Mindray BeneView T1, Operator'S Manual

Page: 143 / 286

14-3
14.3.2 Zeroing the Transducer
To avoid inaccurate pressure readings, the monitor requires a valid zero. Zero the transducer in accordance with your
hospital policy (at least once per day). Zero whenever:
A new transducer or adapter cable is used.
You reconnect the transducer cable to the monitor.
The monitor restarts.
You doubt the readings.
1
. Turn off the stopcock to the patient.
2. Vent the transducer to the atmospheric pressure by turning on the stopcock to the air.
3. In the setup menu for the pressure (e.g. Art), select [ Art Zero >> ]
→
[ Zero ]. During zero calibration, the [ Zero ]
button appears dimmed. It recovers after the zero calibration is completed.
4. After the zero calibration is completed, close the stopcock to the air and open the stopcock to the patient.
Zero calibration may fail in case of pressure fluctuation or pressure exceeding the calibration range. If zero calibration
fails, follow this procedure:
1. Check that the three-way valve (the one near the transducer) is open to the air.
2. Perform zero calibration again. Do not sway the IBP transducer and tubing during zero calibration.
NOTE
Your hospital policy may recommend that the ICP transducer is zeroed less frequently than other
transducers.
3-way stopcock
Pressure transducer
Pressure adapter cable
Monitor