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eA990R Digital Anemometer

User Manual

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Summary of Contents for eA990R

Page 1: ...eA990R Digital Anemometer User Manual...

Page 2: ...A990R anemometer comes with many powerful features including the following LCD with White Backlight Beaufort Scale Maximum Minimum and Average Reading Display Hold Function Rechargeable Li Ion battery...

Page 3: ...1 oF 0 to 65 mph 49 to 50 0 1 1 8 Temperature oC 29 to 70 0 1 1 oF 20 to 158 0 1 1 8 Relative Humidity RH 0 to 100 0 1 2 Heat Index oC 0 to 100 RH 21 1 to 54 4 0 1 2 oF 0 to 100 RH 70 to 130 0 1 3 6...

Page 4: ...14oF to 140oF 10oC to 60oC Storage Humidity 10 to 75 RH Battery Lithium Polymer 300mAh rechargeable Current Consumption 11 mA 14 mA with backlight on Size 4 5 x 1 8 x 1 115 45 25 mm Weight 2 5oz 70g P...

Page 5: ...second to turn the anemometer off After 5 minutes without any operation the anemometer will power off automatically To disable Auto Power Off hold the Backlight button down while turning the unit on...

Page 6: ...de Changing the Measurement Units In any measurement parameter mode briefly press the Units button to change the measurement unit displayed For example in wind speed mode choose between mph m s ft min...

Page 7: ...meter is turned off Beaufort Scale The Beaufort scale categorizes wind speed according to observed conditions at sea or on land 0 Calm 1mph 1 Light air 1 3mph 2 Light breeze 4 7mph 3 Gentle breeze 8 1...

Page 8: ...n for more than 2 seconds This is handy for measuring air flow in difficult situations To track maximum minimum and average readings simply press the Max button briefly to cycle through them For avera...

Page 9: ...ir feels colder than it is because of the chilling effect of the wind Wind Chill is expressed as a temperature which is typically lower than the air temperature Wind chill temperature is valid only fo...

Page 10: ...h it Temperature response depends upon air flow through the unit due to the location of the temperature sensor inside the unit Response may be slow at zero air flow 5 to 10 minutes but typically only...

Page 11: ...n the anemometer and press the Mode button 3 times The display will show RH below the value of relative humidity Relative humidity and temperature are measured by the same sensor This sensor is locate...

Page 12: ...rspiration which removes heat from the body by evaporation High relative humidity slows evaporation which slows down heat removal from the body This causes the feeling of being overheated Heat index i...

Page 13: ...r is evaporating Below the dew point water will begin to condense on surfaces forming dew or particles in the air forming clouds and fog To measure dew point power on the anemometer and press the Mode...

Page 14: ...s in sea level pressure are quite small the highest and lowest sea level pressures ever recorded are 32 01 inHg in Siberia and 25 9 inHg during a typhoon in the South Pacific To measure barometric pre...

Page 15: ...Plane The Standard Datum Plane is a theoretical level where the weight of the atmosphere is 29 92 inches of mercury As atmospheric pressure changes the Standard Datum Plane may be below at or above s...

Page 16: ...e between your newly set zero reference altitude and your current position To change back to Pressure Altitude press and hold the Units button again for five seconds Calibrating Your Anemometer NOTE D...

Page 17: ...d the Units button down while turning on the anemometer Calibrating Barometric Pressure To calibrate barometric pressure use a reliable instrument or trusted source for barometric and altitude reading...

Page 18: ...on the display shows 5 the code for altitude Press the Power button The display will now show a value that is actually the default pressure altitude at the current atmospheric pressure in this case 00...

Page 19: ...ile hiking or climbing for instance Battery Replacement This anemometer uses a rechargeable 3 7V Lithium Polymer battery that is built in and is not intended to be replaced by the user This battery ca...

Page 20: ...Digital Anemometer ennoLogic eA990R Made in China User Manual Version 1 2 Revised 06 11 2020 2020 ennoLogic All rights reserved PO Box 25207 Eugene OR 97402 U S A http ennologic com...

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