Metrohm 774 - Page 63

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)