Metrohm 774 Oven Sample Processor User Manual

Page 63

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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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