Recently lowered exposure limits for a number of important toxic gases, including H2S, SO2 and NO2, have forced many instrument users to revisit where to set the alarms in their atmospheric monitors. The electrochemical and PID sensors used to measure toxic gases in portable instruments are accurate, dependable, and can last for years in normal operation; but as good as they are, they have limitations as well as capabilities. It’s critical to understand what these life safety devices are able to accurately detect, what they can’t detect, and where to set the alarms in order to ensure worker safety and conform with regulatory requirements.

Attendees will learn:
 

• What the toxic gas sensors in your gas detectors can (and can’t) actually detect
• Changes in the TLV® exposure limits for H2S, SO2, NO2; and what to do about it
• Where to set the alarms
• The most common mistakes people make when using their toxic gas detectors
• Choosing the best sensor technologies for specific monitoring applications
• Using PIDs for measurement of toxic VOC vapors

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