Hydrogen Sulfide Gas Detection in Less Than Five Seconds

The Det-Tronics NTMOS hydrogen sulfide (H₂S) detector can detect H₂S in less than five seconds – six times faster than the ISA standard. In addition, the detector operates well in harsh environments that include extreme temperature and humidity. The detector’s speed of response is essential because high concentrations of H₂S can cause instant death, while relatively short-term exposure to 500-1000ppm can be life-threatening and cause serious harm.

"Our ultra-fast H₂S gas detector uses nanotechnology (NT) in a Metal Oxide Semiconductor (MOS) sensor to help reduce the occurrences of hydrogen-sulfide injuries and deaths," said Cliff Anderson, Marketing Director at Det-Tronics. “Our detector alerts people to the presence of hydrogen sulfide in less than half the time of other detectors. And the onboard humidity and temperature sensors ensure accurate and repeatable readings."

Third-party tested to ISA-92.0.01, the Det-Tronics NTMOS H₂S gas detector senses hydrogen sulfide in conditions that might damage standard electrochemical and standard MOS sensors. The Det-Tronics NTMOS detector is packaged in a rugged housing, protected by a sintered stainless steel flame arrestor, and can be installed in Class I, Division 1 locations. The NTMOS gas detector can be installed as a stand-alone detector or combined with a display for local indication.

Det-Tronics’ FlexVu® Universal Display is an effective display to pair with the NTMOS detector. The FlexVu display provides non-intrusive calibration, local event logging, and third-party performance certifications. This display/communicator reduces spare-parts inventory by working with a wide spectrum of toxic and combustible gas sensors and by operating with industrial communication protocols such as HART and Modbus.

Because the FlexVu Universal Display provides non-intrusive magnetic calibration and configuration, a single person working alone can calibrate gas detectors without declassifying a hazardous area. In addition, the FlexVu display has been third-party performance tested and certified to FM, CSA, and ATEX/IEC. Its reliable construction has an explosion-proof rating and is approved for use in Class I, Division 1, Groups A, B, C, and D classified hazardous areas for all gas types.

"The FlexVu intuitive menu structure simplifies operation by enabling quick device set up and easy access to sensor status information including local alarm and event logs," said Mike Bragg, Product Marketing Manager at Det-Tronics. “Plus users will like the backlit, heated LCD that clearly displays gas concentration, and alarm and fault status."