecast icon sunny partly cloudy 12 Compass mode cloudy rainy 13 16 point compass rose 5 Temperature degrees 14 Secondary parameter display 6 Altitude units of measure Feet 15 Sea level pressure 7 Altitude units of measure Meters 16 Barometric pressure mode 8 Pressure units of measure hectopascals 17 AM PM time indicator P PM 9 Pressure units of measure inHg 18 Primary parameter display 19 Altitude rate of change units of measure ft min or m min 4 Set Mode To enter the SET Mode press and hold the button for 3 seconds To exit the SET mode and return to the NORMAL mode at any time press and hold the button again for 3 seconds The SET mode will also automatically exit after 30 seconds of inactivity and return to the NORMAL mode The following sections describe the settings available in the Set Mode To skip any step press the button again Set Modes Forecast gt 12 24 Hr gt Hour gt Minute gt Month gt Day gt Temperature Units gt Pressure Units gt Altitude Units gt Compass Magnetic Declination gt Compass Calibration 4 1 Forecast Mode The current forecast will begin flashing Press the ALT button to set the forecast icon to the current weather conditions as defined below Sunny Partly Cloudy Press the button to continue to the next step 4 2 12Hr 24Hr Forma
11. hanges in temperature may take several minutes to stabilize If the display is close to your body it will not accurately measure the ambient temperature and may take several minutes to stabilize when away from your body warmth Thus it is best to hang the display from the carbineer in the open air to accurately measure the ambient temperature 9 4 Pressure Altitude vs True Altitude Altimeters are often misunderstood because they do not measure your actual position on the earth true altitude such as a GPS but measure the air pressure and predict the altitude based on this measurement This is referred to as Pressure Altitude Pressure Altitude is adversely affected by the true altitude and to a lesser extent changes in the weather often referred to as barometric pressure changes Thus your Pressure Altitude can change without changing your position These changes can be as great as a thousand feet the changes due to weather are more pronounced at higher altitude To offset the difference between Pressure Altitude and True Altitude you must calibrate the device at a known altitude whenever convenient For more information on altitude calibration refer to Section J Version 1 1 Copyright 2011 Ambient LLC All Rights Reserved Page 11 ambient weather 9 5 Relative Pressure vs Sea level Pressure Relative Pressure is the pressure measured at your location and Sea level Pressure is the pressure compensated to sea l
12. ic Declination Magnetic declination is the angle between magnetic north the direction the north end of a compass needle points and true north The declination is positive when the magnetic north is east of true north Relative Pressure Relative pressure is the barometric pressure measured at your location Measured Pressure The relative pressure is adversely affected by altitude and to a lesser extent changes in the weather Resolution is defined as the number of significant digits decimal places to which a value is being reliably measured Sea level Pressure Sea level Pressure is the relative pressure measured at your location Absolute Pressure compensated to sea level To compare pressure conditions from one location to another meteorologists correct pressure to sea level conditions True Altitude True altitude is the elevation above mean sea level To measure true altitude you must know your exact position on the earth as measured by a GPS An altimeter measures pressure altitude Version 1 1 Copyright 2011 Ambient LLC All Rights Reserved Page 12 ambient weather 11 Specifications Measurement Altitude 2 296 to 29 500 feet 65 ft 20 m 3 ft 1 m Temperature 14 to 140 F 2 F 1 C Ole 1 Barometer 8 86 to 32 49 inHg 0 04 inHg 1 5 mbar 0 01 inHg 0 1 See 300 to 1100 mbar 0 to 360 12 Other Specifications Update Rate 4 seconds 13 Troubleshooting Guide If your question is not answere
13. in the product itself and does not cover the cost of installation or removal from a fixed installation normal set up or adjustments claims based on misrepresentation by the seller or performance variations resulting from installation related circumstances XB Version 1 1 Copyright 2011 Ambient LLC All Rights Reserved Page 15
14. itude x 1 will begin flashing Press the ALTI button to advance the calibrated altitude x setting Press and hold the button for 3 seconds to exit the altitude calibration mode Press the button to continue to the next display mode play oe ALTI ge J85 Figure 4 5 3 High Altitude Display The high altitude since reset or calibration is the primary display and the H high icon is the secondary display as shown in Figure 5 To reset the high altitude press and hold the button for 3 seconds and the high altitude will reset to the current altitude Press the button to continue to the next display mode play Version 1 1 Copyright 2011 Ambient LLC All Rights Reserved Page 7 2 ambient weather Figure 5 5 4 Barometric Pressure Mode The measured barometer relative pressure is the primary display and the sea level pressure absolute pressure is the secondary display with the forecast icon and pressure trend at the top of the display as shown in Figure 4 Press the button to continue to the next display mode DE Paa BARO inHg aC Ooo Figure 6 5 5 Compass Mode The compass direction in degrees is the primary display and the 16 point cardinal direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW is the secondary display as shown in Figure 7 A four point bearing 1s indicated at the circumference of the display with the main bearing indicator pointing north
