Using The Ql3 Pump - Mettler Toledo QLX3 Benutzerhandbuch

Changing the bottle content
This procedure is used if you have a single cap with dosing head and want to change the liquid to be dosed.
The pressure is released.
1 CAUTION: Injury due to splashing liquids. Make sure that the pressure in the bottle is released.
Unscrew the cap.
2 Remove the suction filter, if applicable.
3 If the cap needs to be cleaned, remove the air tube.
Unscrew the fastening nut from the cap.
Rinse the cap with the appropriate solvent or liquid.
Insert the liquid tube into the cap.
4 If the liquid tube needs to be cleaned with a solvent, fill the bottle with the appropriate solvent.
Screw the cap on the bottle.
Insert the air tube on the cap.
Purge using the Purge function on the terminal.
Unscrew the cap.
Dispose of the remainder of solvent.
5 Attach a new suction filter, if applicable.
6 Screw the cap on the bottle containing the new liquid.
7 Check that the cap is tight.
8 Connect the air tube to the new bottle.
9 Purge using the Purge function.
Connecting the air tube to a different bottle
If you have more than one bottle equipped with cap and dosing head, and you want to use the same pump
outlet and air tube to dose from another bottle:
The pressure is released.
1 Install the dosing head on the dosing head support of the
bottle.
2 Unplug the air tube by pressing down the ring (1) and
simultaneously pulling out the tube (2).
3 To seal the bottle, insert the pin delivered with the QLL kit
(3) into the air tube connector.
4 Take the new bottle.
5 Connect the air tube to the new bottle.
6 To continue dosing with the new bottle, install the dosing
head.

5.1.5 Using the QL3 pump

Pressure indicator light
The pressure indicator light displays the status of the pump:
Light on: pressure is building up or pressure is established
Light off: there is no pressure and no pressure is building up
Light blinking: pump error and/or warning
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QLX3 liquid module
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