Wiring The Pump; Connecting The Tubes - Mettler Toledo Q3 Manual De Usuario

1 Air outlets (to bottle)
2 Pressure release button and indicator light
3 Air exhaust outlet

4.4.3 Wiring the pump

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-B port of the pump to one of the USB-A ports of the balance.

4.4.4 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 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 Liquid tube
2 Air tube
Preparing the liquid tube
Injury due to leaking liquids
Wrongly cut tubing can result in leaking connections.
The liquid dosing head is inserted in the liquid dosing
head support of the bottle.
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 balance and the bottle while
dosing.
Recommended length: about 0.9 m
2 NOTICE: Leaking liquid due to wrong assembly. Pay
attention to the orientation of the sealing ring when
threading it on the tube.
Place the sealing ring (1) on a flat stable surface, e.g., a
table or a workbench, with the wider end downwards.
3 Take the end of the liquid tube and press it into the
sealing ring.
This is the dosing-head end of the tube. The opposite
end is the bottle end.
14
CAUTION
Cut the tubes with a tube cutter or a sharp knife.
4 Socket for AC/DC adapter
5 USB-B port (to host)
6 Air inlet
1
1 2
0.9 m
2
2 3
D
Q3 Dosing Module