Dr Piyush Tailor

Replace the filter in the following cases.

1. When the filter counter reaches 350 injections.
2. When the pressure is more than the pressure (which is indicated onthe column inspection report) +4 MPa.

Procedure - If the analyzer is not in STAND-BY state, wait for the assay to end and STAND-BY to be displayed.

1. Open the door below the display.
2. Remove the filter outlet (top) flow line. Turn it anticlockwise and do it carefully as plastic of flow line may get damaged
3. Turn the top of the filter holder assembly by turning it counterclockwise and remove the filter holder by pulling it straight out.
4. Lightly press the top of the holder to take out the old filter.
5. Place the new filter with great care of surface of filter. The gray colored surface is the outlet (up) side.
6. Firmly tighten the top of the filter holder assembly by hand until no further tightening is possible.
7. Place a tissue at the filter holder outlet and run the pump by pressing the PUMP key to remove the air inside the element. Check that no more bubbles come from the outlet side, and then press the PUMP key to stop the pump.
8. Connect the outlet side flow tube.