15. ly 0 Proceed to the next step 2 Rotate the compass clockwise until it reads exactly 90 and stop for at least 3 seconds If you overshoot this reading slowly rotate counterclockwise until it reads exactly 90 Proceed to Version 1 1 Copyright 2011 Ambient LLC All Rights Reserved Page 5 ambient weather the next step 3 Rotate the compass clockwise until it reads exactly 180 and stop for at least 3 seconds If you overshoot this reading slowly rotate counterclockwise until it reads exactly 180 Proceed to the next step 4 Rotate the compass clockwise until it reads exactly 270 and stop for at least 3 seconds If you overshoot this reading slowly rotate counterclockwise until it reads exactly 270 Proceed to the next step 5 Rotate the compass clockwise until it reads exactly 0 again and stop for at least 3 seconds 6 Once calibrated the CAL icon will disappear and the unit will return to normal mode If this does not occur please repeat this procedure again If successful the unit will return to normal mode 5 Normal Mode The default normal mode display is Time and Date This mode consumes the least amount of energy and will always return to the Time and Date mode after 30 seconds of inactivity to save battery life Normal Modes Time Date gt Altitude Temperature gt High Altitude gt Measured Barometer Sea level Barometer gt Compass Direction 5 1 Time and Date Display The default displa
16. mpass needle points and true north Only a GPS can determine true north by knowing your exact orientation on the earth All digital compasses measure magnetic north The declination is positive when the magnetic north is east of true north The declination is negative when the magnetic north is west of true north To determine the declination for your location visit http www nedc noaa zov geomagmodels Declination s For example Phoenix AZ produces the following result Declination 10 59 E changing by 0 6 W year or 10 degrees 59 minutes changing 6 minutes per year To convert to decimal format Declination 10 59 60 10 98 rounded to the nearest integer Declination 11 Enter 11 into the display This will offset magnetic north by 11 degrees or 11 degrees to the East to true north Note that the magnetic declination changes as a function of time for your location In the above example the declination changes 6 minutes or 0 10 per year or about 1 every 10 years Thus the time function is insignificant 9 3 Temperature Changes The temperature sensor is a resistive thermal device RTD As the temperature changes the resistance of the device changes and this resistance translates to temperature The RTD is inside the unit and subject to a thermal time constant or the time it takes for the entire display to reach a given temperature due to the mass of the display Thus rapid c
17. rometric Pressure Mode ccccscsceccccccceceeeceeaaeseeesseeeeeeeeeeeeeeeeeeeseaeeseeeseeeeeeeeeeeeeeeeeeaaaas 8 5 5 OMAP dSS Modo ics dies ausiene tone a arate a a nea Re iasadeatiahandeeess 8 0 Altimeter Mode sixsscctinantanieiniciranseesoetrienivansinaianinartdawseieebiaaaceianaaansiiabiaednenteeradneeieninanieidaetaietneriame 9 6 1 CHEA e E T E 9 6 2 Viti RAG e E EA 10 Tg Ba a E E E E E A A E 10 o LOW Batory MeO e E S E R 10 9 Discussion of Features and Limitations 2 0 0 ceessssssssseeceececeeeeeeeeaaaaeeseesseeeeeeeeeeeeeeeseeeaaaaaeeessees 10 9 1 Weather PORCCASUIING 4 inas saudinchoidionioenitanataus taniened E a E iancdalenimnidet 10 9 2 Magnetic Declination seisusssciacntnseiesecersassaraiadiansoinadsndesete weasseenudaiadianaorisnieiaee zivessiaeiaadasetdannseees 10 9 3 We rin perce E see sescudac T EE 11 9 4 Pressure Altitude vs True Altitud socrrisrisisniicisenineissnssisnninsnni nnns ariaa 11 9 5 Relative Pressure vs Sea level Pressure nnneseesssssssssssseettrrersssssssssssssseettereessssssssssssses 12 9 6 Digital Compass Meas rement sriccscsisorsdansiis d innia e a a 12 10 osn O TO S ae E E ns senscdaosensadasadasacennamececessaans 12 11 P O e E E E E E E E E 13 12 Other Specifications seeeeeeesssssssssssseetttteeressssssssssssssettrrressssssssssssseeererrresssssssssssseeerrrreeessssss 13 13 TOME EAE NG E T E D A A EE TEA TE 13 14 ACO S e A A E EA 14 15 Liability TIS LANG Ua iewwoporsaarei
