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Preventative Maintenance Tests
Testing the Monitor
4-17
Pressure
Transducer
Accuracy Test
This test verifies the pressure accuracy of the monitor’s pressure transducer.
Pneumatic
Leakage Test
This test verifies the integrity of the pneumatic system.
Step Action
1 Confirm that the simulator displays "Leak Test" (see steps 1 and 2, in the
previous table).
2Press the Volume button to ensure that both valves are closed.
3 Perform an offset adjustment so that the simulator and monitor both display a
pressure of 0 mmHg or kPa by doing the following:
a. Press the Contrast button on the monitor’s front panel.
b. If needed, zero the simulator (see “To Zero the Simulator” on page 4-16).
4Press Start on the simulator.
5 Allow 15-20 seconds for the pressure to stabilize. The pressure displayed on the
monitor and on the simulator should be within 5 mmHg (0.7 kPa) of one another.
Document the difference between the simulator value and the monitor value
(X1).
6Press the Stop button on the simulator to stop the test.
7 Press and hold the Volume button until the monitor displays a pressure of 0
mmHg or kPa.
8 If no further NBP tests are to be conducted, turn the monitor Off. Normal
monitoring operation returns the next time the monitor is turned On.
Step Action
1 Turn the simulator on.
2 Perform the following sequence:
a. Press the Home button.
b. Press the Pressure Tests button.
c. Press the Pressure Leak Test button.
d. Press the Setup button.
e. Press 3, 0, 0, then Enter.
f. Set the Cuff to Internal.
3 Confirm that the simulator test screen is active and displays "Leak Test".
4Press the Volume button to ensure that both valves are closed.
5 Perform an offset adjustment so that the simulator and monitor both display a
pressure of 0 mmHg or kPa by doing the following:
a. Press the Contrast button on the monitor’s front panel.
b. If needed, zero the simulator (see “To Zero the Simulator” on page 4-16).
6Press the NBP button on the monitor’s front panel to activate the pump. Hold the
button until the monitor displays a pressure of approximately 250 mmHg
(33.3 kPa).
7 Allow 15-20 seconds for the pressure to stabilize. Record the pressure displayed
on the monitor (P1).