Philips M3921A, Service Manual

Page: 32 / 150

Hardware and Software Tests
20 Performance Verification
3. Power on the monitor and enter the NiBP test screen.
a. Use the wheel to select Set up menu (screwdriver icon on bottom
of screen.)
b. Select the Power up defaults menu.
c. Use the wheel to select password 2-1-5.
d. Select
Enter Diagnostic Mode = yes
.
e. Select NBP test.
4. Press the Heart Rate Tone VOLUME button to close valves.
5. Press NBP start/stop switch, hold until the monitor screen shows 250 mmHg.
6. Wait 15-20 seconds to allow the value to stabilize.
7. Note the value on the screen, start 1-minute timer.
8. After 1 minute note the value on the screen, if the difference is less than or equal
to 6 mmHg the test has passed.
9. Press and hold the Heart Rate Tone VOLUME button until the screen
shows the pressure has released and the value is 0 mmHg.
10. Turn the monitor off.
Note
If the test fails, ensure the integrity of the cuff and adapter tubing,
then test again. If the test fails again, verify the integrity of all the
pneumatic system tubing inside the monitor. If the test still does
not pass, see test map, page 8.
Each of the tests mentioned below must be performed to verify pneumatic
system functionality. These tests can be performed individually (in any order)
or sequentially. Prior to performing any of these tests, perform the following
setup procedure. If these tests are performed in sequence, this procedure
needs to be performed once prior to the first test.
1. Turn on the Bio-Tek simulator and press the MODE button to place the
simulator in test mode. The simulator screen indicates
Internal Cuff
and
Pressure Gauge
.
2. Connect the simulator tubing to the NiBP connector on the monitor.
3. Follow the procedure described in Chapter 4 to place the monitor in Diagnostic
Mode with the NiBP Test screen active.
Pressure Transducer
Accuracy
The pressure transducer accuracy test verifies the pressure accuracy of the
monitor’s pressure transducer.