Chapter 6 _______________________________________________________________ Maintenance
VAISALA _______________________________________________________________________ 177
FSM102 Guided Calibration Procedure
As an alternative to the calibration procedure described above, the
calibration can be carried out interactively, guided by instructions by the
FS11P software, as described below.
The Guided Calibration Procedure is a combination of three individual
steps, and requires the FSA11 Calibration Kit.
- The first step verifies that the transmitter and receiver windows have
been cleaned.
- During the second step the system Offset Signal is verified.
- In the third step the opaque glass plates are installed to the
measurement unit to simulate a defined scatter signal in order to check
or adapt the visibility calibration.
If any of the tests fails, it can be repeated up to two times. If any of the
tests finally fails, the visibility calibration of the measurement unit is
reported as invalid and the data values are invalidated.
Once the Guided Calibration Procedure has started, it has to be
completed either as passing or as failing. The procedure cannot be
aborted or suspended. At the end of the Guided Calibration Procedure a
summarizing report is generated.
1. Give the CALIBRATE FS11 command.
2. The instrument responses:
Step 1/3
Clean Windows and type YES: YES
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3. Clean the measurement unit windows.
- Use a soft, lint-free cloth and a suitable window cleaning
detergent to clean the windows.
- Use a soft, lint-free and dry cloth to remove remaining detergent
residues entirely.
- Be careful not to scratch the window surfaces.
- Use a flashlight for looking into the hoods to verify that the
windows are clean.
4. Type YES and press enter.
The test step can take up to two minutes.
5. The instrument responses:
Step 2/3
Install Zero Plugs and type YES: YES
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