Philips 862474 ユーザーズマニュアル

Performance Procedures

Testing the Monitor  

The Leakage Check consists of two parts:

•

Part 1 - Checking the tubing between the pump outlet and the 

CO

2 

module outlet.

•

Part 2 - Checking the tubing between the pump inlet and the FilterLine inlet.

Check the flowmeter’s user guide for details on how to make a correct flow reading.

1

Check the ambient and cell pressure shown in the status line on the screen. The 
cell pressure should be approximately 20 mmHg (2.7 kPa) lower than the 
ambient pressure.

2

Connect the flowmeter outlet to the FilterLine inlet using a flexible connecting 
tube.

3

Block  the  CO

2 

module outlet using your fingertip and observe the flowmeter 

display. The value on the flowmeter (X2) should decrease to between 0 and 4 ml/
minute. If the value is not within the tolerance limits, there is a leakage between 
the pump outlet and the CO

2 

module gas outlet. 

4

If a leakage is found in Step 3, open the CO

2 

module and check the tubing 

connections at the pump outlet and the module CO

2 

gas outlet. If the connections 

are good, then there is leakage in the module and the CO

2 

module must be 

exchanged.

1

Disconnect the flowmeter from the Part 1 setup and connect the flowmeter inlet 
to the CO

2 

module gas outlet.

2

Leave the FilterLine connected to the CO

2 

module inlet.

3

Block the inlet of the FilterLine using your fingertip and observe the flowmeter 
display. The value on the flowmeter (X3) should decrease to between 0 and 4 ml/
minute. If the value is within the tolerance limits, there are no leakages and the 
leakage check is completed. You can proceed to the “Pump Check”.

4

If the value is not within the tolerance limits, there is a leakage between the 
FilterLine inlet and the pump inlet.

5

Check the FilterLine connections and open the monitor to check the tubing 
connections at the pump inlet and the CO

2 

module gas inlet. If the connections 

are good, try replacing the FilterLine and repeating the leakage check. If the 
situation remains, there is a leakage in the tubing and the CO

2 

module must be 

exchanged.