47
BÜCHI
Fat Determination
B-820/B-821
5 Operation
Procedure
The sample will be injected automatically. The corresponding
temperature program runs automatically in the background
according to the determination mode (see Chapter 3, Table
7). At the end of the determination, the venting flap opens;
the oven area will be conditioned in order to prepare the system
for the next determination. The evaluation takes place
automatically, and will be printed out depending on the printer
configuration (see Chapter 5.2.2).
The next injection takes place as soon as “Ready for Injection”
appears in the display (the “READY” LED lights up). This
procedure will continue until there are either no more sample
vials in the carousel or no more sample weights in the sample
weight table.
The number of injections per sample will be entered under
“Autosampler” in the “Setup” menu (see Chapter 5.2.4).
A maximum of 9 injections per sample vial are provided for the
“Total fat” option and a maximum of 6 injections per sample
vial for the “Fatty acids” option.
“Memory full” appears if the maximum number of injections
has been exceeded. The determination series will be terminated
prematurely in this case.
A determination series can be interrupted with the key combi-
nation “
SHIFT S
”. The determination that is currently running
will be ended, the syringe will be rinsed and the sample carousel
will be moved to its home position (Position 1).
The sample carousel may not be moved or be swung to the
side during a determination series. This will lead to a termination
of the series. Additional sample vials can be added at any
time, however, whereby the sample weight and/or factors
must also be added in the respective tables.
Figure 21a:
Factor determination report (short column)
with printout of the bottles; internal printout
