Metrohm 818 IC Pump - Manual (Page 30)

4 Notes – Maintenance – Faults
818 IC Pump / 8.818.1023 Instructions for Use
24
valves, pressure rise and in extreme cases to scratched pistons. It is
thus essential to ensure that no precipitates can appear, e.g. when
the eluent is changed. Solutions used in direct succession must
therefore be miscible. If the system has to be rinsed with an organic
solution, several solvents with increasing or decreasing lipophilic
character may possibly have to be used (e.g. water ↔ acetone ↔
chloroform).
4.2 Maintenance and servicing
4.2.1 General information
Care
The 818 IC Pump requires proper care and attention. Excessive
contamination of the instrument 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 instrument the mains plug of the 818 IC Pump must be
immediately disconnected to prevent extensive damage to the
instrument electronics. Inform Metrohm service if your instrument has
been damaged in such a way.
The instrument must not be opened by untrained personnel. Please
comply with the safety notes in section Fehler! Verweisquelle konnte
nicht gefunden werden..
Maintenance by Metrohm service
Maintenance of the 818 IC Pump is best done as part of an annual
service performed by specialists from the Metrohm company. If work is
frequently performed with caustic and corrosive chemicals, it may be
necessary 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.