1-CUBE GMD User Manual Download Page 12

12 

 

Note: In case the connectors will not be put in the right way they will be damaged. This type 
of damage is not covered by manufacturer’s warranty. 

 

The device can be charged only with the supplied adaptor. Average charging time is about 8 hours 
and  the  voltage  of  a  charged  accumulator  is  nearly  19V. 

„Recharge  battery“

    is  displayed  under 

16.5V  and 

„Low  voltage“

    under  15.5V  The  charging  time  can  be  shortened  if  needed  but  the 

running period and the accumulator life-time will be shortened too. Once the charging of the device 
is over, unplug the adaptor and the connector from the device. Then screw the cap of the connector 
(13)  for protection and press the power button (12) to turn off.  

Notice:  If  the  power  button  (12)  is  switched  off  during  charging  than  the  accumulator    isn't 
charging.

 

5.2.3

 

CO

2

 

C

ONTENT MEASUREMENT  

 

Follow the paragraphs  5.1.1. and 5.1.2 and further: 

1)  Press  the  power  button  (12)  to  turn  on  and  then  press  the  key  ON  to  switch  on  the 
microcomputer. The text 

„1-CUBE“

 with the program version appears on the display for a moment.  

Then the following text appears:  

ENT.meas.

“   |   „

+ view.

“ 

 

2) Press the key ENTER. At the beginning of the measurement sequence, the pressure is measured 
and  displayed,  until  the  pressure  goes  under  the  threshold  value.  This  is  achieved  by  opening 
briefly the outlet valve (2). When the pressure is low enough, you will hear the buzzer of the GMD 
and the display shows "close v.", which indicates that you have to close immediately the valve (2). 
Now  you  can  start  releasing  the  CO

2

  from  the  beer  with  the  pump  on  the  top  of  the  GMD  (look 

pic.2). Push out the button (9) of the secured position (10b) and pull  it out into the upper position 
(11). 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

2

  is  fluttered  and  the 

pressure increases in the chamber (6). Repeat this action one more time.  Use it two times, not less, 
not  more,  then  be  sure  to  secure  the  piston  in  the  down  position.  Press  the  Enter  key  and  

measure

“  is  displayed.  The  program  waits  a  while  for  equilibrium,  then  the  measured  value  of 

pressure (

e.g. 140kPa

), followed by the measured value of temperature (

e.g. 5.0 °C

) appear on the 

display. 

Finally, the computed value of CO

content is shown 

e.g. 0.51 %bw

   |   

5.1 g/l

 

By  displaying  CO

2

  content  the  measurement  of  sample  is  over  and  the  CO

2

  value  is  saved  in  the 

GMD(K) memory. 

Press the key ENTER to finish the measurement, the text:  

ENT.meas.

“   |   „

+ view.

“ 

 

 

 The device is ready for next measurement. When the new sample has been taken, you just need to 
repeat this procedure to measure it. If it has been automatically shut off, switch it on as described 
above.

 

Press the power button (12) to turn off once the measurement is finished. 

Summary of Contents for GMD

Page 1: ...67 580 01 Havlíčkův Brod Czech Republic tel 420 569 433 620 fax 420 569 422 144 1 cube 1 cube com http www 1 cube com GMD and GMDK MEASURING DEVICE OF CO2 CONTENT IN FERMENTING TANKS AND KEG CASKS USER S GUIDE ...

Page 2: ...2 ...

Page 3: ...s 8 5 1 Measurement procedure 8 5 1 1 Taking of samples 8 5 1 2 CO2 Content measurement 9 5 1 3 Discharging of the sample 10 5 1 4 Cleaning of the device 10 5 2 Control of the electronics 11 5 2 1 Switching ON and OFF the device 11 5 2 2 Charging of the device 11 5 2 3 CO2 Content measurement 12 5 2 4 Reading recorded values of CO2 from memory 13 5 2 5 Deleting the content of the memory 13 6 0 CO2...

Page 4: ...l accessories withdrawal head for kegs 1unit Note accessories is not part of the supply only on customer s demand GMD is a measuring device for measurement of CO2 content in beer soft drinks and mineral water in tanks and KEG casks Note Adapted only for industrial application Whenever in the future GMD unit can be upgraded to GMDK unit if required With the comfortable version GMDK the CO2 measurem...

Page 5: ...5 2 0 INSTALLATION PUTTING THE DEVICE INTO OPERATION AND ITS MAINTENANCE Pic 1 GMD set front view rear view 2 8 9 4 1 3 3 1 4 12 13 6 5 2 Pic 2 Button position 10 11 ...

Page 6: ...2 Power button 13 Connector cover 2 1 TAKING OF SAMPLES The device is ready for measurement at the moment of delivery Preceding the own measurement connect the device by fixing of inlet hose 3 to the sampling point The measured sample must flow through stainless tube 4 to the bottom of the vessel The inlet hose 3 must be secured at the sampling point not to fall out during taking of sample under p...

Page 7: ...be filled with water during cleaning During rinsing pull out and consequently press down several times the button 9 to rinse both pump and capillary It is important to remove any traces of beer to prevent the piston getting stuck After rinsing Once the cleaning is over switch off the water cock Disconnect the inlet hose 3 from the water cock If you plan to use the device next day do not discharge ...

Page 8: ...ge of temperature measurement 0 30 C range of pressure measurement 0 600 kPa accuracy of CO2 content measurement 0 1 g l or in mass percentage 0 01 m accuracy of temperature measurement 0 1 C accuracy of pressure measurement 0 5 dimensions 280x180x300 mm weight of empty device about 1 5kg protection IP 54 with threaded cover on connector 5 0 OPERATING INSTRUCTIONS 5 1 MEASUREMENT PROCEDURE You can...

Page 9: ...s 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 ...

Page 10: ...ter Both ball valves 1 2 have to be open during rinsing Warning Pressure of water must not exceed value 250kPa Whole internal space of the vessel 6 must be filled with water during cleaning During rinsing pull out and consequently press down several times the button 9 to rinse both pump and capillary It is important to remove any traces of beer to prevent the piston of the pump getting stuck After...

Page 11: ...y for a second It is possible to work with the device for another 30 minutes If the device is not recharged during this time then the text Low voltage appears on the display and the device is shut down If you want to monitor how the battery is charged while working with the device press the rotation key the text battery appears on the first line of display and the voltage of the battery on the sec...

Page 12: ...ing briefly the outlet valve 2 When the pressure is low enough you will hear the buzzer of the GMD and the display shows close v which indicates that you have to close immediately the valve 2 Now you can start releasing the CO2 from the beer with the pump on the top of the GMD look pic 2 Push out the button 9 of the secured position 10b and pull it out into the upper position 11 Hold it for a whil...

Page 13: ... 5 2 5 DELETING THE CONTENT OF THE MEMORY The measured values can be deleted from memory at any time The memory capacity will be completely recovered 450 values and newly measured values will be saved in sequence 1 Press the key ON to switch on the device The text 1 CUBE with the program version appears on the display for a moment Then the following text appears ENT meas view 2 Press the key minus...

Page 14: ...n the second line At the same time these values are displayed in DataViewer program window in column in turn from the oldest value to the newest ones and also plotted on the graph These values can be saved into file with the Save file button Note the measured values are displayed in g l in DataViewer program 7 0 SERVICE For service contact the manufacturer 1 CUBE Hamry 3567 580 01 Havlíčkův Brod C...

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