49
Human NIBP Nano
Owner’s Guide
Normal AutoCals have either two or three pressure levels. However, if the
correct unloaded diameter can not be confirmed during a normal AutoCal,
additional pressure steps are added automatically (Figure A–6). This is
usually observed immediately aft er starting a new measurement and
when the smooth muscle tone is not stable. If these so-called multi-step
AutoCals are frequently observed during a measurement, accuracy of the
finger blood pressure may be reduced.
Special AutoCals with variable pressure levels
If, during a finger blood pressure measurement, the device is unable to
recognize beats, the PhysioCal algorithm uses variable pressure levels
instead of constant pressure levels during an AutoCal.
Figure A–5
Normal AutoCals with
either two or three
pressure levels.
Figure A–6
Multi-step AutoCal
