GE Analytical Instruments ©2006
DLM 14291 Rev. A
5-1
5.
INSTALLATION AND SETUP: GAS-PHASE MEASUREMENTS
Installation of Gas Sampling Package
The gas sampling package is used for all gas-phase NO measurements. It includes a
Nafion drier, a white 0.45 µm Teflon filter, a 6 ft PVC sampling line with male Luer
adapters, a bacterial filter, a 6 ft PVC pressure line with white male Luer
adapters, a calibration tee, tubing clamp and a male Luer cap.
To install the gas sampling package:
•
Connect the 1/8" Swagelok nut on the Nafion drier (tubing with outer mesh) to
the frit restrictor on the sample inlet on the NOA's back panel. It is not
necessary to use a wrench to tighten the nut, finger-tight is acceptable.
•
Connect the white Teflon filter to the female Luer fitting on the Nafion drier.
•
Connect the NO sample line (clear PVC tubing without the white Luer fittings)
to the Teflon filter.
•
Connect the bacterial filter to the Luer bulkhead fitting labeled “Breath
Pressure” on the NOA back panel.
•
Connect the Pressure line (clear PVC tubing with white Luer adapters on ends)
to the bacterial filter.
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