Chapter 6 _______________________________________________________________ Maintenance
VAISALA _______________________________________________________________________ 133
8. The instrument continues:
Step 3/3
Remove zero plugs, install glass plates and enter
signal value (between 0 and 10): 1.3497
Is signal value 1.349700 correct?
Type YES or NO? YES
1st run
..............||||
Signal test PASSED. (1.3514)
Calibration procedure finished.
Calibration: PASSED.
Zero test: ok (0.0000, limit: absolute +/-0.0001)
Signal test: ok (0.1259, limits: recalibration +/-
0.0300 rejection +/-0.2000)
Remove calibrator assembly and type YES: YES
1>
9. Remove the zero plugs from the measurement unit transmitter and
receiver.
10. Install the calibrator assembly on the measurement unit as shown in
Figure 41 on page 129.
- The assembly is attached to the measurement unit and the
Scatter Signal Value is verified against the known scatter
simulation value of the calibrator assembly (Signal Value given
by the type label attached to the calibrator assembly). The test is
passed successfully when the evaluated Scatter Signal Value
deviates no more than ±3% to the known scatter simulation
value. For deviations above ±3% and up to ±20%, the
measurement unit calibration will be updated using the
parameters of the calibrator assembly in use. The test has failed
when the deviation is greater than ±20%.
11. Move away from the optical path and enter the signal value written
on the calibrator assembly to the data terminal.
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