Buchi DuMaster D-480, Руководство по эксплуатации

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Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG
8 - Maintaining the instrument 230
Note:
When you close the ground-in ball-and-socket joints, you must be able to feel an elastic
resistance when you press the o-rings into the pans, otherwise you must replace the o-rings.

Place the ungreased seal on the combustion tube connection (3) at the top.

Check whether the seals are in the pans of the plugs of combustion and post combustion tube.
Furnace area
The following picture shows the details of the furnace area:
Legend:
1 Bayonet catch
2 Handle
3 Connection Reductor
4 Ball valve fastening
5 Ground-in clamp
6 O
2
supply tube
7 Post combustion tube connection
Phase 1: Installing the reaction tubes, continued
Proceed as follows:

Push the furnace back:

Lift the bayonet catch (2) slightly so as not to damage the seal on the combustion tube
connection.

Close the bayonet catch by turning the bayonet catch handle (1) to the left.

Leave the end of the post combustion tube open.

Close the front door.
Phase 2: Conditioning the combustion tube, post combustion tube and Reductor
Proceed as follows:

Close the "Replace part" dialog in the operating software. To do so, click
Finish
in the "Replace
part" dialog. By doing so, the gas will be automatically turned on. and the atmospheric nitrogen is
removed by flushing with CO
2
for five minutes.