Welch Allyn 53000 Service Manual page 23

Service manual
2. Turn on the monitor.
3. Set the monitor to ADULT mode.
a. Press
b. Press
4. Set the inflation target pressure to 270 mmHg (36 kPa).
a. Press
b. Press
5. Press
The pressure reaches approximately 270 mmHg (36 kPa), the pump shuts off, and the
pressure begins stepping down.
6. Carefully squeeze the pump bulb to raise the pressure to 280 mmHg (37.3 kPa).
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•
7. Set the monitor to PEDIATRIC mode.
8. Set the inflation target pressure to 170 mmHg (22.7 kPa).
9. Raise the pressure to 200 mmHg (26.7 kPa).
a. Press
b. Carefully squeeze the pump bulb to raise the pressure to 200 mmHg (26.7 kPa).
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•
10. Replace the adult cuff with a #1 neonate cuff, and wrap the neonate cuff securely
around a solid cylindrical object with circumference between 1.6 and 1.9 inches (4.1
and 4.8 cm).
11. Set the monitor to NEONATE mode.
12. Set the inflation target pressure to 132 mmHg (17.6 kPa).
13. Raise the pressure to 141 mmHg.
a. Press
b. Carefully squeeze the pump bulb to raise the pressure to 141 mmHg (18.8 kPa).
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•
To verify overpressure cutoff for NIBP versions 4.20.00 and later
This test demonstrates that the overpressure cutoff feature prevents pressure from rising
fast enough to exceed the cutoff pressure (295 to 330 mmHg, or 39.3 to 44.0 kPa) before
the pump stops and the dump valve and the bleed valve open.
once.
repeatedly until ADULT appears.
repeatedly until TARGET PRESSURE appears in the display window.
repeatedly as needed to set the target pressure (displayed in the SYS
window) to 270 mmHg (36 kPa).
to start the pump.
The dump valve opens and quickly drops the pressure to approximately 0.
The monitor displays C10 to indicate that an overpressure event has occurred.
and wait for the pressure to reach 170 mmHg (22.7 kPa). The pump
shuts off and the pressure reading starts stepping down.
The dump valve opens and quickly drops the pressure to approximately 0.
The monitor displays C10 to indicate that an overpressure event has occurred.
and wait for the pressure to reach 132 mmHg (17.6 kPa). The pump
shuts off and the pressure reading starts stepping down.
The dump valve opens and quickly drops the pressure to approximately 0.
The monitor displays C10 to indicate that an overpressure event has occurred.
Functional verification 19