Metrohm 774 Oven Sample Processor - Manual (Page 148)

6 Appendix
774 Oven Sample Processor, Instructions for use 142
6.3 Maintenance and servicing
6.3.1 Maintenance / service
Maintenance of the 774 Oven Sample Processor should be performed
within the framework of an annual service carried out by technical personnel
of Messrs. Metrohm. If you frequently work with caustic and corrosive
chemicals, shorter maintenance intervals will be necessary.
The Metrohm Servicing Department offers technical advice on maintenance
and servicing of all Metrohm equipment at any time.
Within the framework of the annual service, the oven block mounting should
be adjusted since precise alignment thereof is absolutely essential for
safely lowering a sample vial into the oven chamber.
6.3.2 Servicing / care
Not only highly sensitive measuring instruments but also other laboratory
apparatus items require appropriate care. Excessive soiling of the unit may,
under certain circumstances, lead to malfunctions and a shorter service life
of the mechanical and electronic systems of your unit which are robust in
themselves.
Heavy soiling may lead to influencing of measurement results. Regular
cleaning of exposed parts can largely prevent this.
Spilt chemicals and solvents should be removed immediately. Above all,
the connector strips (in particular the mains connector) should be protected
against contamination. The 774 Oven Sample Processor should never be
operated without the scheduled covers fitted.
The oven chamber must be kept free of chemicals and dirt. Clean the oven
block regularly.
Even though penetration of aggressive media to the unit's interior should be
largely prevented by design measures, you should immediately disconnect
the mains plug if this occurs in order to prevent massive damage to the
equipment's circuitry. Inform Metrohm servicing personnel of such damage.
The unit may never be opened by untrained personnel.
It is advisable to check adjustment of the sample rack from time to time;
see Page 12.