Welch Allyn CardioPerfect Workstation SpiroPerfect Module - User Manual - Manual (Page 88)

CardioPerfect Workstation
SpiroPerfect Module
– User Manual
DIR 80012334 Ver. F 88 / 95
18.3 Troubleshooting
Condition Solution
Flow sensor is not responding 
Check if the flow sensor is switched on
(switch located on the bottom of the
device)

Check if the device is connected both to
a COM port (for communication) and to a
PS2 port (for power)

Check if the COM-port settings in the
CPWS settings menu correspond with
the used COM port
Measured values are incorrect

Check the turbine. Take it out of the
device and move it freely in the room so
that air streams through it. The fan
should rotate when you move it and stop
quite abrupt when the movement is
stopped (provided there is no draft in the
room. If the vane does not rotate freely,
the turbine probably needs to be
replaced.

Do a volume calibration to check the
gain-factor and to recalibrate the device if
necessary.
Registration of low volume rates 
Rotor has been overtightend after
disassembly or there is some mechanical
friction. Disassemble device and
re-assemble correctly.
Indistinguishable Pre and Post curves
on printed reports 
A color printer and a color printout are
recommended for printing Spirometry
reports. Printing these reports with a
monochrome printer or in black and white
can lead to confusion as it is not easy to
identify which curve is a Pre and which is
a Post effort.