Metrohm 761 Compact IC - Manual (Page 198)

5 Notes – Maintenance – Faults
761 Compact IC
188
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 chromatographs» an example of such a standard oper-
ating procedure is available from Metrohm; it can be adapted and used
with the 761 Compact 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 which
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 Metrohm company also supplies its instruments with an integrated
diagnostic program which, in the case of possible malfunctions or faulty
behavior, allows the service technician to check the functioning of cer-
tain assemblies and localize the fault.