Calibration Errors; Process Calibration Dis; Verification Errors - Swan Analytical Instruments AMI Codes-II O3 Operator's Manual

AMI Codes-II O3
Troubleshooting
7.2.
7.2.1
Possible error
message
7.3.
Possible error
message
58

Calibration Errors

Process Calibration DIS

Slope error:
Possible cause
Wrong manual measure-
ment.
 Wrong reagent mixture
 Reagents not
completely solved in
water.
 Reagents older than 30
days.

Verification Errors

Invalid zero measurement:
Possible cause
Gas bubble in the pho-
tometer.
Verification error
Possible cause
Deviation between mea-
sured value and refer-
ence value is too high
Corrective Action
Repeat the manual measurement.
Use fresh reagents.
 Make a correct mixture.
 Mix long and intensively.
Corrective Action
Rinse the photometer with sample for
1-2 minutes and repeat the verifica-
tion.
Corrective Action
 Clean the verification filters
according to Cleaning, p. 48
repeat the verification.
 If filter cleaning does not result in a
successful verification, clean and
rinse the photometer according to
Cleaning the Photometer, p. 51
repeat the verification.
 If the problem perists, call service.
A-96.250.881 / 070622
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