2 oven heating, Oven heating – Metrohm 885 Compact Oven SC User Manual

Page 37

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4 Automation sequence

885 Compact Oven SC

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27

Move to the sample beaker

Lower lift, pierce vial, move vial into oven

Switch on the gas flow

Start the titration at the titrator

Record temperature and gas flow, wait for end of titration (EOD sig-
nal)

Print out the report (optional)

Switch off the gas flow

Move to the conditioning beaker

Lower lift, pierce vial

Switch on the gas flow

Wait while conditioning
The signal line Cond OK must be active for 60 s.

End sequence
This command sequence is run one time after the last sample sequence.
The parameter End of series can be used to control a slightly variant
behavior.

The following steps are carried out in sequence:

Switch off the gas flow

Move to the conditioning beaker, do not lower the lift

Stop titrator (only with End of series = Stop)
The titrator is not stopped with End of series = Conditioning, i.e.
the titration cell continues to be conditioned.

Switch off the oven heating

4.2

Oven heating

The target temperature of the oven is established as quickly as possible
with a high-performance heater and controlled by a reliable regulator. The
oven temperature is continuously corrected and maintained as precisely as
possible at the set value.

Note

The display always shows the oven temperature, not the temperature
of the sample in the vessel. This can deviate from the oven temperature
by several °C, because the flowing carrier gas cools the sample.

The heating is switched on automatically when the device is switched on.
The oven will be heated to the temperature defined in the currently loa-
ded method (see page 51).

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