91333/334 HPLC PUMPS | USER’S GUIDE
FRONT PANEL CONTROL
SEAL TEST COMPONENT
The seal test uses the supplied steel capillary tubing (part number 38013368), which is to be
connected at the outlet filter with water as the recommended solvent. In these conditions, the
pressure is generally reached before the default flow rate.
You can select any configured pump. The parameters are adjusted automatically by the software.
Seal Test Procedure
1. Connect the supplied capillary tubing to the outlet of the outlet filter.
2. Open the purge valve on the PPMM.
3. Press the Change soft key to select the pump head.
4. Press ENTER.
5. Enter a flow rate for the Installation Pressure Reached for Flow line.
6. Press ENTER to confirm selection.
7. Press the Start soft key to start the pump. The pump will stop automatically after two
minutes.
8. Press the End soft key to stop the pump, in case of emergency.
9. Close the purge valve on the PPMM.
10. Press the Continue soft key. The pump will run a preprogrammed sequence to finish the
procedure.
Leak Test
From the Start screen press Edit > GLP > Leak.
This test consists of pressurizing the pump at a user selectable pressure in a closed hydraulic
circuit. When this pressure is reached, the pump stops. If the pressure decay is less than 10%
over five minutes, the test is deemed successful. A successful test will result in OK being
displayed on the screen; otherwise, a FAILURE message is displayed. Check for leaks before
repeating the test.
LEAK TEST COMPONENT
The leak test uses the supplied plug (part number 490310478), which must be connected at
the outlet filter.
LEAK TEST PROCEDURE
1. Connect the leak test plug to the outlet filter.
2. Maintain or modify the flow rate (0.5 mL/min) and pressure (15 MPa) values by keying-in the
numbers for the Test Flow and Test Pressure fields and pressing ENTER.
3. Press the Start soft key to start the pump. In case of emergency, press the End soft key to
stop the pump.
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