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021814/03/21
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For using frequency output (pin 1) next steps are as following:
Id. For operation, set FO4, UC0
Ie. Collect data from frequency output. With this setting, you will get wind velocity
corrected by standard characteristic curve and air pressure (so classification and
calibration are applicable). This is without regard to the firmware version
These are the next steps for using serial output:
If. For operation set UC0, MS2
Ig. For type *.400 (RS485) collect data v(hPa corr.) from telegram 2 / 4 / 5 / 6 pos. 17 (so
classification and calibration are applicable). This is without regard to the firmware
version
Ih. For type *.401 (MODBUS) collect data v(hPa corr.) from register 30013 / 35013 /
36005 / 36105 / 36205 (so classification and calibration are applicable). This is
without regard to the firmware version
4.2 Case 2 Using Current Calibration Table acc. to Classification
The procedure will be as following:
IIa. First you must specify whether you want to use the frequency output (pin 1) or serial
output to get your data
IIb. Calibration must be done without regard to the air pressure. For calibration you must
tell what kind of output you want to use in operation:
frequency output (pin 1)
calibration data: wind velocity corrected by standard
characteristic curve at pin 1; FO2
serial output
calibration data: wind velocity corrected by standard characteristic
curve at telegram 2 pos. 11
IIc. Let the linear regression analysis (slope / offset) on the calibration certificate be done
for the calibration data
IId. Let write the first calibration results into the current calibration table of the device. The
first calibration is then an adjustment
IIe. Storing the current calibration table on the device and using this data subsequently
for calculating the wind speed values means changing the device in a certain way.
Therefore, from the purely formal point of view a re-calibration would need to be
done. However, the re-calibration in this case would show a deviation of (nearly) 0.
Note:
Steps IIb. to IIe. will be done automatically if you order the calibration according to Thies art.
no. E433524X1 2.3 (for frequency output (pin 1); see picture 4) resp. E433524X3 2.3 (for se-
rial output; see picture 5).
