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AMI Codes-II
Maintenance
6.
Maintenance
6.1.
Maintenance Schedule
WARNING
Stop operation before maintenance.
Stop sample flow.
Shut off power of the instrument.
If pH option is installed:
Daily (dirty water)
up to every
2 weeks (clean
water)
Check sample supply for dirt.
Clean all filters and strainers, if necessary.
Clean AMI Codes protection filter, if necessary.
Check sample flow (see also
)
Every 2–4 weeks
Clean reagent canisters and prepare new reagents.
Let instrument run for 1 h. Make 3 manual measure-
ments. Compare average value to displayed value. If nec-
essary, perform process calibration.
Monthly
Recommendation: Check photometer with verification kit
Yearly
Exchange reagent pump tubes, see
.
By occurrence:
E020, FOME dirty:
Cleaning the Photometer, p. 54
E022, Reagent empty:
Refill or replace Reagents, p. 44
E065, Reagents low:
Refill or replace Reagents, p. 44
Weekly
Perform a process calibration
,
see
Every 2 months:
Perform a standard calibration
,
see
.