7 Maintenance
84
7.3
Maintenance of Analyzer Unit
7.3.1
Cleaning of Measuring Cell
Here describes the cleaning method of the measuring cell in the analyzer unit.
Perform maintenance approximately once a week.
Perform this maintenance work with the power ON.
1.
Turn the maintenance switch ON.
2.
Press the [ACTION] button on the MAINTENANCE screen.
Reference
Refer to "5.6.1 Action" (page 56).
3.
Turn the wiper motor ON and UV lamp OFF.
4.
Remove the analyzer unit from the measuring tank.
Note
When 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.
5.
Scrape off the contamination or alga adhered to the peripheral parts such as wiper
clamp, base, or roller around the cell.
Note
Do not scrape the cell (glass part) with a brush. The cell may be damaged.
While cleaning, do not tilt the analyzer unit 80 degrees or more from vertical.
Do not leave the analyzer unit standing alone. Put the analyzer unit on the calibration tank when
not using the measuring tank, for safe and easy handling.
The measuring cell is made of glass. Handle with great care so as not to break the glass.
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.
OFF
ON
Base
Wiper clamp
Roller
Brush
