Metrohm 732 IC Detector - Manual (Page 143)

5 Notes – Maintenance – Faults
732 IC Detector / 733 IC Separation Center
136
5.1.4 Suppressor module
To avoid contamination of the suppressor module by foreign particles
or bacterial growth, it is advantageous to install an in-line filter be-
tween the 752 Pump Unit and the suppressor module. The two
6.2821.100 Filter units PEEK (see section 2.6.3 and section 2.8.3)
supplied with the 2.733.0X30 IC Separation Center are eminently suit-
able for this purpose.
5.1.5 Connections
All connections between injector, column and detector must be as
short as possible, have a low dead volume and be absolutely tight. The
PEEK capillary after the detector block must be free from constriction
(the measuring cell is tested to 5 MPa = 50 bar back pressure).
5.2 Maintenance and servicing
5.2.1 General information
Care
The 732 IC Detector and 733 IC Separation Center require proper care
and attention. Excessive contamination of the instruments could possi-
bly lead to malfunctions and a shorter service life of the inherently rug-
ged 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 of the 732 IC Detector must
be immediately disconnected to prevent extensive damage to the
instrument electronics. 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.
Maintenance by Metrohm service
Maintenance of the 732 IC Detector and 733 IC Separation Center is
best done as part of an annual service performed by specialists from
the Metrohm company. If work is frequently performed with caustic and