Buchi K-437, Operation Manual

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6 Operation
20
K-437 Operation Manual, Version A
Starting digestion
420 120
READY 422
Press the START button to start the heating
interval. The “READY” indicator on the display
shows that the set digestion temperature has
been reached. The samples with the suc-
tion module fitted can now be placed into the
digestion block.
The timer is started by pressing the START but-
ton again and the remaining digestion time is
indicated in the form of a countdown of figures
on the display. If the Scrubber is connected to
the K-437, it is started as soon as the START
button is pressed. If this is not the case, the
water jet pump must be started manually.
Editing the digestion parameters during the digestion process
420 120
READY 422 115
The inputs can be changed by pressing the
TEMP or TIME buttons. Press ENTER to con-
firm the changes.
420 120
RUN 422 86
End of digestion
420 120
FINISH 422 0
The heating is switched off at the end of the set
digestion time and a beep sound is audible to
inform the operator that the digestion process
is finished. The Scrubber continues to oper-
ate until the cooling time has ended or until the
STOP button is pressed. If “0” is entered for the
digestion time, no beep sound is audible and
the heating will not be switched off. The opera-
tor must observe the digestion time and, when
the procedure is finished, switch off the heating
by pressing the STOP button. The Scrubber
will continue to operate until the STOP button is
pressed a second time.