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1921

12

User's Manual

DG 2+2 / DG 6 

Defattening Unit for the behrotest

®

 CF 2+2 / CF 6 

For 4 or 6 Samples, respectively 

Содержание DG 2+2

Страница 1: ...192112 User s Manual DG2 2 DG6 Defattening Unit for the behrotest CF2 2 CF6 For 4 or 6 Samples respectively ...

Страница 2: ... plug before opening the appliance Glass can break and cause injury In working with glass components observe all appropriate safety precautions Be careful in working with corrosive substances Follow the safety guidance in the pertinent Safety Data Sheets Caution acetone and petroleum ether are inflammable Perform all procedures working with organic solvents in the optional defattening unit DG2 2 D...

Страница 3: ...e behr after sales service immediately upon discovery of the damage The same applies in the case of any other complaints Address behr Labor Technik GmbH Spangerstrasse 8 D 40599 Düsseldorf Germany Telephone 49 211 7 48 47 17 Telefax 49 211 7 48 47 48 E mail info behr labor com Please check the contents against the following list Parts list Defattening unit Crucible rack for docking to the DG2 2 DG...

Страница 4: ...ach suction nozzle If later on you want to change a sieve take it out of the nozzle with a pin Inserting the crucibles in the multi crucible snapper On delivery the filter crucibles and the heat shield come packed separately insert them in the device now Insert the crucibles in the crucible rack Push the multi crucible snapper on the crucibles Inserting the crucibles in the device Release the lock...

Страница 5: ... acetone first to remove water And at the very end the sample is washed with acetone to make drying easier These procedure steps must not be carried out in the DG2 2 DG6 digestion unit For these steps there is the optional defattening unit DG2 2 DG6 The defattening unit has no condensers and no IR radiator or any other kind of heating but instead it has two separate suction pumps so you can collec...

Страница 6: ...ing unit DG2 2 DG6 Turn all valves in Closed position Pour 30 ml petroleum ether 40 60 C into each crucible With the right switch switch the petroleum ether suction pump on Now turn the first valve in Petroleum position and have the first sample sucked dry Turn this valve back to Closed and have the second and all other sample sucked dry one after the other in the same way Repeat the defattening p...

Страница 7: ...ainer If it has not yet been done insert the crucibles containing the samples in the defattening unit DG2 2 DG6 Turn all valves in Closed position Pour 30 ml of 0 5 molar hydrochloric acid into each crucible and let it work for one minute Switch the acetone suction pump on with the left switch Now turn one after another each of the valves into Acetone position and have the content of the crucible ...

Страница 8: ...t and lift the retai ning pin upwards out of the groove Pull the cover of the pump head off You need to tilt it a little then pull it downwards Replace the tubing complete with end nipples as required Now the pump hose and rotor are lying open before your eyes Check if the pump hose is still intact or if you need to replace it In order to change the pump hose Pull the connector pieces of the old h...

Страница 9: ... DG6 crucible receptscle is the same one as in the Crude Fiber device Check if any filter aid has got jammed on the sealing ring and if need be change it There is a flat sealing ring of the same kind below each of the charging funnels that are pressed on top of the crucibles if this ring need be replaced as well force it off its seat using an appropriate device say a narrow wooden spatula and push...

Страница 10: ...ble 30 ml for crude fibre unit 6 pcs B00658875 Pump hose for the peristaltic pumps for DG with connector pieces B00668980 Pump head for the peristaltic pumps B00491177 Sensor for monitoring the maximum fill level PP B00210222 Container 20 l opening 49 mm inner ø B00177003 Flat sealing rings for DG2 2 DG6 10 pcs B00521028 Technical Data Dimensions WxHxD approx mm Digestion unit DG2 2 DG6 De fatteni...

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