Patient Monitor User Manual Monitoring IBP (Optional)
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CAUTION
1 Mercury calibration should be performed by the biomedical engineering department
either whenever a new transducer is used, or as frequently as dictated by your
Hospital Procedures Policy.
2 The purpose of the calibration is to ensure that the system gives you accurate
measurements.
3 Before starting a mercury calibration, a zero procedure must be performed.
4 If you need to perform this procedure yourself you will need the following equipment:
Standard sphygmomanometer, 3-way stopcock and Tubing (approximately 25 cm
long).
WARNING
It is forbidden to perform this procedure while patient is being monitored.
The Calibration Procedure: (See Figure 17-7)
1. Close the stopcock that was open to atmospheric pressure for the zero calibration.
2. Attach the tubing to the sphygmomanometer.
3. Ensure that connection that would lead to patient is off.
4. Connect the 3-way connector to the 3-way stopcock that is not connected to the patient
catheter.
5. Open the port of the 3-way stopcock to the sphygmomanometer.
6. Select the channel to be calibrated in the menu and select the pressure value to which the IBP
is to be adjusted.
7. Inflate to make the mercury bar rise to the setup pressure value.
8. Adjust repeatedly until the value in the menu is equal to the pressure value shown by the
mercury calibration.
9. Press the Start button, the device will begin calibrating.
10. Wait for the calibrated result. You should take corresponding measures based on the prompt
information.
11. After calibration, disassemble the blood pressure tubing and the attached 3-way valve.
The prompt information related to calibration, take CH1 for example.
“CH1 CAL SUCCESS!”
Indicate that CH1 works normally, you can use CH1 to monitor the patient.
“CH1 CAL FAIL!”
Make sure that pressure value shown by hydrargyrum pressure meter is change- less.
“CH1 SENSOR OFF, FAIL!”
Make sure that sensor is not off, then start the calibration.
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