Parameter Menus Operations
2 - 62 0070-10-0666-01 Trio™ Operating Instructions
2.4.6.3 IBP Troubleshooting
MESSAGE/
PROBLEM REASON SOLUTION
SENSOR OFF, FAIL Transducer may be disconnected 
during attempt to zero
Check transducer and cables for 
connection. If problem persists, 
notify hospital technician or 
Customer Support
IN DEMO FAIL Monitor is in DEMO mode during 
attempt to zero
Turn monitor OFF. Turn ON to 
return to normal monitoring mode
PRESSURE OVER 
RANGE, FAIL
Stopcock not open to atmosphere Turn stopcock to atmosphere prior 
to zero attempt. If problem persists, 
notify hospital technician or 
Customer Support
PULSATILE 
PRESSURE, FAIL
Stopcock is not open to atmosphere 
and a pulsatile pressure has been 
detected
Turn stopcock to atmosphere prior 
to zero attempt. If problem persists, 
notify hospital technician or 
Customer Support
IBP SENSOR OFF IBP cable may be disconnected from 
monitor
Make sure that cable is properly 
connected
IBP INIT ERR1 Module failure Notify hospital technician or 
Customer Support 
IBP COMM STOP Module failure or communication 
failure
Notify hospital technician or 
Customer Support 
IBP COMM ERR Communication error Notify hospital technician or 
Customer Support 
IBP ALM LMT ERR Functional failure Notify hospital technician or 
Customer Support 
IBP SYS EXCEED Systolic pressure value exceeds 
measurement range
Check patient, notify physician
IBP DIA EXCEED  Diastolic pressure value exceeds 
measurement range
Check patient, notify physician
IBP MAP EXCEED Mean arterial pressure value exceeds 
measurement range
Check patient, notify physician
IBP NEED ZERO-
CAL
Zero calibration must be performed 
before measuring IBP
Zero calibration must be 
performed. Notify hospital 
technician or Customer Support.
Dampened Invasive 
Waveform
Air bubbles in tubing Eliminate air from tubing
Kinked invasive catheter Change position of catheter, check 
patient
Catheter against wall of blood vessel Check for leaks at connector, flush 
catheter
Blood in tubing Pump pressure bag up to 
300 mmHg
Catheter partially occluded Consult physician
IBP not Displayed / 
No Waveform
Cable not plugged in Check cable connections
Transducer not connected Check transducer connections
Stopcock turned improperly Check transducer for proper 
alignment
Transducer not zeroed Check and zero the transducer
Abnormally high or 
low readings
Transducer too HIGH or too LOW in 
relation to patient's heart
Check patient, adjust transducer, 
re-zero
To Purchase, Visit Avobus.com or call 1-800-674-3655