Welch Allyn Connex ProBP 3400 digital blood pressure device - User Manual - Manual (Page 70)

Possible cause Corrective action and explanation
recommends deflation no faster than 3 mmHg
per second.
Only use a sphygmomanometer that is calibrated.
•
An uncalibrated sphygmomanometer may result
in inaccurate blood pressure measurements.
Poor auscultatory sound recognition by observer Use high-quality stethoscope. Have a different
observer check patient’s blood pressure.
Cuff inflation and deflation with no blood pressure reading
displayed
Possible cause Corrective action and explanation
Leak in pneumatic system Inflation too quick; check NIBP cuff and
tubing connections may display.
Cuff pressure limits exceeded. Powering
down may display.
NIBP air leak; check cuff and tubing
connections may display.
Unable to determine NIBP; check inflation
settings may display.
Ensure all cuff attachments are tight.
Carefully check for leaks in the blood pressure cuff,
tubing, and pressure hose attached to ProBP 3400.
Arm movement during cycle
Unable to determine NIBP; check
connections; limit patient movement may
display.
Keep arm still during blood pressure cycle.
Movement may cause inaccuracies from artifact, long
cycle times, and error message.
Cuff tubing or pressure hose movement artifact Unable to determine NIBP; check
connections and tubing for kinks may display.
Do not contact cuff tubing or pressure hose during
blood pressure cycle.
Movement may cause inaccuracies from artifact.
User may have pressed the Blood Pressure
Start/Stop button
User cancelled NIBP reading will display. Press
the Blood Pressure Start/Stop button to
initiate blood pressure measurement.
No cuff inflation
Possible cause Corrective action and explanation
Connections between device and cuff loose Check all connections.
64 Troubleshooting Welch Allyn Connex® ProBP™ 3400 digital blood pressure device