Installation, Operation, and Performance Qualification
Revalidation Schedule
The purpose of revalidation is to ensure that already validated instrument systems remain up to date and
continue to be fit to operate.
ELITechGroup recommends the IQ, OQ, and PQ on a schedule to maintain qualification of the system,
unless instrument malfunction requires significant repair or service prior to the one-year recommendation.
If repair is required, revalidation is recommended. Routine maintenance is not considered repair.
Revalidation timeline depends also on operation conditions of the instrument, may be regulated by local
authorities and/or by the internal regulations of the company/institution in which it is installed.
On a routine basis, a daily precision test and a monthly check of the measurement system by means of the
adjustment tool is recommended.
A detailed description can be found in this User's Manual, Chapter Maintenance and Troubleshooting.
Revalidation determined by (name) .............................................. (date) ............................
Next Servicing as described in the
Service Guide should be performed on (date): ............................
COMMENTS
..........................................................................................................................................................................
..........................................................................................................................................................................
Date ............................
Completed by ..............................................
Date ............................
Verified by ..............................................
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