Knauer Smartline Pump 1000 Handbuch Seite 14

Control of the Smartline Pump 1000
SOP 3
GRADIENT MODE: The Smartline Pump 1000 is capable of isocratic
(none), high pressure gradient (HPG) and low pressure gradient (LPG)
operation.
The gradient mode can be selected by following SOP 3 "Selecting a
Gradient Mode".
Selecting a Gradient Mode
This SOP applies to the Smartline Pump 1000 Firmware Version 1.0X or
higher. Use this SOP for selecting a gradient mode.
1. Select "GRADIENT MODE" from the SETUP Menu.
2. Select the desired mode of operation (none/HPG/LPG).
3. If you select either the high or low pressure gradient (i. e. HPG or
LPG) you need to specify the channels used by each of the
solvents:
LPG: Choose up to 4 channels (valves), from A to D
HPG: Choose names for each pump, from HPG A to HPG D
4. Move to the second line by pressing the
A to D (for LPG mode) or names for each pump actually present
(for HPG mode) for each of the corresponding positions by
pressing either the
programs and define the number and names of solvents used in
any gradient.
If after leaving this item over the rhombus the message "Conflict with
existing programs" appears, this means that programs with a different
valve or pump configuration already exist. In this case, either delete these
other programs according to SOP 15 "Modifying and Deleting Programs"
on page 24 or change your valve or pump configuration correspondingly.
Fig. 14 on page 18 gives a detailed example for gradient mode selection.
PUMP HEAD: From here the type of pump head installed on your pump
can be defined. The pump head selection serves as the basis for how the
flow rate is calculated and sets the maximum system pressure in
accordance with that maximum flowrate. The maximum pressure applies
to all modes of operation and cannot be exceeded. Two parameters are
available (10 ml and 50 ml, corresponding to the 10 ml and 50 ml pump
heads) for setting the maximum volume of the pump head installed.
PRESSURE AUTOZERO: An offset correction for the pressure
measurement on the display can be made from here. First, open the
purge valve by turning the de-aeration screw (see item {4.3} in Fig. 4 on
page 8) one turn to the left. Select the menu with the
autozero routine by pressing the
carried out automatically.
FLOW: You can enter a correction constant for the selected flow rate in a
preset range [4000 - 6000]. This correction changes the number of pump
cycles at a selected flow rate. This option allows for compensation of the
flow rate when using solvents with differing compressibility.
Only trained users should change this setting! Select the menu with
the key, position the cursor on the desired numeric field and adjust the
values using the or
The correction parameter (see Fig. 9) is not accessible and normally
need not be modified. This parameter can be accessed by authorized
maintenance personnel only.
PRESSURE LIMITS: The minimum and maximum system pressure limits
can be set here. The pump will stop automatically when the system
pressure exceeds these set limits.
or key. This selection will apply for
or key. Offset correction is then
keys.
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key and choose valves
key and start the