A-96.250.881 / 070622
AMI Codes-II O3
Instrument Setup
36
4.6. Calibration
See
Process Calibration of DIS, p. 50
Process DIS
A process calibration is only possible with a process value higher
than 10 ppb ozone. Please note that due to the low stability of the
ozone, a process calibration with an elevated concentration is pre
-
ferred.
Use CHEMATEST (or equivalent photometer) to determine the sam
-
ple disinfectant concentration. Take the sample directly from the flow
cell. Determine the sample disinfectant value by 3 manual DPD mea
-
surements. Calculate the average value. Compare this value to the
value indicated by the AMI.
Keep in mind the accuracy of your manual measurement. Only cor
-
rect the instrument if the difference is significant.
Perform process DIS if necessary. See chapter
for
details.
4.7. Commissioning
For pharmaceutical applications please follow the IQ/OQ/PQ proce
-
dures in the optional validation package.
