Fuse Replacement - Hach PHOSPHAX sc Addendum

6.1.4 Fuse replacement

6.2 Routine maintenance schedule
Description
Check measurement chamber and history of amplification
(event log).
Visual check analytical compartment, manual cleaning if
necessary.
Check filter pads, clean/ replace if necessary, particularly on
fan side.
Check reagents, replace if necessary.
Check cleaning solution, replace if necessary.
Check maintenance counters.
Function check of both fans.
Function check heating for analyser enclosure.
English
Important Note: Open the instrument door to prevent overheating.
CAUTION
Avoid injury. Keep hands clear. Although the fan is stopped,
work carefully to avoid injury in case of failure.
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 Maintenance mode.
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
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.
The fuses for the power supply are found in the sc1500 controller.
Refer to the sc1500 User Manual for fuse replacement information.
The maintenance schedule is given for standard applications.
Deviant applications may cause different maintenance intervals.
Table 2 Routine maintenance schedule
3 months
(Figure 10 on page
6 months
1
X
1
X X
1
X X
1
X X
1
X X
1
X X
X
X
Maintenance
20). If necessary, press
12 months 24 months
11