Ambient Weather WS-1285 Руководство пользователя - Страница 12
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Печатать страницу4. Power up the third remote thermometer as described in Section 2.5. Wait until the sensor
reports to the console. The third sensor will be designated as Channel 3. The display will
switch between each sensor until you exit the initialization state by pressing any button.
4.6.2 Sensor Accuracy Note
Verify the temperature values match closely with the console and sensor array in the same location
(about 10' apart). The sensors should be within 4°F (the accuracy is ± 2°F).
Allow about 30 minutes for both sensors to stabilize.
4.6.3 Viewing the 3 Sensor Channels
To view the 3 sensor channels, select the CH/+ button. The minimum and maximum can be viewed
for each channel as specified in Section 4.3.
If the sensor communication has been lost (blank display where temperature and humidity are
displayed), hold the CH/+ key for 3 seconds to re-acquire the current channel sensor signal. If you
have additional remote sensors, hold the CH/+ key for 5 seconds to re-acquire all of the sensor
signals.
5. Glossary of Terms
Term
Absolute Barometric
Pressure
Accuracy
HectoPascals (hPa)
Hygrometer
Inches of Mercury (inHg)
Range
Relative Barometric
Pressure
6. Specifications
6.1 Wireless Specifications
Line of sight wireless transmission (in open air): 260 feet
Frequency: 433 MHz
Update Rate: 60 seconds
Version 1.0
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Relative barometric pressure, corrected to sea-level. To compare
pressure conditions from one location to another, meteorologists correct
pressure to sea-level conditions. 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.
Accuracy is defined as the ability of a measurement to match the actual
value of the quantity being measured.
Pressure units in SI (international system) units of measurement. Same
as millibars (1 hPa = 1 mbar)
A hygrometer is a device that measures relative humidity. Relative
humidity is a term used to describe the amount or percentage of water
vapor that exists in air.
Pressure in Imperial units of measure.
1 inch of mercury = 33.86 millibars
Range is defined as the amount or extent a value can be measured.
Measured barometric pressure relative to your location or ambient
conditions.
Definition
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