Philips M3921A Service Manual page 36

Hardware and Software Tests
Deflation Rate
24
pressure of 0 mmHg by doing the following:
Press the CONTRAST button
a.
Press the ZERO button on the simulator.
b.
6. Press the NiBP button
7. Hold the NiBP button
approximately 250 mmHg.
Press the SELECT button on the simulator until the simulator displays
8.
Overpressure Test
9. Press the START TEST button on the simulator. The simulator pressurizes the
system until the monitor's overpressure relief system activates, including the
warning display screen. The simulator displays the pressure value that caused
the monitor's overpressure relief system to activate. The test is successfully
completed if the simulator displays a pressure reading of 280 mmHg to 330
mmHg.
10. Press and hold the Heart Rate Tone VOLUME button
monitor displays a pressure of 0 mmHg.
Additional NiBP tests can be performed at this time. If no further NiBP tests
are to be conducted, turn the monitor off. Normal monitoring operation
returns the next time the monitor is turned on.
The deflation rate test verifies the deflation rate of the A3 monitor. (There is
no deflation rate test for the A1).
1. Ensure that the Bio-Tek simulator is in test mode. The simulator should display
Pressure Gauge
2. Confirm that the simulator is set up for the internal cuff.
3. Ensure that the NiBP Test screen is active on the monitor.
4. Press the Heart Rate Tone VOLUME button
that both the valves are closed.
5. Perform an offset adjustment so that the simulator and monitor both display a
pressure of 0 mmHg by doing the following:
a. Press the CONTRAST button
b. Press the ZERO button on the simulator.
6. Press the NiBP button
on the monitor.
on the monitor to activate the pump.
until the monitor displays a pressure of
.
.
on the monitor.
on the monitor to activate the pump.
to ensure that the
on the monitor. This verifies
Performance Verification