Teledyne 501 TRS, Руководство по эксплуатации, Страница: 61 / 111

Teledyne API - T102/501 TRS, Addendum to T101 Operation Manual THEORY OF OPERATION
59
10.3.
Pneumatic Operation
10.3.1.
Sample gas Flow
See Figures 3-4. 4-1 and 4-2 for depictions of the internal pneumatic flow of both the
T102 & the M501-TRS.
10.3.2.
M501 SO
2
Scrubber
In order to ensure that no ambient SO
2
interferes with the analyzer’s TRS measurement
the sample gas stream is passed through a chemical scrubber that removes SO
2
from the
sample stream before it is passed though the M501-TRS converter oven.
The SO
2
scrubber is a Teflon encased, stand-alone unit containing a room-temperature
catalyst tube mounted in the right side of the converter case (see Figure 3.2).
The SO
2
scrubber material is consumed as it removes SO
2
. If the expected
concentrations of SO
2
are very high, the lifetime of the scrubber will be short. The
expected life of the scrubber is approximately 1000 ppm-hours. See Section 8.1.1.3 for
information on when and how to replace the SO
2
scrubber material)
07267B DCN6485