Ambient F009RT/WT Manuale d'uso - Pagina 8
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Stampa la pagina11. Glossary of Terms
Term
Accuracy
Hygrometer
Range
Resolution
Wind Vane
12. Specifications
12.1 Wireless Specifications
•
Line of sight wireless transmission (in open air): 300 feet.
•
Frequency: 433 MHz
•
Update Rate: 60 seconds for rain sensor and thermo-hygrometer sensor, 16s for wind
sensor.
12.2 Measurement Specifications
The following table provides specifications for the measured parameters.
Measurement
Indoor Temperature
Outdoor Temperature
Indoor Humidity
Outdoor Humidity
Rain
Wind Direction
Wind Speed
Accuracy is defined as the ability of a measurement to match the actual
value of the quantity being measured.
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.
Range is defined as the amount or extent a value can be measured.
Resolution is defined as the number of significant digits (decimal places)
to which a value is being reliably measured.
A wind vane is a device that measures the direction of the wind. The
wind vane is usually combined with the anemometer. Wind direction is
the direction from which the wind is blowing.
Range
0 to 60 °C
-40 to 60 °C
10 to 99 %
10 to 99%
0 to 394 in.
0 - 360 º
0 to 110 mph
Definition
Accuracy
± 1 °C
± 1 °C
± 5% (only guaranteed
between 20 to 90%)
± 5% (only guaranteed
between 20 to 90%)
± 5%
45º (8 point compass)
± 1m/s or 10%
(whichever is greater)
Resolution
0.1 °C
0.1 °C
1 %
1 %
0.01 in
45º (8 point compass)
0.1m/s