Enclosure Purge (Optional) - Endress+Hauser SpectraSensors J22 TDLAS Operating Instructions Manual

J22 TDLAS Gas Analyzer
SpectraSensors, Inc.
 2: Remove filter and gasket
1 Filter element
2 Gasket
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
1 Gasket
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
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:
1. Allow the sample gas to continue flowing through the system.
2
.
S
.
2
Ensure an appropriate sensor is used based on the toxic
components in the process gas stream.
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1
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