12 Monitoring Invasive Pressure
d. Open the port to the manometer.
1 Tubing to manometer
2 Syringe with heparinised solution
3 To pressure connector on monitor
4 Patient connection stoppered
Move the syringe barrel in and raise the mercury to 200 mmHg (30 kPa). 200 mmHg is the
recommended calibration pressure.
Select the calibration pressure from the list, for example 200 mmHg.
When the monitor displays
the manometer tubing, syringe and extra stopcock. We recommend you replace the transducer
dome and tubing with sterile ones.
Label the transducer with the calibration factor shown in the
Reconnect the patient and start measuring again.
Troubleshooting the Pressure Calibration
The status line lists the probable cause of an unsuccessful calibration.
unable to calibrate - equipment
unable to calibrate - out of range
unable to calibrate - no
unable to calibrate - unstable
Setup <Press Label>
to recalculate the calibration factor using the applied pressure.
<Press Label> mercury calibr. done at <Date and Time>
Contact your service department. The pressure hardware is
Make sure that you have selected the value for
you are applying to the transducer, and repeat the calibration.
Make sure that the transducer is connected and try again.
Make sure there are no disturbances to the transducer, and
repeat the calibration.
field in the pressure's