SA Series Ambulatory Blood Pressure Monitor User Manual Cleaning, Care and Maintenance
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and the monitor cases for cracks, fraying, or kinks. Do not use the monitor or cuff if there are any
signs of damage. Please contact our service department if any damage or defects are identified.
11.5.2 Calibration
The accuracy of the ABPM should be checked at least once every year. If needed, an authorized
service center may recalibrate the pressure transducers in the monitor. To check accuracy, the SA
series ABPM must first be placed into the proper mode. Follow the steps below:
1. Retrieve data from the monitor so as to exit the monitoring program.
2. Power off and then on the monitor.
3. You see the 24-hour time displayed and no “Auto”, press and hold the Start/Stop button for 3
seconds. You will now see “0 mmHg”.
The monitor’s accuracy can now be checked against a calibrated mercury column.
1. Place a t-tube between the hoses connecting the monitor and the cuff.
2. Wrap the cuff around a suitably sized can or bottle. This acts as the reservoir for the unit.
3. Attach the third end of the “T” tube into a calibrated mercury column, which gives you access
to the bulb and a reference.
4. Using the bulb of the calibrated mercury column, inflate the cuff to 250 mmHg.
5. Once the pressure has stabilized at this level, the monitor should match the mercury column
by ±3 mmHg.
6. Check the unit against the column every 100 mmHg from 250 to 50 mmHg. The monitor
should be within ±3 mmHg. If it is not, the monitor needs to be returned to the service
department for recalibration or repair.
NOTE: To return the SA series ABPM to its normal operating mode, power off and on the
monitor.
11.5.3 Maintenance
WARNING
1. Failure on the part of the responsible individual hospital or institution employing this
equipment to implement a satisfactory maintenance schedule may cause undue
equipment failures and possible health hazards.
2. Any serious incident that has occurred in relation to the device should be reported to
the manufacturer and the competent authority of the Member State in which the user
and/or patient is established.
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