Rosemount/Rosemount Wireless Gas Monitor 928

Introduction: Rosemount/Rosemount Wireless Gas Monitor 928, the Rosemount 928 Wireless Gas Monitor detects hydrogen sulfide (H2S), carbon monoxide (CO), and oxygen depletion (O2), which were previously challenging and costly for monitors in remote applications. The wireless gas monitoring system improves worker safety through early gas leak detection and can be easily integrated with WirelessHART® technology without 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-free, hot-swappable smart sensor module.

Features:

The hot-swappable electrochemical sensor modules feature end-of-life diagnostics and can be installed in the field without tools.

Replaceable intrinsically safe lithium-thionyl chloride power module. The power modules have a service life of more than two years and can be easily replaced in the field in hazardous areas.

WirelessHART technology is secure and cost-effective, with >99% data reliability

Simple, intuitive installation provides a quick and easy way to enhance security monitoring and eliminate cabling costs

High-performance monitoring achieves an accuracy of ±3 ppm or 10% of reading, whichever is greater, compared to traditional wired gas monitors

Product parameters

Operating Temperature:

H2S: -40 °C to +50 °C (-40 °F to +122 °F)

O2 loss: -30 °C to +50 °C (-22 °F to +122 °F)

CO: -30 °C to +50 °C (-22 °F to +122 °F)

Update rate: 1 second to 60 minutes for users to choose

Time Constant/Response:

　　H2S：

T20 < 8 seconds

T50 < 10 seconds

T90 < 45 seconds

　　O2：

T90 < 15 seconds

Detection range:

H2S: Gas concentration level 0-100 ppm (range)

O2 depletion: gas concentration level 0-25% (volume ratio)

CO: Gas concentration level 0-1,000 ppm (range)

Power supply: Replaceable intrinsically safe lithium-thionyl chloride power modules with PBT polymer housings

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

Enclosure rating: IP66 rated (IP) filter

Housing material: low copper aluminum (A360) or stainless steel

Certifications: Intrinsically Safe, CSA 1 Classification and ATEX/IECEx Zone 0

Output: IEC 62591 WirelessHART 2.4GHz DSSS. Discrete outputs are available to support area alarms

Precision:

H2S: ± 3 ppm or 10 % reading, whichever is greater

O2 depletion: within 0.5 % of the oxygen content in the ± supplied air

CO: ± 6 ppm or 10 % reading, whichever is greater

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Rosemount/Rosemount Wireless Gas Monitor 928

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