Using The High Pressure Gradient Mode; Direct Control Of The Pump; Maximum Pressure - Knauer Smartline Pump 1000 Handbuch

18
Fig. 14

Using the High Pressure Gradient Mode

Direct Control of the Pump

Maximum Pressure

SOP 6
Load Edit Prog
Prog Clear 0
GRADIENT MODE:
Link
View
Hold 0
Run 1
Example of a gradient setup with solvents A and B in all programs
If you want to control up to three additional Smartline Pumps 1000 for a
high pressure gradient, you can connect the appropriate number of
pumps using the serial RS232 interfaces according to "Using the RS232
Serial Interfaces in the KNAUER-Net" on page 34.
Activate "GRADIENT MODE" from the SETUP menu (see "Using the
SETUP Menu" on page 13) and select individual, unique names from
HPG A to HPG D for all of the pumps connected. The number of pumps
in your HPG system can be set by using the ON option in the second line.
Only the pumps selected with ON will be used for calculating the
percentage composition in a program.
The program sequence can be started from any pump in the HPG
system. The pump which is used to start the program sequence will
thereby become the Master pump and automatically assumes control
over all of the other pumps (Slaves).
If you want to use the Direct Control Mode you must first specify the:
Maximum system pressure
Flow rate
Solvent composition if working in LPG or HPG gradient mode
The maximum pressure limit for the current operating mode and/or
current program can be specified in any of the three following ways:
1. Selection of the pump head from the SETUP menu (see "Using the
SETUP menu" on page 12)
2. Direct input of the maximum pressure value on the PRESSURE
field from the main menu (see SOP 6).
3. By predefining the maximum pressure limits (PRESSURE LIMITS).
See the section "The SETUP menu" on page 12
In the case that the three values for the maximum pressure differ from
each other, the pump automatically uses the lowest value as P
Setting the Maximum Pressure
This SOP applies to the Smartline Pump 1000 Firmware Version 1.0X or
higher.
1. Move the cursor to the PRESSURE field (see item {1.4} in Fig. 3
on page 7).
2. Type in the desired value for the maximum pressure. The selected
value is marked with two vertical lines which indicate that this is a
programmed value and not a measured value (see also Fig. 6on
page 10).
3. Press any arrow key for confirmation.
Operating the Smartline Pump 1000
Flow Pressure Events
[ml/min] [0.1 Mpa] off 0
LPG
ON ON
Time %A %B
[min]
on 1 2
Setup
GLP
-- --
%C %D
.
max