GE MOA 280i, Руководство по эксплуатации и обслуживанию

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GE Analytical Instruments ©2006
7-11
DML 14291 Rev. A
•
Place the inhalation diaphragm in the valve body and screw the inhalation tube
onto the valve body.
•
Place the exhalation diaphragm in the modified exhalation port and connect it
to the valve body.
•
Reconnect the restrictor to the Luer adapter on the exhalation tube.
•
Screw the modified mouth tube into the valve body and reconnect the
mouthpiece.
The PVC tubing used for the sample and pressure lines can be cleaned as described
above. The green bacterial filter on the pressure inlet of the NOA cannot be
cleaned and should be replaced when visibly wet or when the valve and tubing are
cleaned.
Checking the Inspiratory Gas Filter
The lifetime of the inspiratory filter will depend on the levels of NO in ambient air
and the frequency of use. The performance of the filter to remove NO should be
tested periodically to determine when it is no longer removing NO. The NOA must
be in the Start Mode and should be calibrated before performing this test. To test
the filter:
•
With the filter installed on the Accurate NO breath kit, connect the NO
sampling and pressure lines from the NOA to the breath kit.
•
Cover the mouthpiece of the breath kit with the palm of the hand to
prevent room air for entering the breath kit (a tight seal is required).
•
Note the [NO] on the NOA’s front panel. If the filter is operating properly,
the [NO] should be < 5 ppb.
If the [NO] is > 5 ppb, replace the inspiratory filter.