Installation and Start Up
| 3-13
Installing the Demister
The demister is a white insulated assembly (Figure 3-3). The sample goes
through the demister at a lower temperature than the rest of the oven. If
there are droplets of sulfur in the sample stream, they will condense and
fall away from the sample.
There is an RTD at the top left of the demister which measures the tem-
perature. Having the RTD on the side of the demister makes it easier to re-
move the demister when servicing or replacing since the RTD can retract.
Take necessary precautions to ensure that neither the analyzer sample
inlet ball valve (FV1) nor the sample return valve (FV2) is inadver-
tently opened during the demister installation procedure.
Figure 3-3. Internal Layout.
1. Refer to Figure 3-2. Place the demister on top of the sample inlet ball
valve (FV1). Make sure that the 1/8” tube fitting is facing the electron-
ics enclosure.
2. Locate the 1/8” demister RTD from the electronics enclosure and insert
it into the 1/8” fitting towards the top of the demister.
3. Push the demister onto the probe as far as necessary until it meets
with the ¾” compression fitting connecting the demister to the sample
inlet ball valve. It may be necessary to slightly loosen the compression
!
WARNING
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