Philips 862478 - Manual (Page 66)

Preventative Maintenance Tests
4-16 Testing the Monitor
Pneumatic
System
Functionality
The following tests must be performed to verify pneumatic system functionality. Perform
these tests in the following order:
1. Pressure Transducer Accuracy
2. Pneumatic Leakage
3. Inflation Rate
4. Over-Pressure
5. Deflation Rate
Note
The pneumatic system includes an over-pressure safety limit function and a safety period
time-out function. These safety functions may interfere with NBP tests described in this
section. In order to avoid activating these safety functions, do not pressurize the system
above 270 mmHg (36 kPa) and do not pressurize the system for time periods that exceed 150
seconds.
To Zero the
Simulator
If the simulator does not display a "0" before starting a test, use the following procedure to
zero the simulator:
1. Disconnect the hose from the simulator.
2. Press Home.
3. Press SETUP.
4. Press MORE.
5. Press MORE again
6. Press ZERO PRESSURE.
7. Press ZERO.
8. Press Home to return to main menu.
9. Reconnect the hose.
Before beginning the above test sequence, perform the following three steps:
Step Action
1 Turn the NBP 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 2, 5, 0, then Enter.
f. Set the Cuff to Internal.
3 Connect the simulator tubing to the NBP patient monitoring input connector.
4 Place the monitor in Diagnostic Mode with the NBP test screen active.