Troubleshooting and Support
ACIST RXi System User’s Guide | 87901700-001,01 2019-09 English
Interpreting Status Messages
Status Message Purpose User Response
Zeroing... Informs that the system is zeroing
the aortic or pressure sensor.
Wait for zeroing to complete.
Connect Aortic Pressure Cable Instructs you to connect the aortic
pressure cable.
Ensure that the aortic pressure
cable is connected to the
hemodynamic system and the RXi
console.
Check Aortic Pressure Cable Displays when an aortic pressure
input failure has been detected.
Check the aortic pressure cable
connections to the hemodynamic
system and the RXi system
Aortic Pressure Out of Range Informs that the aortic pressure
signal is out of range.
If performing a ush, wait until
ush is complete. If this message
is still present, check to see if the
hemodynamic system is sending
correct signal.
Zero Aortic Pressure Instructs you to zero the aortic
pressure signal.
This step is done at system
installation and again before each
case. Prior to each case, open
the stopcock at the midaxillary
position, zero the hemodynamic
system, and press the zero aortic
button.
Connect Pressure Sensor Instructs you to connect the Navvus
MicroCatheter to the RXi System.
Insert the handle assembly
of the catheter in the Navvus
MicroCatheter connection port of
the RXi System Console.
Equalizing... Informs that the RXi System is
equalizing the aortic pressure and
the pressure sensor signals.
Wait for the signals to equalize.
Equalization Requires Positive
Pa
Informs that the Pa value is too low
(0 mmHg or less) to equalize.
Adjust the aortic pressure.
Ready to Equalize Displays when the aortic pressure is
connected and zeroed, the pressure
sensor is connected, and the
pressures have not been equalized.
Select the Equalize button
on the RXi main screen. The RXi
System will then equalize the
pressure signals.
Press Record to Start Displays when the aortic pressure
and the pressure sensor signals have
been equalized.
The system is ready to record.
Select the Record button on
the RXi main screen to start the
recording.
Press Stop to Finish Displays when the RXi System
is actively performing an FFR
recording.
Select Stop to stop the recording.
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