User Manual of CIC-D100 Ion Chromatograph
50
6 Maintenance
6.1 Removal of blocking units
When the flow path is blocked, the system pressure will increase or even exceed the bearing
capacity of the infusion pump, resulting in unstable system or abnormal peak output. Therefore,
the abnormal unit should be checked in time.
When the system pressure does not exceed the bearing capacity of the infusion pump, the
pipe joints can be removed from the REGEN OUT port of the suppressor in sequence according
to the schematic diagram of the system flow path shown in Figure 2-8 to observe the system
pressure. When the system pressure drops abnormally, it indicates that this connection is the pipe
blockage.
When the system is under a too high pressure and fails to operate, the components of the
flow path system should be connected one by one according to the flow path schematic diagram.
When the pressure rises abruptly, it indicates that this component is blocked.
If the blockage is in pipeline or joint, it can be removed by back flushing or replacing
fittings. Refer to section B.10 for back flushing operation.
6.2 Replacement of pipelines and joints
The uses of the pipes made of different materials with different diameters are shown in the
following table
Table 6-1 Pipe uses
Pipe type
Use
An inner diameter of 0.25mm
PEEK
Flow path connection
An inner diameter of 0.75mm
PEEK
The outlet of the conductivity cell enters
the suppressor part
