Operating the machine, 6 filling the vessel – Retsch CryoMill Autofill 50l User Manual
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Operating the machine
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Fig. 4: Level Display
Determination of the level in the vessel
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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 Ü bersc hriften/1.1 Übersc hriften BD A/11 Füll en des Behälters @ 2 \mod_1267774868556_9.doc @ 18870 @ @ 1
4.6 Filling the vessel
Pos : 6.17 /00010 Bedi enungsanleitung en Kapitels ammlungen/Cr yoMill/0016 LN 2 D ewar 50l/1603 Modul Dewar 50l Befüllen @ 2 \mod_1267698001736_9.doc @ 18834 @ @ 1
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Close all valves. (V1, V2, V3)
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Take the withdrawal hose (ZF) off the connection (SA).
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Attach the filling line to the connection (SA).
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Open the waste gas / overflow valve (V3).
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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).