2: Maintenance NBP Module Calibration
20
NBP Safety Features
The NBP module is equipped with the Timeout and Overpressure safety features that prevent injury to
the patient and damage to the device.
NBP Time-Out
The NBP module times out when the pressure remains greater than 10 mmHg for 3 minutes. Do not
keep the cuff pressurized for more than 3 minutes during the calibration.
NBP Overpressure
The NBP module overpressure occurs when the cuff pressure reaches 300 mmHg. Do not raise the
pressure in the cuff to more than 280 mmHg during the calibration.
The safety features cause the valve to open and the pressure to drop.
To reset the module if a safety feature is triggered during calibration:
Press the Reset NBP Modulesoft key.
NOTE: The reset takes approximately 5 seconds.
NBP Calibration Procedure
Complete the calibration within three minutes to avoid the NBP module timeout.
To calibrate NBP:
1 Press the Calibrate soft key.
The message Apply 0 mmHg. Select "Next" when ready is displayed (see Figure 17).
2 Release all of the pressure in the cuff so that the manometer reads 0 mmHg.
3 Press the Next soft key.
The message Apply 250 mmHg. Select "Next" when ready is displayed.
Figure 16 NBP Calibration Setup
Container
Loosely fitted
NBP cuff
Manometer
Pump
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