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Rosemount™ 928 Wireless Gas Monitor
Get continuous monitoring and reliable alerts for combustible or toxic gas leaks—without wiring, conduit, or complex installation work.
The Rosemount™ 928 Wireless Gas Monitor, powered by proven WirelessHART® technology, reduces total installed cost and deployment time while extending gas detection to remote, hard-to-reach, or hazardous areas. Say goodbye to broken wires and ongoing maintenance with a hot-swappable, tool-free sensor module that enables in-field replacement in minutes—keeping your people protected and your operations running without interruption.

Rosemount™ 928 Wireless Gas Monitor

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Rosemount™ 928 Wireless Gas Monitor for combustible and toxic gas

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Rosemount™ 928 Wireless Gas Monitor

Specs

Accuracy
Toxic Gas H2S Sensor: ± 3 ppm or 10 % of reading, whichever is greater
Antenna Type
PBT/PC integrated omnidirectional antenna
Certifications/Approvals
Intrinsically Safe, CSA Division 1, and ATEX/IECEx Zone 0
Detection Range
H2S Sensor: Gas Concentration Level 0-100 ppm range
Enclosure Rating
IP66 ingress protection (IP) filter
Housing Material
Low-copper aluminum (A360) or stainless steel
Humidity Range
H2 Sensor: 10-95 % Relative Humidity Non Condensing
Operating Temperature
O2 Sensor Depletion: -22 °F to +122 °F (-30 °C to +50 °C)
Outputs
IEC 62591 WirelessHART 2.4GHz DSSS. Optional discrete output to support local alarms
Power Supply
Replaceable, intrinsically safe lithium-thionyl chloride power module with PBT polymer enclosure
Time Constant / Response
H2S Sensor:
Update Rate
1 second to 60 minutes, user selectable

Features

  • Hot-swappable electrochemical sensor module with end-of-life diagnostics can be installed in the field without tools
  • Replaceable, intrinsically safe lithium-thionyl chloride power module has over two years of service life and can be easily exchanged in hazardous field locations
  • WirelessHART® technology is secure, cost-effective and delivers >99% data reliability
  • Easy, intuitive installation enables a quick method to add gas leak safety monitoring without the cost of wiring
  • High performance gas leak monitoring comparable to conventional wired gas leak monitors with an accuracy of ±3 ppm or 10% of reading, whichever is greater
  • Now Measures Combustible Gas
      Detects hydrocarbons and hydrogen
    • True LEL automatically adjusts calibration to the gas type detected for best accuracy
    • Driftless measurement eliminates annual calibrations
    • >10 year sensor life