Metrohm 761 Compact IC User Manual
Page 101
4.3 Systems
761 Compact IC
91
Suppressor
Suppressor
module:
Autostep with
Automatic switching to the next position each
time the injection valve is switched either to the
Fill
or to the
Inject
position.
Use peristaltic pump
If this option is disabled, the peristaltic pump is
not switched on automatically at the start of a
determination or with
Startup hardware
.
Polarity
Selection of the polarity of the output signal:
+
positive polarity (for anions)
–
negative polarity (for cations)
Measure channel
Display of the data source selected in the
Data
source
window (see section 4.3.5).
Hardware settings
Selection of the
Hardware
menu item using the right mouse button
opens the hardware settings window consisting of the three tabs
Hard-
ware
,
Outputs
and
Alarm stops
.
Hardware
This tab of the hardware settings window defines general parameters
which are set automatically at power on of the instrument.
Remote lines after power on
The remote output lines 1
…
8 are set to this val-
ues after power on or a manual stop with
Shut-
down hardware
.
Selection:
0
,
1
Thermostat
Operating temperature of the conductivity cell.
Selection:
25
,
30
,
35
,
40
,
45 °C
,
off
Thermostatting functions only if the ambient temperature is at least
5
°C lower than the operating temperature. It normally takes
30
…
60 min after power on until a temperature stability of
±
0.01 °C is
attained.