Preventative Maintenance Tests

Pneumatic

The following tests must be performed to verify pneumatic system functionality. Perform

System

these tests in the following order:

Functionality

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 If the simulator does not display a "0" before starting a test, use the following procedure to Simulator 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.

 

 

 

4-16Testing the Monitor

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Philips 862478, 862474 manual Pneumatic, System, Press the Pressure Leak Test button

862474, 862478 specifications

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