Metrohm 732 IC Detector - Manual (Page 30)

2.6 Connection of 709 IC Pump
732 IC Detector / 733 IC Separation Center
23
2.6.4 Filter unit Manufit
The optional 6.2821.000 Filter unit Manufit (see section 7.3.1) is in-
stalled between the 709 IC Pump and the injection valve at the 733 IC
Separation Center. The filter unit serves to avoid contamination of the
piston seals by abrasive particles and can be used in the pressure
range 0 … 50 MPa (0 … 500 bar) for non metal-free systems together
with steel capillaries. It is installed as follows (see Fig. 12):
1 Prepare Manufit housing
• Insert outlet capillary 63 63 with steel mesh holding end 61 61 into
Manufit housing 62 62.
• Insert the 4 steel meshes 60 60 provided into the steel mesh
holding end 61 61.
• Press the PTFE gasket 59 59 into the steel mesh holding end
61 61.
2 Prepare Manufit pressure screw
• Insert inlet capillary 56 56 with counterpart end 58 58 into Manufit
pressure screw 57 57.
3 Assembly
• Fit the two capillary end pieces 58 58 and 61 61 together.
• Screw Manufit pressure screw 57 57 and Manufit housing 62 62
firmly together.
To replace contaminated steel meshes, proceed in the reverse order.
IC Separation
Center 733
IC Pump
709 56 56
57 57
58 58
59 59
60 60
61 61
62 62
63 63
Fig. 12: 6.2821.000 Filter unit Manufit
56 56 Inlet capillary
57 57 Manufit pressure screw
58 58 Counterpart end
59 59 PTFE Gasket (6.2821.010)
60 60 Steel meshes (6.2821.020)
61 61 Steel mesh holding end
62 62 Manufit housing
63 63 Outlet capillary