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7
•
Maintenance and Service
Vanquish Pumps (VH-P10-A-02) Operating Manual
Page 167
7.9
Inline Filter
Follow the sequence of steps for the maintenance procedure that you
want to perform:
•
To test the inline filter for permeability, see the next section.
•
To replace the inline filter or the capillary mixer (volume: 25 µL)
connecting the purge unit to the filter inlet, see
section 7.9.2,
page 168
7.9.1
Testing the Inline Filter for Permeability
When
If you observe pressure pulsation, inconstant pressure, or high
backpressure at the column and pump
Additional items required
•
Water as solvent
•
Tissue
Follow these steps
1. Disconnect the capillary on the outlet of the inline filter.
2. To absorb the liquid leaving the filter, place the tissue under the
filter outlet.
3. Apply a flow of 2 mL/min using water.
4. Observe the pump pressure.
5. Depends on the pressure reading:
♦
Pressure is less than 0.8 MPa
Continue with the next step.
♦
Pressure is 0.8 MPa or higher
Replace the inline filter.
6. Reconnect the capillary to the outlet of the inline filter.
7. Test the pump for leakage (see
Summary of Contents for Vanquish VH-P10-A-02
Page 4: ...Contacting Us Page 4 Vanquish Pumps VH P10 A 02 Operating Manual ...
Page 10: ...Contents Page 10 Vanquish Pumps VH P10 A 02 Operating Manual ...
Page 30: ...2 Safety Page 30 Vanquish Pumps VH P10 A 02 Operating Manual ...
Page 46: ...4 Unpacking Page 46 Vanquish Pumps VH P10 A 02 Operating Manual ...
Page 80: ...5 Installation Page 80 Vanquish Pumps VH P10 A 02 Operating Manual ...
Page 232: ...11 Appendix Page 232 Vanquish Pumps VH P10 A 02 Operating Manual ...
Page 233: ...12 Index Vanquish Pumps VH P10 A 02 Operating Manual Page 233 12 Index ...