J22 TDLAS Gas Analyzer 4900002277
SpectraSensors, Inc. 133
2: Remove filter and gasket
1 Filter element
2Gasket
5. Clean the filter with isopropyl alcohol if replacing the old filter element.
6. Press the open end of the filter element into the body.
7. Center the gasket on the bonnet seal surface.
3: Centering gasket on bonnet seal surface
1Gasket
2 Bonnet seal surface
8. Thread the bonnet onto the body until the body threads are no longer visible.
If the bonnet does not fully thread onto the body, the gasket is not centered on
the bonnet seal surface
.
9. Stabilize the body with a wrench and tighten the bonnet to 550 in. lb
(62.2 Nm).
10. Test for proper operation.
Enclosure purge (optional)
The optional enclosure purge is typically elected when the sample gas contains
high concentrations of H
2
S.
When maintenance of the J22 TDLAS Gas Analyzer is required, follow one of the
two methods described below prior to opening the enclosure door.
With a gas sensor:
Ensure an appropriate sensor is used based on the toxic
components in the process gas stream.
1. Allow the sample gas to continue flowing through the system.
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