LBL-2008-41-v5 OptoMonitor 3 IFU_en Rev 2021-08
93
|
P a g e
Aortic Input Zeroing Failed
The transducer Pa Input zero cannot be performed under the following circumstances:
a.
Pressure is varying (such as pulsatile blood pressure).
b.
The difference between the transducer AO value and the Display Unit Pa value is
±200mmHg.
If the Pa Zero failed, in the case where zero has not been performed on Pa, the message”
Aortic zero
failed!
” is shown.
In the case where Pa has been zeroed once, and a zero value is stored in the memory, the message
“
Aortic zero failed, old value used”.
Ensure aortic stopcock is open to air.
1-
Ensure all connections are properly established.
Press the Ao Zero button to initiate the Pa zero.
Equalization Failed
“
Equalization aborted
”
Equalization will not be performed given the following conditions:
1-
There is 2x the difference between aortic and distal pressures.
2-
Poor or no connection between the systems, cables and pressure guidewire.
“
Equalization aborted, no signal
”
Equalization will not be performed when there is no Pa and/or Pd signal.
Re-Equalized
Equalization is normally performed only once at the beginning of the FFR or dPR assessment. Should a
new equalization be initiated by pressing the Equalizing button, the message “
Equalization already done
- Re-Equalize?
” pops up to warn from an eventually unwanted equalization.
Press YES to confirm or NO to abort.
Resetting Equalization
To reset equalization and restore Pd pressure to default value, press the EQUALIZATION button a second
time.
To avoid an extra step after an eventual restart, the equalization factor is NOT reset when the
instrument is restarted. The equalization parameters are kept in the non-volatile memory of the Gauge
Factor Connector within the OW.
GFC and OptoWire Mismatch
Each OptoWire is matched with its unique Gauge Factor Connector supplied in the same package. Both
must be inserted into the Handle Unit to allow operation.
Should a discrepancy be detected by the system, the AMBER LEDs on the Handle Unit will start
flashing.
The OptoMonitor 3 audio alert sounds 3 Medium tones.
A message "
Gauge Factor Connector
OptoWire mismatch
” is displayed on the Message Window.