Chapter 6 ______________________________________________________________ Maintenance
VAISALA ______________________________________________________________________ 243
CAL Command
To calibrate the PWD sensor visibility signal, the opaque plates have to
be applied. When the opaque plates have been applied, the CAL
command can be executed.
Select execution of the CAL command by pressing C. The user has to
confirm the applying of the opaque plates.
Apply Opaque Glass Plates! Done? (yes/no):
To confirm, type yes<CR>.
To abort the action, type no<CR>.
The CAL command needs the Calibrator Signal Value which is printed
on the opaque plates, as a parameter.
Give Calibrator_Signal_Value:
Enter the Calibrator Signal Value and terminate the input by <CR>.
The PWD sensor response is displayed.
For details, refer to PWD22 User's Guide.
CHEC Command
PWD sensor calibration can be checked when the opaque plates have
been applied. When the opaque plates have been applied, the CHEC
command can be executed.
The CHEC command does not need any parameter.
Select execution of the CHEC command by pressing D. The user has to
confirm the applying of the opaque plates.
Apply Opaque Glass Plates! Done? (yes/no):
To confirm, type yes<CR>.
To abort the action, type no<CR>.
The PWD sensor response is displayed.
For details, refer to PWD22 User's Guide.
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