Hach-Lange PHOSPHAX indoor sc - Manual (Page 42)

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Maintenance
To change the fan filter:
1. Open the analyzer enclosure and the analysis panel.
2. Press ENTER.
3. The instrument counts the remaining time in seconds down to
zero and goes to SERVICE STATE.
4. Change the air filter pads as described on the controller.
5. Remove the fan locking screw and slide the retaining strap to
the top and remove ( Figure 10 on page 20 ). If necessary, press
the fan down to remove the retaining strap.
6. Slide the fan from the holding screws.
7. Clean the filter with soap and water and return to place.
8. Press ENTER.
9. Replace the fan. Make sure that the fan opening is positioned
downward. Attach the retaining strap (hold down the fan) and
install the fan locking screw.
10. Close the analyzer enclosure and the analysis panel.
11. Press ENTER.
The instrument will reset the maintenance counter and will start the
analysis again.
6.1.4 Fuse replacement
The fuses for the power supply are found in the sc1000 controller.
Refer to the sc1000 User Manual for fuse replacement information.