Manual

Operating the machine
20
Fig. 4: Level Display
Determination of the level in the vessel
• Read the Dewar flask level on the scale in the level display.
• Alternatively, you can use a dipstick to determine the level and compare it
with the level curve (see picture of Apollo® 50 level curve).
The black area on the level display scale marks 25% of the remaining contents.
Fig. 5: Level curve Apollo ® 50
Pos: 6.16 /00005 Ü berschriften/ 1.1 Überschrifte n/1.1 Überschrift en BDA/11 Füll en des Behält ers @ 2\ mod_126777486855 6_9.doc @ 18 870 @ @ 1
4.6 Filling the vessel
Pos: 6.17 /00010 Bedienungsa nleitungen Ka pitelsammlungen/Cr yoMill/0016 LN 2 Dewar 50l/16 03 Modul Dew ar 50l Befülle n @ 2\mod _1267698001736_ 9.doc @ 18834 @ @ 1
• Close all valves. (V1, V2, V3)
• Take the withdrawal hose (ZF) off the connection (SA).
• Attach the filling line to the connection (SA).
• Open the waste gas / overflow valve (V3).
• Open the withdrawal valve (V1).
• Fill the Dewar flask until liquid nitrogen comes out of the waste gas /
overflow valve (V3).
• Close the withdrawal valve (V1).