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Chapter 1 | Setting up
1
When the pump is opened, the correct
setting is 4.8 (or 3.2 depending on the
tubing diameter).
Turn the button on the side of the pump to
obtain the right setting.
2
Stretch out the 20 cm
tubing that goes
through the pump.
3
Insert the tubing
into the pump.
5
WRONG
RIGHT
The tubing is pinched.
The tubing is not pinched.
It can be pierced.
There is no risk.
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Diluflux Gravimetric Dilutor
± 5 cm
± 5 cm
4
Keep the tubing stretched
while you close the pump.
EN
Thermo Scientific
2. How to use
2.1 Safety precautions
Pay special attention to the platform under the BagOpen
connected to a very accurate and fragile weighing cell. There is also a
marking on the unit to remind users to pay attention to this specific part.
NB: For samples of less than 5 g, a tubing calibration must first be carried
out by dispensing a volume of 50 mL.
2.2 Keyboard functions
The interface is very user-friendly. You have:
•
9 keys indicating their function
•
11 display LEDs indicating the current stage of the process
•
2 control screens showing the mass of sample and the dilution rate
(when in dilution mode), and the mass to be dispensed (when in
dispensing mode).
2.3 How to use basics
The Diluflux dilutor consists of a weighing cell and one (or two) peristaltic
pump(s), controlled by a microprocessor.
Once a dilution has started, the microprocessor calculates the initial weight
(before activating the pump) and the target weight; it then activates the
pump. The microprocessor measures the total sample/diluent weight ten
times per second.
Thermo Scientific
2
. Ensure it is
®
EN
Diluflux Gravimetric Dilutor
|
11
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