7 Maintenance
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15.
Put the analyzer unit back in the measuring tank.
16.
Turn ON the power switch.
17.
Press the [ACTION] button on the MAINTENANCE screen.
Reference
18.
Turn the wiper motor ON and UV lamp OFF.
19.
Remove the analyzer unit from the measuring tank and confirm that the replaced
wiper blade rubber and sponge are in contact with the cell and the wiper blade
activate smoothly.
Note
As the wiper motor is operating, take care to handle so that fingers etc. are not caught in the
motor.
Care should be taken when handling the cell of analyzer unit so that it does not touch other parts
of the unit.
Before performing the work, confirm that the UV lamp is not illuminated. The UV lamp should not
be viewed directly when it is illuminated as it may damage your eyes.
If no button is pressed for about two hours on the MAINTENANCE - ACTION display, the display
automatically turns to the MEASUREMENT display. In this case, care should be taken as the
wiper motor and UV lamp may turn ON.
Clean the wiper within a few minutes. If operating the wiper without any solution for a long period
of time, it may damage the cell.
20.
Dip the analyzer unit in the calibration tank with zero solution.
21.
Warm up the unit for approximately 60 minutes, replace the zero solution, and
perform zero calibration.
Reference
"4.4.2 Common Zero Calibration" (page 21).
22.
Perform the span calibration as necessary.
Reference
"4.4.3 Common Span Calibration" (page 24).
23.
Put the analyzer unit back in the measuring tank, and turn the maintenance switch
OFF.
OFF
ON
