Note: For optimal performance, the minimum rinse water pressure should be 2.5 bar.
Install the dilution assembly as follows (the numbers in brackets refer to Figure 13):
1. Install the control valve on the panel (position 4 in Figure 10 on page 37).
2. Remove the overflow pipe (position 8 in Figure 4 on page 10) and install the dilution
assembly (13) in its place in the measurement cell using the Teflon washer and O-
ring.
3. Install the PE tubing 3.2/6.4 (14) between the control valve (12) and output A of the
dilution reservoir.
4. Install the PE tubing 3.2/6.4 (15) between the control valve (12) and output B of the
dilution reservoir.
5. Connect the cable (16) to terminals 6 and 7 of J14 in the electronic unit (refer also to
Figure 8 on page 18 and Table 6 on page 20).
6. Connect the compressed air between the outlet (19) and inlet (20) connections.
7. Adjust the opening and closing pressures of the system using the adjustment screw
(17). The system should close as slowly as possible.
8. Connect the sample to the input (10) with 12 mm internal diameter tubing (pressure
0.5 - 6 bar)
9. Connect the rinse water to the input (11) with 6 mm internal diameter tubing (pressure
2.5 - 6 bar)
10. Connect input P on the T connection (18) to the compressed air supply (pressure 4 -
7 bar)
Dilution reservoir
Figure 14 Dilution reservoir
1 Elbow fitting 5 Locking hole 9 Gasket
2 Reservoir stopper 6 Plunger 10 O-ring
3 Hydraulic plunger 7 Reservoir 11 O-ring
4 Connector opening 8 Gasket
Disassemble the reservoir as follows (the numbers in brackets refer to Figure 14):
1. Remove the connector (1) by unscrewing it from the reservoir.
2. Remove the stopper (2).
3. Pull and turn the plunger (3) until you see the locking hole (5) through the connector
opening (4).
4. Block the plunger (6) through the openings (4) and (5).
5. Unscrew the plunger (3).
6. Remove the plunger (6) by pushing on it.
7. Clean the two plungers (3) and (6).
8. Clean the inside of the reservoir (7) using a soft non-abrasive cloth.
9. Lubricate the gaskets (8) and (9) or change them if necessary.
Additional options
42
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