No image available
No image available
Your request is being processed.
  • Home
  • Rosemount™ 928 Wireless Gas Monitor
Rosemount-928 Wireless Gas Monitor

Rosemount™ 928 Wireless Gas Monitor

Configure
Request Quote
Learn About
ADD TO WORKSPACE

Product Description

Get continuous monitoring and reliable alerts for combustible or toxic gas leaks—without wiring, conduit, or complex installation work. The Rosemount™ 928 Wireless Gas Detector, 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.

Specifications

Operating Temperature
O2 Sensor Depletion: -22 °F to +122 0°F (-30 °C to +50 °C)
CO Sensor: -22 °F to +122 °F (-30 °C to +50 °C)
Combustible Gas Sensors: -40 to +140°F (-40°C to +60 °C)
Update Rate
1 second to 60 minutes, user selectable
Time Constant / Response
H2S Sensor:
  • T20 < 8 seconds
  • T50 < 10 seconds
  • T90 < 45 seconds
O2 Sensor:
  • T90 < 15 seconds
Combustible Sensor:
  • T90 < 25 seconds
Detection Range
H2S: Gas Concentration Level 0-100 ppm range
O2 Depletion: Gas Concentration Level 0-25 % by volume
CO: Gas Concentration Level 0-1,000 ppm range
Combustible Sensor: 0-100% LEL
Power Supply
Replaceable, intrinsically safe lithium-thionyl chloride power module with PBT polymer enclosure
Antenna Type
PBT/PC integrated omnidirectional antenna
Humidity Range
H2: 10-95 % Relative Humidity Non Condensing
O2: 10-95 % Relative Humidity Non Condensing
CO: 5-95 % Relative Humidity Non Condensing
Combustible Sensor: 0-95%, non-condensing
Enclosure Rating
IP66 ingress protection (IP) filter
Housing Material
Low-copper aluminum (A360) or stainless steel
Certifications/Approvals
Intrinsically Safe, CSA Division 1, and ATEX/IECEx Zone 0
Outputs
IEC 62591 WirelessHART 2.4GHz DSSS. Optional discrete output to support local alarms
Accuracy
H2S: ± 3 ppm or 10 % of reading, whichever is greater
O2 Depletion: ±Within 0.5 % of oxygen content of supply gas
CO: ± 6 ppm or 10 % of reading, whichever is greater
Combustible Sensor: ±3% LEL (Methane), ±5% LEL (Hydrogen)

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

Documents & Drawings