18. t The hour format will begin flashing Press the ALTI button to toggle between 12 Hour AM PM and 24 Hour format Press the button to continue to the next step 4 3 Time The hour will begin flashing Press the ALTI button to advance the hour Note that in the 12 hour mode the P icon will be displayed to designate PM no icon is present for AM Press the button to set the minute Version 1 1 Copyright 2011 Ambient LLC All Rights Reserved Page 4 ambient weather The minute will begin flashing Press the ALTI button to advance the minute Press the MODE button to continue to the next step A Note If 12 hour time is selected the date format is automatically displayed as Month Day If 24 hour time is selected the date format is automatically displayed as Day Month 4 4 Date The month will begin flashing Press the ALT button to advance the month Press the button to set the day The day of the month will begin flashing Press the ALTI button to advance the day Press the button to continue to the next step 4 5 Units of Measure The units of measure icon UN will be displayed and the temperature units of measure will begin flashing Press the ALTI button to toggle between F and C Press the button to set the barometric pressure units of measure The BARO icon will be displayed and the barometric pressure units of measure will begin flashing Press the ALTI button to toggle between inHg and hPa Press
19. the ALT button for three seconds The backlight will remain on for 30 seconds of inactivity 8 Low Battery Indicator When the low battery indicator icon is displayed it is time to replace the battery 9 Discussion of Features and Limitations 9 1 Weather Forecasting The weather forecast or pressure tendency is based on the rate of change of barometric pressure In general when the pressure increases the weather improves sunny to partly cloudy and when the pressure decreases the weather degrades cloudy to rain The weather forecast is an estimation or generalization of weather changes in the next 24 to 48 hours and varies from location to location It is not an indication of current conditions The tendency is simply a tool for projecting weather conditions and is never to be relied upon as an accurate method to predict the weather Barometric pressure is adversely affected by altitude and to a lesser extent changes in weather conditions The weather forecasting tool is only useful at a fixed position and must be reset to the current weather conditions if you change altitude Thus if you are hiking climbing or driving and continuously changing altitude the weather forecasting tool must be recalibrated 9 2 Magnetic Declination Magnetic declination is defined as the angle between magnetic north the direction the north end of a Version 1 1 Copyright 2011 Ambient LLC All Rights Reserved Page 10 2 ambient weather co
20. the button to set the altimeter units of measure The ALTI icon will be displayed and the altitude units of measure will begin flashing Press the ALTI button to toggle between feet ft and meters m Press the button to continue to the next step 4 6 Magnetic Declination The compass magnetic declination calibration Cb icon will be displayed and the declination calibration value will begin flashing Press the ALTI button to increase the declination Press the IMODE button to advance to the next step Ne Note The maximum declination is 30 To set a negative declination advance past 30 to roll over to 30 4 7 Compass Calibration AS Note Compass calibration may not be required Only calibrate the compass if you receive an error or inaccurate reading The compass calibration procedure may exit prematurely if calibration is completed This usually occurs when one of the four calibration points have been passed through 0 The 16 point compass reference points will begin flashing Press the ALTI button to enter the compass calibration mode The compass angle and CAL icon will be displayed The following procedure must be carefully and precisely followed or the calibration procedure will fail 1 On a flat level surface slowly rotate the compass in the clockwise direction When the compass reaches exactly 0 stop for at least 3 seconds If you overshoot this reading slowly rotate counterclockwise until it reads exact
21. y mode is Time and Date The time is the primary display and the date is the secondary display with the forecast icon and pressure trend at the top of the display as shown in Figure 3 Press the button to continue to the next display mode play ae T Figure 3 5 2 Altitude and Temperature Display and Altitude Calibration The altitude is the primary display and the temperature is the secondary display with the forecast icon and pressure trend at the top of the display as shown in Figure 4 Since the altimeter measures Pressure Altitude and not True Altitude the altimeter must be calibrated at a known altitude whenever convenient for example at the beginning of a hike Pressure Altitude vs True Altitude is discussed in Section 9 To calibrate the altitude while in the Altitude and Temperature Display Mode press and hold the Version 1 1 Copyright 2011 Ambient LLC All Rights Reserved Page 6 ambient weather MODE button for 3 seconds The calibrated altitude x 1000 will begin flashing Press the ALTI button to advance the calibrated altitude x 1000 setting Press the button to continue The calibrated altitude x 100 will begin flashing Press the ALTI button to advance the calibrated altitude x 100 setting Press the button to continue The calibrated altitude x 10 will begin flashing Press the ALTI button to advance the calibrated altitude x 10 setting Press the button to continue The calibrated alt
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