Buchi DuMaster D-480 User Manual download pdf (Page 110)

Operation Manual D-480 ©BÜCH Labortechnik AG

6 - Starting up and shutting down the instrument 110

 Filling the drying tube (on page 234).

 Filling the combustion tube (on page 222).

 Filling the post combustion tube (on page 223).

 Filling the reduction tube (on page 224).

 Install the required glass and quartz components. Leave the tube outlets open for subsequent

conditioning. Used tubes also need to be conditioned. See

 Installing reaction tubes in the furnace and conditioning (on page 229).

 Removing and installing the drying tube (on page 236).

The instrument is now ready for switching on.

Phase 2: Instrument must be ready to measure

Proceed as follows:

 Perform all steps of the switching on process. See Switching on (on page 114).

 Switch on the operating gases. See Default instrument settings (on page 114) for

recommended gas pressure.

 Launch the operating software. The standard operating parameters are factory-set and do not

have to be optimized by the user. See Starting the operating software (on page 130).

 Select the desired operating mode from the Mode menu. See Selecting the operating mode

(on page 131).

 Heat up the furnaces and check parameter settings. See Heating up the furnace / checking

parameters (on page 118).

 Define the main settings for measurement. See Measurement settings (on page 120).

The instrument is then ready to measure.

Phase 3: Performing instrument checks

Proceed as follows:

 Perform a leak test. See Performing a leak test (on page 242).

 If the leak test reveals any leaks, eliminate them.

 Conditioning newly installed and used tubes For used tubes, humidity must be eliminated by

baking them out for at least two hours. See Installing reaction tubes in the furnace and

conditioning (on page 229).

 Check proper working order of the instrument by means of

 Blank value determination

 Conditioning measurement,

 Standard measurement

Observe gas flows and pressures. See Performing routine measuring work (on page 140).

 After routine measuring work you can measure real samples. See Performing measurement

work (on page 136).

Connecting peripherals

Note

The following section is part of initial start-up. All steps described in initial startup before connecting

peripherals must have already been performed. See Start-up (on page 109).

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Buchi DuMaster D-480 User Manual Page 110