12 Monitoring Invasive Pressure
When using high frequency ventilation, ensure that the tubing from the ventilator does not touch the
arterial line, or connect with it indirectly, while zeroing the pressure. This could cause small pressure
variations which can interfere with the zero procedure.
Using the Zero Hardkey
Pressing the Zero hardkey for two seconds on the M1006B Pressure module starts a zero for the
pressure currently measured with the module.
Pressing the Zero hardkey for two seconds on the M3001A Multi-Measurement module zeros the
pressure being measured by the Multi-Measurement module and the pressures from any connected
Zeroing All Pressures Simultaneously
Before zeroing all pressures, make sure that all pressure transducers are vented to atmospheric
If you are measuring pressures with more than one measuring device, using the
to initiate the zeroing calls up a list of all active pressures. Select the pressure you want to zero or select
Troubleshooting the Zero
The status line lists the probable cause of an unsuccessful zero:
unable to zero - equipment
unable to zero - excessive
unable to zero - unstable
unable to zero - no
unable to zero - pulsatile
unable to zero - timed out
Switch on first
to zero all pressures simultaneously.
The hardware is faulty. Contact your service personnel.
Make sure the transducer is vented to air and try again. If this fails,
the hardware may be faulty. Replace the adapter cable and try again.
If it fails, replace the transducer and try again. If it still fails, contact
your service personnel.
Make sure that the transducer is connected and try again. If this fails,
exchange the adapter cable and try again. If this fails, exchange the
Make sure that the transducer is vented to air, not to the patient, and
Try pressing the Zero hardkey or
this fails, replace the transducer and adapter cable and contact your
Pressure measurement is switched off. To switch it on, in the
Zero <Press Label>
menu, select the pressure's label.
key again. If