Hitachi CHROMASTER 5160 Instruction Manual page 49

(2) Constant pressure mode
As an example: flow rate at 1.0 ml/min, upper pressure limit
at 20.0 MPa, and lower pressure limit at 0 MPa.
Monitor screen
MANUAL
0
MANUAL: (FLOW=1, PRESS=2)
2
Select constant pressure mode (PRESS)
2 ENT
CONSTANT PRESS
0.2 – 4.000
Enter INITIAL FLOW rate and target pressure value
ENT
CONSTANT PRESS
* Before starting the pump operation, check that the
pressure level is 0 MPa.
NOTE: The liquid delivery won't start unless the starting
pressure is 0 MPa.
NOTE: The manual operation settings will be deleted when
power supply is turned off. Conditions must be set up
each time when turning on the power supply
NOTE: The pump noise will be changed with the operating
condition such as the flow rate, and the pressure.
NOTE: When liquid delivering is started during column
packing in constant pressure mode, the liquid
delivering flow rate or the pressure may increase
rapidly.
When packing a column: start liquid delivering in
isocratic mode, confirm that it increased to the target
pressure, and then switch to constant pressure mode.
3 - 12
INITIAL FLOW PRESS
1.000 20.0
FLOW PRESS
0.000 0.0
[MN]
C 1