Reference Manual

Draft
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.
1
2
1 Using a tube cutter or a sharp knife, cut a sufficient amount
of tubing. The appropriate length mainly depends on the
distance between the bottle and the pump while dosing.
Recommended length: about 0.7m
2 Connect the air tube (1) to the air inlet of the bottle (2)
1
3
4
3 Insert the other end of the air tube (1) in a tube adapter (3)
and press firmly.
4 Connect the tube adapter (3) to one of the air outlets (4) of
the pump. Press until you hear a click.
When a tube is connected to the air outlet of the pump, the
valve of the air outlet opens. Never leave a tube that is
connected to the air outlet unconnected at the other end
because pressure can not be built up.
You can connect up to 3 bottles to each pump.
Connecting the muffler
1
2
− Insert the muffler (1) into the air inlet (2) to absorb the
noise.
Removing the air tube
NOTICE
Damage to tube connectors due to mishandling
If the tubes are not removed correctly, the connectors of the pump and the bottle cap can be
damaged.
− To remove the tubes, press down the ring on the connector and pull out the tube carefully.
Installation and Putting into Operation14 QLX3 Liquid Module