Metrohm 774 Oven Sample Processor User Manual

Page 64

5 Detailed description

774 Oven Sample Processor, Instructions for use

Key

Normal state

Editing

HOLD

LEARN

Interrupt Process
• The key interrupts

the processing of a method.
However connected periph-
eral instruments (Titrinos, etc)
are not halted. Only method
processing is interrupted.

• In the “HOLD" state a method

can be completely halted with
or continued with
the next command in line by
pressing .

• After quitting an error mes-

sage during method process-
ing the changer automatically
goes into the state.

Switch on LEARN mode
• The key serves to

start the Learn mode. This
mode is provided for easier
editing of process sequences.
It allows direct acceptance of a
parameter value that has been
set by manual control. LEARN
mode is available for the fol-
lowing commands:

LIFT, DOS, SCN, WAIT

• See page 34 also.

QUIT

Quitting error message
• With the key error

messages can be acknowl-
edged. Before acknowledg-
ing error messages, the cause
should be remedied.

• The command during which

the error message occurs will
nevertheless be carried out
(during manual operation).

• If an error occurs during

method processing the error
message is acknowledged by
pressing the key
and the method is interrupted
(HOLD state). Afterwards
can be used to
continue with the following
command line or
will halt processing.

lnterrupt processing of current
command line
• During the processing of a

method stops a run-
ning command and continues
with the next command. This
is useful when a programmed
waiting time is to be shortened
or when the expected signal
cannot be received during a
SCAN command.

Interrupt, select next highest
menu level
• With the key the active

(sub)menu or a menu or com-
mand line is exited. The next
highest menu level or the basic
state is selected.

• Any data from a menu or

command line which has been
changed will not be taken over
in this case. This will be sig-
naled by an acoustic signal.