Hospitex Diagnostics EOS Bravo and EOS Bravo Plus Service Manual
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39) insert the peristaltic pump tubing loosening the screw blocking the mobile part of the pump
in the way to free the vertical movement and make it go down to the bottom.
Insert the free end of the silicon tube coming from the flow cell into the two holes present on
the side of the mobile part.
Tear the tube from the exit hole until the two joining points of the tubes arrived to the mobile
part.
40) regulate the aspiration of the peristaltic pump from the screen of hardware test, pressing in
sequence the keys F5 (service), F3 (diagnosis) and again F3 (hardware test) starting from the
main menu and then evidence the line PM (peristaltic pump) of the motor’s table using the up
and down arrows.
Move the cursor into the column “p.index” and write the number 30000.
Loosen the blocking screw of the superior part in way to leave it free to move in a vertical way.
Press upwards the mobile part, which should squeeze the silicon tube , in the way to make it
arrive to a distance of about 1 mm form the pump reel and strengthen the blocking screw.
Insert the aspiration needle, connected to the flow cell, and the silicon tube coming out from
the peristaltic pump into a recipient containing distilled water.
Press the key F2 (motor ahead) and the pump will move executing 150 complete rounds during
which you should verify that the water is regularly aspirated though the needle and expelled
the silicon tube. Extract and immerge the needle into the water several times to see if the tube
connected to it is emptied and filled each time.
In case there are some irregularities you should loosen and move, pressing it more and less, the
mobile part of the pump until you achieve a regular aspiration and / or verify if there are any
leakage or obstruction in the tubes or in the flow cell.
If the pump is still during the regulation press again the key F2 to restart it.
Once you have obtained the requested regulation fix the blocking screw on the superior part
to bring it near to the superior board of the mobile part.
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