5.2 The keyboard
774 Oven Sample Processor, Instructions for use
57
Key
Normal state
Editing
START
Start a Method
•
The
<START>
key starts a
method. Starting is only pos-
sible when the 774 Oven
Sample Processor is in the
normal state, i.e. when ‘ready’
is shown in the display.
•
When starting a sample se-
ries, the sample counter is set
to 0.
•
When
<START>
is pressed
after an interruption
(
<HOLD>
), the sequence is
continued with the next com-
mand line.
Trace function
•
During editing of a sequence,
the command defined in the
command line can be directly
executed with the
<START>
key.
•
A sequence can therefore be
tested from start to finish (or in
parts) in single steps ("trac-
ing").
STOP
Stop process and peripheral
instruments
•
The
<STOP>
key terminates
a method.
•
Any peripheral instruments
that are connected (Titrinos,
etc.) are not automatically
stopped. In "
>manual stop
options
", a submenu of the
Parameter Menu, you can
specify what signal or data is
to be transmitted via the inter-
face involved (remote or
RS232) during manual activa-
tion of the
<STOP>
key. The
connected instrument can be
halted or if necessary, initial-
ized (see page 74). In addi-
tion, you can define whether
the oven heater and the pump
(resp. the solenoid valve) are
to be switched off or not.
•
During a manual halt of a
sample series with
<STOP>
,
the end sequence of the
method will not be executed.
•
The manual stop options are
also effective in the normal
state.
Stop editing
•
<STOP>
causes the editing
to abort and the instrument to
return to the normal state. (ex-
ception: Process sequences)
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