Rosemount™ 928 Wireless Gas Monitor

The Rosemount 928 Wireless Gas Monitor detects hydrogen sulfide (H2S), carbon monoxide (CO), and oxygen depletion (O2) in remote applications previously too challenging and costly to monitor. This wireless toxic gas monitoring system enhances worker safety through early gas leak detection, simply integrates withWirelessHART® technology, and eliminates the need for expensive wiring. The Rosemount 928 Wireless Gas Monitor easily connects to the Rosemount 628 Universal Gas Sensor which consists of a tool-less-hot-swappable smart sensor module. Operating Temperature: H2S: -40 °F to +122 °F (-40 °C to +50 °C)O2Depletion: -22 °F to +122 °F (-30 °C to +50 °C)CO: -22 °F to +122 °F (-30 °C to +50 °C) Update Rate: 1 second to 60 minutes, user selectable Time Constant / Response: H2S:T20 < 8 secondsT50 < 10 secondsT90 < 45 secondsO2:T90 < 15 seconds Detection Range: H2S: Gas Concentration Level 0-100 ppm rangeO2Depletion: Gas Concentration Level 0-25 % by volumeCO: Gas Concentration Level 0-1,000 ppm range 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 CondensingO2: 10-95 % Relative Humidity Non CondensingCO: 5-95 % Relative Humidity 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 62591WirelessHART 2.4GHz DSSS. Optional discrete output to support local alarms Accuracy: H2S: ± 3 ppm or 10 % of reading, whichever is greaterO2Depletion: ±Within 0.5 % of oxygen content of supply gasCO: ± 6 ppm or 10 % of reading, whichever is greater