Hach-Lange HACH 5500 sc Maintenance and Troubleshooting - Manual (Page 8)

Replace the reagent(s) or standard(s) before the level in the analyzer
bottle(s) is less than 10%. Measurements are not accurate when the
level is less than 10%.
1. Put the analyzer in shutdown mode. Refer to Put the analyzer in
shutdown mode on page 5.
2. When the status shows 100% completion, open the lower door.
3. Remove the cap from the reagent(s) or standard(s), then remove the
bottle(s) from the analyzer.
4. Install the new analyzer bottle(s) and close the lower door. Refer to
the operations manual.
5. Push menu and go to REAGENTS/STANDARDS.
6. Select RESET REAGENT LEVELS or RESET STANDARD LEVELS.
7. Select ENTER BLANK VALUE and enter the blank value from
Reagent 1.
8. For reagents, select PRIME REAGENTS and confirm.
9. When the reagent prime is complete, start the analyzer. Refer to
Put
the analyzer back into operation on page 5.
Replace the fuses
D A N G E R
Electrocution hazard. Fuses are not user-replaceable. Only authorized
service personnel must conduct the tasks described in this section of
the document.
D A N G E R
Electrocution hazard. Always remove power to the instrument before
making electrical connections.
D A N G E R
Fire hazard. Use the same type and current rating to replace fuses.
Refer to Figure 4 and Figure 5 to replace the fuses.
Figure 4 Access cover removal
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