Reference Manual

Table Of Contents

Draft

Installation and Putting into Operation16 Q3 Dosing Module

6 Using the micro dosing valve tool, slide the sealing

ring until the distance (D) is enough for the tube to

reach the bottom of the bottle. Recommended

distances for typical bottle volumes are listed next.

Typical distances (D) between the sealing ring and the

bottle-end of the tube

Thread Bottle volume Distance (D)

GL45 1000ml 220mm

500ml 170mm

250ml 135mm

GL25 25ml 90mm

Connecting the liquid tube

1 Insert the dosing-head end of the tube (1) in the

dosing head (2).

2 Tightly fasten the fastening nut to the dosing head.

3 Insert the bottle end of the tube through the corre-

sponding hole in the bottle cap (3). The tube should

reach the bottom of the bottle.

4 If needed, attach the suction filter (4) to the bottle end

of the tube.

5 Tightly fasten the fastening nut to the bottle cap.

6 Screw the cap to the bottle (5).

The suction filter is used to ensure that no particles or

impurities are carried through the liquid dosing head.

Using the suction filter will extend the life time of the

dosing head. However, when dosing solutions, molecules

of one of the substances might be absorbed by the suction

filter, altering the concentration of the solution. The suction

filter should only be used when dosing pure solvents.

Connecting the air tube

WARNING

Injury and/or damage due to reacting substances

When pressure is released from the bottle, the air/gas in the bottle moves back towards the

pump. The air/gas coming from the coupled outlets mixes in the pump. Molecules of the

substances in the various bottles can get in contact through this contaminated air/gas.

1 Do not connect bottles with incompatible liquids to the same pump simultaneously.

2 Before connecting a second, incompatible liquid to the pump, disconnect the first bottle

and purge the pump cavity with clean air/gas.