230 AO2000 CONTINUOUS GAS ANALYZERS | OI/AO2000-EN REV. B
Validation
Validation procedure
Validation runs in principle just like an automatic calibration. The difference
is that during validation a measurement value deviation from the set point
values is not corrected automatically. Instead the procedure is as follows:
• When the (test gas) measurement values for start and end point are
within the respective limits provided with the parameters the success of
the validation is recorded in the logbook.
• When the (test gas) measurement values for start and end point are
outside the parameterized limit values the failure of the validation is
recorded in the logbook. Either the "Maintenance request" status is set
or a calibration of the sample component is performed.
Validation parameters
The parameter settings for automatic calibration (see page 227) also apply
to validation.
After selecting validation in the Operating Mode parameter, it must be set
• If the validation result shall be logged and
• If in case of a validation failure
• the "Maintenance request" status shall be set or
• the sample component shall be calibrated.
In the Test gas concentration parameter the start- and end-point limit
values have to be set for each sample component. If these limit values are
over- or undershot the validation is rated as failure.
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