Gill Instruments Ltd
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WindObserver 65
Page 31
Issue 4
Doc. No. 1390-PS-0039
June 2016
7.4.
Units
The wind speed can be set to any of the following units:
Unit
Abbreviation
Metres per sec
m/s
Knots
knots
Miles per hour
MPH
Kilometres per hour
kph
Feet per minute
fpm
7.5.
Output rate
The output frequency can be set between 1 and 10 per second. The wind speed is sampled
every 25ms, each axis being sampled sequentially. The following Table lists the possible
outputs per second and the corresponding number of averaged samples. A 25ms sample
period is used to process and output the results.
7.6.
Averaging (Digital Data)
There are two digital averaging options:-
7.6.1 G Command Averaging.
Using the G Command in association with modes other than M14, M15 and polled modes.
The Averaging Period can be set from zero to 3600 secs. (1 hour). The default setting is
zero
.
When averaging is enabled, data is output at a rate determined by the averaging
period. The data is an average of valid data collected during the averaging period.
If G is set to zero then averaging settings will be disabled.
For instance if the unit is set for G0025 then every 25 seconds there will be a single result
output that provides the average of the wind direction and magnitude data over the last 25
seconds.
A,219,000.78,M,60, 0D
A,202,000.79,M,60, 06
A,207,001.22,M,60, 0C
A,220,000.48,M,60, 04
Outputs per Second
Sample Average
1
39
2
19
4
9
5
7
8
4
10
3
