Reference Manual

Draft
4.3 Setting up the liquid dosing system
4.3.1 Interface of the pump
Rear
Front
11
22
3
3
4
4
5
5
6
6
1
Air outlets to bottle
4
Socket for AC/DC adapter
2
Pressure release button and indicator light
5
USB port
3
Air exhaust outlet
6
Air inlet
4.3.2 Wiring the pump
The instrument is supplied with an AC/DC adapter and a country-specific power cable. The AC/DC adapter is
suitable for use with:
100 – 240 VAC, 50/60Hz.
1 Install the cables in such a way that they cannot be damaged or interfere with operation.
2 Insert the plug of the AC/DC adapter in the power inlet of the pump.
3 Secure the plug by firmly tightening the knurled nut.
4 Insert the plug of the power cable into a grounded power outlet that is easily accessible.
5 Using the USB cable, connect the USB port of the pump to the USB device port of the balance.
4.3.3 Connecting the tubes
Tubes definition
The liquid tube is the thinner tube (1) used for transporting liquid
from the bottle to the liquid dosing head. The air tube is the
slightly bigger tube (2) used for pumping air into the bottle. By
adding air through the air tube, pressure rises in the bottle. When
the pressure reaches the configured target pressure, between 0.3
and 0.5bar (4.4 to 7.2psi), the micro dispensing valve in the
dosing head opens and liquid can ascend the liquid tube. .
1
2
1Liquid tube
2Air tube
Installation and Putting into Operation12 QLX3 Liquid Module