2 maintenance and servicing, 1 general information, 2 shutdown – Metrohm 817 Bioscan User Manual
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5 Notes – Maintenance – Faults
817 Bioscan
58
5.2
Maintenance and servicing
5.2.1 General
information
Care
The 817 Bioscan requires proper care and attention. Excessive con-
tamination of the instruments could possibly lead to malfunctions and a
shorter service life of the inherently rugged mechanical and electronic
parts.
Spilled chemicals and solvents should be wiped up immediately. It is
especially important to protect the plug connections at the rear of the
instrument (particular the mains plug) against contamination.
Although constructional measures have been designed to virtually
eliminate such a situation, should corrosive media penetrate the
interior of the instruments the mains plug must be immediately
disconnected to prevent extensive damage to the instrument electron-
ics. Inform Metrohm service if your instrument(s) have been damaged
in such a way.
The instrument must not be opened by untrained personnel. Please
comply with the safety notes in section 1.4.1.
In the electronic compartment of the 817 Bioscan a lithium battery is
mounted. If this unit or battery needs service, dispose it according to
chemical waste only.
Maintenance by Metrohm service
Maintenance of the IC system is best done as part of an annual service
performed by specialists from the Metrohm company. If work is fre-
quently performed with caustic and corrosive chemicals, it may be nec-
essary to shorten the interval between servicing.
The Metrohm service department is always willing to offer expert advice
on the maintenance and servicing of all Metrohm instruments.
5.2.2 Shutdown
If the IC System is shut down for a considerable length of time, the en-
tire IC system (without column) must be rinsed free from salt with
methanol/water (1:4) to avoid crystallization of eluent salts with the cor-
responding subsequent damage.
For rinsing the separating column module is removed and bridged. The
flowcell must be turned off Rinse with methanol/water (1:4) until the
conductivity of the eluent drops below 10
µS/cm.