42 A-96.250.111 / 211019
AMI Trides
Maintenance
Control of dechlorination: Measuring value near 0 ppm:
7 days after
start-up
Perform a <Zero Trides> according to chapter Zero Tri-
des, p. 52
Daily up to
every 2 weeks
Check sample supply for dirt.
Clean all filters and strainers, if necessary.
Clean AMI Trides protection filter, if necessary.
Check sample flow.
Weekly (some
countries
daily)
Option pH: Perform Process pH.
Determine disinfectant value by manual DPD analysis
and, if necessary, perform <Process Trides>.
NOTICE: Before performing <Process Trides> flush
the instrument with chlorinated water.
Every 2
months
Option pH/Redox: Perform pH/Redox calibration.
3–4 Years Replace the reference electrode.
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