Metrohm 788 IC Filtration Sample Processor - Manual (Page 68)

4 Operation
788 IC Filtration Sample Processor
60
Key Normal state Edit mode
9
LIFT Positioning the lift
x Raises or lowers the lift to a
predefined position. These posi-
tions (work position, rinse position,
shift position, special position) can
be defined in the Configuration
menu as rack-specific.
x An absolute lift position in mm can
also be given.
Numerical entry ('9')
or
Positioning the lift
x The lift can be run to the predefined
positions (work position, rinse
position, shift position, special
position) in a sequence.
x An absolute lift position in mm can
also be given.
PUMP
4
Control pump
x The <PUMP> key is used to switch
the peristaltic pump of the 788 IC
Filtration Sample Processor on or
off.
x The state of the pump is shown in
the second display line in the nor-
mal state. 'PUMP+' means
"switched on", 'PUMP–' means
"switched off").
Numerical entry ('4')
or
Control pump
x The pump can be specifically
switched on and off in a sequence
or set to operate for a fixed amount
of time (in seconds).
1
SCAN Display input signals
x Display of the incoming signal or
data on the remote or RS interface.
This function serves to control the
data communication or states of
connected instruments.
x The first parameter represents the
interface selection. The signals for
data being received at that moment
are displayed as the second pa-
rameter.
x If the parallel remote interface ( Rm )
is selected, the signal states of the
incoming remote lines are dis-
played in binary form ( 1 = line
active, 0 = line inactive). Details
see section 5.1.
x If the serial RS232 interface ( RS ) is
selected, the character string being
received is displayed line by line
(14 characters). Details see section
5.2.
Numerical entry ('1')
or
Scan input signals
x In a sequence the SCAN command
causes method processing to stop
until the predefined bit pattern (with
the remote interface) or the given
character string (with the RS232
interface) is received.
x Predefined bit patterns are
available for the remote interface
and can be selected via simple
short-names (e.g. 'Ready 1' or
'End 2' ).
x Character strings consisting of 14
ASCII characters may be defined
with the RS232 interface.