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Philips M3001A Service Manual Page 165

M3/m4 monitors,measurement server,measurement server extensions.
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This test checks the performance of the CO
CO
parts are replaced.
This test uses calibration equipment that can be ordered (see "Replacement Parts" for the part
number). The procedure is summarised in the following steps. Refer to the documentation
accompanying the equipment for detailed instructions.
Tools Required
• Standard tools, e.g. screwdriver, tweezers
• Electronic flowmeter, M1026-60144.
• Gas calibration equipment:
In addition you will need a local barometric pressure rating received from a reliable local
source (airport, regional weather station or hospital weather station) which is located at the
same altitude as the hospital.
The CO
• Barometric Pressure Check and Calibration, if required.
• Leakage Check
• Pump Check
• Flow Check and Calibration, if required.
• Noise Check
• CO
• CO
NOTE
All steps should be performed in the same session.
Barometric Pressure Check and Calibration
Check the barometric pressure value in the sidestream CO
Step 1
Step 2
Step 3
Testing the Instrument
performance test is required once per year and when the Instrument is repaired or when
2
Cal 1 gas 15210-64010 (5% CO
Cal 2 gas 15210-64020 (10% CO
Cal gas flow regulator M2267A
Cal tube 13907A
calibration for the sidestream Extension consists of the following steps:
2
Cal Check and Calibration, if required.
2
Cal Verification using 2nd cal gas
2
Go into Service Mode and select CO
Connect a FilterLine to the sidestream CO
sidestream CO
Extension.
2
Check the status line at the bottom of the screen. It will display "CO
reading (ambient/cell) xxx/yyy" where xxx is the ambient pressure and yyy is the
measured cell pressure. (The values are displayed with a resolution of 2 mmHg up
to 475 mmHg and a resolution of 1 mmHg from 475 mmHg to 825 mmHg.) 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.
measurement for the sidestream Extension. The
2
)
2
)
2
Extension as follows:
2
.
2
input. This activates the pump in the
2
Preventive Maintenance Tests
pressure
2
149

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