Patient monitor User’s manual
Chapter 12-5
12.7 Zeroing the Pressure 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).
——when you use a new transducer or tubing；
——every time you reconnect the transducer cable to the monitor；
——if you think the monitor’s pressure readings are not correct；
——when the monitor is restarted.
Procedure of the IBP Transducer Zero:
1. Turn off patient stopcock (3-way stopcock 2) before you start zeroing.
2. The transducer must be vented to atmospheric pressure before zeroing.
3. The transducer should be placed at the same level with the patient heart,
approximately mid-axially line.
4. Select 【 Zero 】 smartkey, and select the IBP label to be zeroed from the
options. Select【Zero】in the IBP parameter setting menu to start zeroing.
5. Wait 3s for the zeroing procedure end and the pressure value that is
displayed on screen will approximately return to zero.
6. After completing zero, close the stopcock to atmospheric pressure, and open
the stopcock to the patient.
Caution: During zeroing, the 3-way stopcock near artery needle shall
be closed and avoid connecting the artery needle to patient.
Ensure that the tubing is free of air.
12.8 Pressure Calibration
The purpose of the calibration is to ensure that the system gives you
accurate measurements. Calibration should be performed whenever a new
transducer is used or as frequently as dictated by your Hospital Procedures
Policy.
IBP pressure calibration should be done by the professional service
personnel who you should contact if you need to maintain IBP. More details
about the IBP pressure calibration, Please refer to Service Manual.
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