When
Filter clogged
Diagnostics script suggests replacing the filter
Parts required
Flowmeter filter kit
Tools and additional items required
Open-end wrench, size 13 mm
Solvent suitable to flush out harmful substances
Solvent suitable for your application
Parts affected
No. | Description |
---|---|
1 | Pump head |
2 | Capillary connecting pump head and flowmeter |
3 | Flowmeter filter |
Prepare the replacement filter.
Preparing the Replacement Filter
No. | Description |
---|---|
1 | Filter screw |
2 | Filter screw seal |
3 | Filter frit |
With your fingers, push the seal onto the filter screw until the seal rests on the receiving edge.
Pipette a drop of solvent into the filter screw and insert the filter frit. The solvent keeps the frit in the screw.
Follow these steps
Remove the capillary that connects the pump head and the flowmeter.
With the wrench, loosen the filter screw and remove the filter from the pump.
Insert the new filter and tighten the filter screw with the wrench.
Connect the capillary that connects the pump head and the flowmeter.
Purge the pump and flowmeter using the solvent for your application.
Inspect the connections for indication of leakage. Tighten leaky connections when the system pressure is down to zero.
Check that the new filter works correctly. Run the script: D01 - Test System Back Pressure.
Test the pump for leakage. Run the script: E04 - Detailed Leak test (Pump).