Metrohm 792 Basic IC - Manual (Page 167)

5 Notes – Maintenance – Faults
792 Basic IC
158
5.4 Diagnostic tests / Validation / GLP
The requirements of GLP (Good Laboratory Practice) include a peri-
odic check of analytical measuring instruments with regard to their re-
producibility and accuracy using Standard Operating Procedures,
SOP. Under the title «Application Bulletin No. 277 – Validation of
Metrohm Ion Chromatography Systems by using Standard Oper-
ating Procedures (SOP)» an example of such a standard operating
procedure is available from Metrohm; it can be adapted and used with
the 792 Basic IC.
Further information on the subjects of QA, GLP and validation can also
be found in the brochure « Quality management with Metrohm»,
which is available from your local Metrohm agency.
Testing of the electronic and mechanical function groups of Metrohm
instruments can and should be performed as part of a regular service
by trained personnel of the manufacturing company (see section 5.2.1).
All Metrohm instruments are equipped with start-up-test routines that
check for perfect functioning of the relevant assemblies when the in-
strument is switched on. If no error message is displayed, it may be as-
sumed the instrument is operating without faults.
The 792 Basic IC has an integrated diagnostic program which, in the
case of possible malfunctions or faulty behavior, allows the service
technician to check the functioning of certain assemblies and localize
the fault.