Mettler Toledo QLX3 Benutzerhandbuch Seite 19

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 corresponding
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 lifetime 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
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 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)
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 cannot build up.
You can connect up to three bottles to each pump.
QLX3 liquid module
WARNING
1
2
3
5
4
4
3
1
1
2
13