Watson-marlow PF6 User Manual download pdf (Page 12)

INSTRUCTION HANDBOOK

PF6

PF6 IH EN 74-105-022 v1.04.doc Version: 1.04 Page 12 of 30

Mount he correct tube lock (1) on

its dowel pin and place the tubes

in the dispenser head.

The Y-connector must be situated

to the right of the dispenser head.

It is important that the tubes are

situated in the two notches (2+3).

Now place the tube bridge in its

tracks and engage the two locking

pins.

4.6 Dispensing

4.6.1 Prime tubes

When the tubes and Y-connectors have been assembled and mounted in the pump head, the tubes

must be primed; priming tubes have the purpose of filling the tubes with the product.

First, place the product container.

Hold a collecting bowl under the filling nozzle(s) press the prime button.

Check that the tubes are free of bubbles and that the end of the tubes on the suction side, are under

the liquid surface. The suction tubes must not have contact with the container body.

4.6.2 Problems with drips

During filling drips can cause incorrect filling volumes and that the area underneath the filling nozzle

becomes contaminated. If drips occur the following can be tried:

 choose a smaller filling nozzle

 decrease speed

 increase acceleration

 use reversion

 mount a non-return valve

4.6.3 Problems with hard feed

When dispensing with small tubes, counter pressure on the pressure side of pump head might

constitute inaccuracy and instability in filling (hard feed). In some cases the problem can be resolved

by using a larger tube on the pressure side (after Y-connector).

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Watson-marlow PF6 User Manual Page 12