Teledyne T101, Operation Manual, Page: 60 / 375

Getting Started Teledyne ML – T101 Operation Manual
56
3.6.2. INTERFERENCES FOR H
2
S MEASUREMENTS
It should be noted that the fluorescence method for detecting H
2
S is subject to
interference from a number of sources. Since the T101 converts H
2
S into SO
2
and
measures the UV fluorescence of the SO
2
, the most common source of interference is
from other gases that fluoresce in a similar fashion to SO
2
, when exposed to UV Light
such poly-nuclear aromatics (PNA), of which certain hydrocarbons such as meta-xylene
and naphthalene are the most pervasive. The T101 has been successfully tested for its
ability to reject interference from most of these sources.
For a more detailed discussion of this topic, see Section 10.2.6.
NOTE
Once you have completed the above set-up procedures, please fill out the quality questionnaire that was
shipped with your unit and return it to Teledyne ML. This information is vital to our efforts in continuously
improving our service and our products. Thank you.
.