Fresenius Medical Care 4008 E Technical Manual page 176

Without display messages: calibrate single needle blood pump (SN pressure)
Set the hex switch in the module (P.C.B. LP 624, pos. 1) to position F.
Should the error message E02 appear on the blood pump display, clear the message by pressing
the Start/Stop key.
The SN pressure transducer
is open to atmosphere
(SN blood pump).
Press the Start/Stop key
on the SN blood pump.
Connect the syringe, which is
connected to the external
reference instrument, to the
SN pressure transducer.
Apply exactly 250 mmHg
to the pressure transducer.
Acknowledge by pressing
the Start/Stop key on the
SN blood pump.
The values are stored.
Finally return the
hex switch
to position 1.
Then
select
SN.BP-Rate CHECK
Check the SN stroke volume.
Set stroke volume,
e.g. 30 ml.
Using a syringe and the external
reference instrument, check
the lower (fixed to 75 mmHg) and
the upper switching point.
(Depending on the stroke
volume selected, the upper
switching point can be found
in the table).
If the switching points are
outside the tolerance range,
repeat the calibration procedure.
SN pump: lower switching point fixed to 75 mmHg
Stroke volume (ml)
Upper switching point
±
(mmHg) 7 mmHg
10 15 20 25
110 130 150 172
Fresenius Medical Care 4008 4/08.03 (TM)
30 35 40 45
195 219 244 270
50
299
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