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Barometric Pressure Check And Calibration; Leakage Check - Philips IntelliVue MP70 Service Manual

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Tests

• Leakage check

• Pump check
• Flow check and calibration, if required.
• Noise check
• CO
Cal check and calibration, if required.
2
• CO
Cal verification using 2nd cal gas
2
Perform all checks in the same session.

Barometric Pressure Check and Calibration

Check the barometric pressure value in the sidestream CO
1
Go into service mode and select Setup CO
2
Connect a FilterLine to the sidestream CO
Extension.
The status line at the bottom of the screen displays "CO2 pressure reading (ambient/cell) xxx/yyy"
3
where xxx is the ambient pressure and yyy is the measured cell pressure. Check whether the
ambient pressure value (x1) matches (within the acceptable tolerance of ±12mm Hg) the reference
value you have received. If so, proceed to the leakage check. If the value is not correct, calibrate as
follows.
a. Select CO
b. Select the value in the table which matches the reference value received from a reliable local
source (airport, regional weather station or hospital weather station). (The values are displayed
with a resolution of 2 mmHg up to 500 mmHg and a resolution of 1 mmHg from 500 mmHg
to 825 mmHg.) Note: the selected value must be within ±10% of the current measured ambient
pressure, otherwise an error message will occur at restarting the monitor.
c. Confirm the barometric pressure setting.
d. Check that the ambient pressure displayed in the status line at the bottom of the screen is the
same as the value which you selected from the list in step b.
Leakage Check
The leakage check consists of checking the tubing between:
• the pump outlet and the measurement server extension outlet and
• the pump inlet and FilterLine inlet.
Check the user's guide of the flowmeter for details on how to make a correct flow reading.
Part 1
Go into service mode and select Setup CO
1
Connect a FilterLine to the sidestream CO
2
Check the ambient pressure and the cell pressure shown in the monitor's status line. The cell
3
pressure should be approximately 20 mmHg lower than ambient pressure.
4
Connect the flowmeter outlet to the FilterLine inlet using a flexible connecting tube.
then select Barom.Press to activate a table of values.
2
3 Testing and Maintenance
extension as follows:
2
menu.
2
input. This activates the pump in the sidestream CO
2
menu.
2
input to start the pump running.
2
2
39

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Intellivue mp60

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