Ambient Weather WS-108, Руководство пользователя

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Version 1.1 ©Copyright 2011, Ambient LLC. All Rights Reserved. Page 12
compasses are tilt compensated, but are expensive).
10. Glossary of Terms
Term Definition
Accuracy Accuracy is defined as the ability of a measurement to match the actual
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.
Magnetic 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.
Range Range is defined as the amount or extent a value can be measured.
Relative Pressure
Measured Pressure Relative pressure is the barometric pressure measured at your location.
The relative pressure is adversely affected by altitude, and to a lesser
extent, changes in the weather.
Resolution Resolution is defined as the number of significant digits (decimal
places) to which a value is being reliably measured.
Sea-level Pressure
Absolute Pressure Sea-level Pressure is the relative pressure measured at your location,
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.
11. Specifications
Measurement Range Accuracy Resolution
Altitude -2,296 to 29,500 feet ± 65 ft (20 m) 3 ft (1 m)
Temperature 14 to 140 °F ± 2 °F (1°C) 0.1 °
Barometer 8.86 to 32.49 inHg
(300 to 1100 mbar) ± 0.04 inHg (1.5 mbar) 0.01 inHg (0.1 mbar)
Compass 0 to 360° ± 3° 1°
12. Other Specifications
Update Rate: 4 seconds
13. Troubleshooting Guide
If your question is not answered 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)
Problem Solution
The compass is not reading the proper 1. The compass must be level to take a proper