Philips HeartStart XL+ - Page 31

NBP Module Calibration 2: Maintenance
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4 Increase the pressure so that the manometer reads 250 mmHg.
Regardless of your configuration settings, millimeters of mercury are the unit of measure for pressure
in the HeartStart XL+ calibration. If your manometer measures pressure in different units, then use
the conversion formulae in Table 3:
Take time to allow the pressure in the unit to equalize and stabilize. One way to do this is to
pressurize the cuff up to about 260 mmHg and wait for 30 seconds, then gently adjust the pressure
with the pump and valve.
5 When the pressure is stable at 250 mmHg, press the Next soft key again.
6 Wait until the message NBP Calibration complete
is displayed.
7 After several seconds, the message clears, and the NBP Service screen is displayed. Release the
pressure in the cuff to avoid the safety timeout.
8 Run an operational check to update the calibration status. See “Operational Check” on page 33.
Figure 17 NBP Calibration Screen
Table 3 Units of Pressure Conversion
1 kPa = 7.5 mmHg 250 mmHg = 33.3 kPa
1 mb = .75 mmHg
250 mmHg = 333 mb
1 psi = 51.7 mmHg
250 mmHg = 4.83 psi
1 atm. = 760 mmHg
250 mmHg = .329 atm.
1 inHg = 25.4 mmHg
250 mmHg = 9.84 inHg
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