Welch Allyn Connex ProBP 3400 digital blood pressure device - User Manual - Manual (Page 71)

Possible cause Corrective action and explanation
Device is being used in inclimate environment Ambient temperature is outside of operating
range. Retry measurement may display.
Operate the device within temperature range in the
Environmental specifications section.
Internal errors or messaging error occurred NIBP feature not functional. Call for service
may display.
Contact a Welch Allyn Service Center.
Cuff pops off
Possible cause Corrective action and explanation
Inappropriate cuff size See “Blood pressure cuff selection” to select correct
cuff size. If cuff continues to pop off, notify biomedical
department or Welch Allyn Technical Support.
Cuff not applied securely Smooth hook and loop securely before inflating cuff.
Cuff applied inside out Re-apply cuff. Verify that the Welch Allyn label is
facing away from arm.
Cuff deflating too slowly
Possible cause Corrective action and explanation
Patient movement Have patient sit still.
Do not have arm tight against chest wall, as
respiration may affect speed and accuracy of blood
pressure measurement.
Arrhythmia Check for regularity of heart rate (palpate pulse or
check device).
Moderate to severe heart rate irregularities may make
blood pressure difficult to measure accurately.
Small leak in pneumatic system Check cuff tubing and pressure hose for leaks.
Cuff inflates beyond SureBP inflation pressure preset
while device is in use
Possible cause Corrective action and explanation
Device switched from SureBP to Step algorithm If the device is unable to determine a blood pressure
while the cuff is inflating due to patient movement,
excessive noise, or an arrhythmia, the device will use
Directions for use Troubleshooting 65