Buchi DuMaster D-480, Руководство по эксплуатации

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Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG
8 - Maintaining the instrument 189

Insert the new ash crucible into the combustion tube (4).

Place the combustion tube connection (3) onto the combustion tube (4). The lance must extend
into the ash crucible approx. 5 - 10 mm.

Place the ungreased seal on the combustion tube connection (3) at the top.
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 ash crucible (continued)
Proceed as follows:

Push the furnace back:

Lift the bayonet catch (1) slightly so as not to damage the seal on the combustion tube
connection.

Close the bayonet catch by turning the bayonet catch handle (2) to the left.

Close the ground-in clamp (5,3) on the Reductor again.

Connect the post combustion tube (7) with the two ground-in clamps (5) again.

Connect the O
2
supply tube (6) with a ground-in clamp (5).

Close the front door.
Phase 2: Follow-up work, gas pressure/ tightness
After completing all maintenance work, put the instrument back into a state ready for measurement.
See "Follow-up preparation of the instrument: Gas pressure / tightness" in Preparing and following up
maintenance work.
To be observed after maintenance
If you have performed maintenance work that has a defined maintenance interval, you must manually
reset the "Status" field to zero on the "Maintenance intervals" dialog (accessible via
Options >
Maintenance > Intervals
. See Defining maintenance intervals in the software.