Fresenius Medical Care 4008 E Technical Manual page 199

Without menu display: adjustment of the Hall sensor inside the heparin pump
– Remove plug connector from Hall sensor 2.
– Move the slide carriage down over Hall sensor 1.
– Move the slide carriage up to its fully open position.
– Move the slide carriage down again to the end of its travel.
– The free motion between the slide carriage and the housing should be approx. 0.5 mm. If
necessary, change the position of Hall sensor 1 and repeat the procedure.
Adjustment of Hall sensor 2
– Reconnect plug connector for Hall sensor 2.
– Move the slide carriage down to approx. 2 cm before the end of its travel.
– Manually turn the threaded spindle approx. 2-3 rotations in delivery direction.
– Move the slide carriage down.
– The slide carriage must stop before the mechanical end of its travel. If necessary, change the
position of Hall sensor 2 and repeat the procedure several times.
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Fresenius Medical Care 4008 4/08.03 (TM)
Hall sensor 1
Hall sensor 2