Vaisala WXT530 Series User Manual

Parameter Description
Wind Direction Oset
aSU,g=4<cr><lf>
WD minimum
aSU,h=0<cr><lf>
WD ma
ximum
aSU,j=22<cr><lf>
WD error indication
aSU,k=2<cr><lf>
The output o in mA is o=i* gain + oset.
o is clamped between min and max. If wind
measurement fails, the output value is err.
8.1.7.2 Analog Output Scaling
You can specify the transfer function between measured values and output analog values.
You can selec
t the analog output gain and oset used in the transfer function.
The factory default settings for the dierent
analog output modes are displayed in the
following table.
Table 32 Analog Output Scaling
Parameter 4 … 20 mA
option (max 60
m
/s)
0 … 20 mA
option (max 60
m/s)
Command example (4 … 20 mA)
Aout1, Wind Speed Gain 0.266667 mA /
m/
s
0.333333 mA /
m/s
aSU,a=0.266667<cr><lf>
Aout1, Wind Speed Oset 4 mA 0 mA
aSU,b=4<cr><lf>
A
out1, Wind Speed Minimum 0 mA 0 mA
aSU,c=0<cr><lf>
Aout1, Wind Speed Maximum 22 mA 22 mA
aSU,d=22<cr><lf>
Aout1, Wind Speed Error
Indication
2 mA 22 mA
aSU,e=2<cr><lf>
A
out2, Wind Direction Gain 0.044444 mA / ° 0.055556 mA / °
aSU,f=0.044444<cr><lf>
Aout2, Wind Direction Oset 4 mA 0 mA
aSU,g=4<cr><lf>
Aout2, Wind Direction Minimum 0 mA 0 mA
aSU,h=0<cr><lf>
Aout2, Wind Direction Maximum 22 mA 22 mA
aSU,j=22<cr><lf>
Aout2, Wind Direction Error
Indication
2 mA 22 mA
aSU,k=2<cr><lf>
You can configure
output scaling or transfer function settings by changing the custom gain
and oset. The basic measurement units are m/s and degrees. The physical output unit is A.
The following formula shows the impact of gain and oset values on the produced output:
o = y0 + k×s
WXT530 Series User Guide M211840EN-D
144
sales@streamlinemeasurement.co.uk
01457-864334
www.streamlinemeasurement.co.uk

Vaisala WXT530 Series Specifications

General

Brand	Vaisala
Model	WXT530 Series
Category	Transmitter
Language	English