October 9, 2012

Three-Step Gas/Vapor Safety Method

Safety is the most critical factor in any industrial plant. In the process industries, a number of technologies are used to detect flammable and toxic gases and vapors. The problem in many plants, however, is that the range of detection technologies commonly deployed is difficult to manage, and may not provide the comprehensive detection system needed.

To establish an effective gas/vapor detection system, three technology deployments are recommended: point detectors, ultrasonic gas leak detection, and flame detectors. The reason these three technologies are recommended is because they cover three critical detection defense levels: the immediate leak stage, the gas cloud formation or accumulation stage, and the ignition stage.

Point detectors are used to monitor a specific area for toxic or flammable gas. A key factor in the effective use of point detectors is that they must be carefully placed and calibrated for the type of gas to be detected. One example of a critical use point detector is Net Safety's Millennium Series Airborne Particle Monitor (APM) and Oil Mist Detector. This APM detector is an explosion-proof, infrared detector designed to monitor ambient air for particulate matter such as smoke, oil mist, carbon, dust or ash. This product is the only detector of its kind that is certified explosion proof Class 1, Div 1.

Using sensors to monitor areas for the ultrasound generated by the release of pressurized gas, ultrasonic gas leak detection technologies can be used to monitor even well-ventilated outdoor environments. These sensors are also recognized for their ability to withstand extreme conditions and lack of calibration requirements.

Flame detectors employ ultraviolet (UV) and infrared (IR) spectroscopy to detect the ignition source, as well as the hydrocarbons that fuel the flames. Because flame detectors sense UV and IR energy at specific wavelengths, it is important when selecting a flame detector to consider the type of hazard to be detected, the environment in which it will be placed, the detector’s response time, and self-diagnostics.

To learn more about this three-step approach to safety, visit Booth 2100 Safety Monitoring in the Rosemount Analytical Measure and Analyze area of the exhibit hall.