Metrohm 818 IC Pump User Manual
Page 25

3.3 Settings in the "818 IC Pump" window
818 IC Pump / 8.818.1023 Instructions for Use
19
Settings
The
Settings
tab of the
818 IC Pump
window contains basic settings of
the 818 IC Pump.
Pressure
Live display of current pressure in MPa.
Flow
Live display of current flow in mL/min.
New flow
A new flow can be set by moving the scroll bar,
by entering a value or by changing the value
using the up and down arrows.
Entry range:
0.01 ... 5.00 mL/min
Min/Max pressure
The
minimum and maximum pressure limit for
the 818 IC Pump can be set in steps of 0.1
MPa.
Entry range:
0.0 ... 30.0 MPa
.
The
set
maximum limit value should lie
between 5 to 10 MPa above the particular
operating pressure or the maximum admissible
operating pressure of the column used. If the
pump exceeds the preset limit value during
operation, it is switched off immediately. At the
same time, the
Pressure
field color in the 818
settings window is changed to the value set for
Out of range
.
The
set
minimum limit value should lie far
enough below the particular operating
pressure. If the pump pressure falls below this
preset lower limit during operation and this
pressure drop persist for several revolutions of
the pump cam due to leaks or interrupted inflow
of the eluent, the pump is automatically