1-CUBE GMDK Manuel de l'utilisateur - Page 9

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Check button (9) on the top of the device if it is in secured position (10b). Afterwards connect the

device by fixing of inlet hose (3) to the sampling point. The inlet hose (3) must be secured not to

fall out with the pressure.

If there is a big difference in diameters of the hose and sampling valve, use a reduction in the

supplied hose and the other one in another hose satisfactory for safe sampling. We recommend to

fix the hoses on the reduction with clamps.

Place the outlet hose (5) to the drain, the inlet valve (1) is shut during this handling. Afterwards

open fully the valve of the sampling point and let beer or saturated beverage go into the inlet hose

(3) to inlet valve (1). Open fully the inlet valve (1) on the device.

5.1.2 CO

ONTENT MEASUREMENT

Open both valves (1), (2) to let the sample fill in the transparent chamber

(6)

SLOWLY, to avoid

foam creation.

Let the beer flow through the device for at least 20s, 30s or more if you are rinsing the sample from

a previous measurement or if it's the first measurement and the GMD was stored in a warmer place

before.

Fill the transparent chamber (6) completely with the sample. Check visually if there is no foam or

bubbles inside the chamber (6)!

The device is on the ground during taking of sample.

Now first shut the outlet (2) valve, then the inlet (1) valve. Press the power button (12) to turn on.

Switch on the microcontroller by pressing the On key and when the device is ready, press the Enter

key. The GMD starts measuring continuously the pressure and waits for depressurization. You have

to open the outlet valve (2) to remove the overpressure from the tank. Open it slowly and close it

immediately after hearing the sound emitted by the buzzer and the display shows "close v.", which

indicates that the pressure is under threshold level. Then push out the button (9) of the secured

position (10b) and pull it out into the upper position (11) (look pic.2). Hold it for a while in this

position to equalize the pressure. Then press down the button (9) to the very down unsecured

position (10 a). After this handling dissolved CO

is fluttered and the pressure increases in the

chamber (6). Repeat this action one more time.

You should not pump more than three times to get good results and a good repeatability.

If the device was stored in a warm place before using it, the first measurement won't be relevant

because of big temperature variation.

Then lock the button (9) in the down secured position (10 b).

5.2.3 CO2 C

Then follow the procedure described in

ONTENT MEASUREMENT