Metrohm 850 Professional IC Cation - Prep 2 - Manual (Page 95)

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4 Operation and maintenance
850 Professional IC – Cation – Prep 2
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4.11 Injection valve
4.11.1 Protection
To prevent contamination of the injection valve, a 6.2821.120 inline filter
(see Chapter 2.11, page 40) should be mounted between the high pres-
sure pump and the pulsation damper.
4.12 Conductivity detector
4.12.1 Maintenance
Caution
The conductivity detector must not be opened!
Warning
When rinsing the detector, the pressure must not exceed 5 MPa. In
order to ensure this, the maximum pressure of the high pressure pump
must be set to 5 MPa in MagIC Net.
If the conductivity detector is blocked, you should first of all check
whether the blockage results from the capillary ends being pressed
together too firmly. In this case, shorten the detector input capillary (31-3)
or the detector output capillary (32-2) by several millimeters.
If this does not help, the conductivity detector can be rinsed against the
normal flow direction. For this, connect the high pressure pump to the
detector output capillary (32-2) and rinse - the pressure may not
exceed 5 MPa.