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Vaisala LT31 - Command Line Calibration; Visibility Calibration

Vaisala LT31
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User's Guide ______________________________________________________________________
240 _________________________________________________________________ M210667EN-C
The new calibration data is displayed on the right side. The new value
have to be accepted by the user.
Accept Calibration? (yes/no):
To accept the new values, type yes<CR>.
To discard the new values, type no<CR>.
An indication about the storage of the data is given. When the calibration
is completed, Done! is displayed in the lower part of the menu.
Command Line Calibration
Visibility Calibration
When using the command line for visibility calibration, it can only be
performed on the advanced user level.
NOTE
For a proper visibility calibration, all the optical surfaces of the
transmitter/receiver measurement unit and PWD sensor have to be clean.
To perform visibility calibration by taking the PWD sensor MOR
reading, just enter the following at the command prompt:
1> calibrate visibility<CR>
The answer will be as follows:
PWD MOR taken:14458.3
BaseCalfact:1.24266e-06
CALIBRATION SUCCEEDED
To perform visibility calibration by taking an observer’s MOR
estimation, enter the reading in meters as an additional parameter.
1> calibrate visibility 15000<CR>
The answer will be as follows:
Given MOR taken:15000
BaseCalfact:1.24314e-06
CALIBRATION SUCCEEDED

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