Fresenius Medical Care 4008 E Technical Manual page 113

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Fresenius Medical Care 4008 4/09.03 (TM)
Description
Extracorporeal components
Arterial pressure transducer
Venous pressure transducer
Arterial and Single Needle
blood pump
SN switching points
Check the blood pump stop
alarm.
Air detector
Expected value / function
Check the slope of the pressure transducer.
After applying a pressure of approx. 200 mmHg to
the pressure transducer the value displayed must
agree with the reading shown on the external
reference meter (tolerance ±mmHg).
Correct any deviations with the calibration pro-
gram.
Check the slope of the pressure transducer.
After applying a pressure of approx. 300 mmHg to
the pressure transducer the value displayed on
the machine must agree with the reading shown
on the external reference meter (tolerance
±10 mmHg).
Correct any deviations with the calibration pro-
gram.
Check the blood pump rate (calibration program:
BP-Rate CHECK).
Check the switching points according to the table
in the TM.
Opening the blood pump door will trigger the
blood pump stop alarm after 30 s (factory setting).
In the event of a blood alarm, the venous line
clamp must close.
Generate a pressure of about 2 bar in the venous
bubble catcher.
Ensure that the pressure does not drop by more
than 0.1 bar within 3 minutes. (See chapter 3, Ad-
justment instructions.)