New Wireless CO & O2 Depletion Gas Sensors Enhance Plant Safety

Emerson has introduced two new sensors to its Rosemount 928 Wireless Gas Monitor platform. The Rosemount 628 Universal Gas Sensor series now includes sensors to monitor for the presence of carbon monoxide and for the depletion of oxygen. These additions allow safety managers and other process plant personnel to oversee a wider range of hazardous environments.

Produced by a multitude of combustion processes, carbon monoxide is immediately dangerous to life and health (IDLH) at concentrations above 1,500 ppm. Likewise, many industrial processes consume oxygen, depleting atmospheric oxygen supply in localized areas. Any situation where the oxygen content drops below 19.5% is IDLH. In many cases, carbon monoxide production and oxygen depletion can occur simultaneously, presenting compounding hazards.

The first Rosemount 628 Universal Gas Sensor was designed to detect hydrogen sulfide (H2S) due to its pervasiveness in process industries. Like the H2S sensor, the new CO and O2 depletion gas sensors are also smart, tool-less, and hot-swappable, allowing for seamless integration into the Rosemount 928 Wireless Gas Monitor.

The Rosemount 928 Wireless Gas Monitor is a highly versatile platform for monitoring high-risk locations in manufacturing plants, pipeline stations, and remote wellheads, among a variety of other process facilities. Easily deployed using a WirelessHART® network, this gas monitor can be deployed in areas considered too expensive or unsuitable for installation of traditional wired equipment.

With the expansion of the Rosemount wireless toxic gas sensor portfolio, companies can simply and cost-effectively increase gas safety across even their most remote sites.

For more information, please visit

Josh Hernandez | Marketing Engineer | Emerson Process Management | Rosemount Pressure

8200 Market Blvd | Chanhassen | MN | 55317

T +1 952-949-5427 |

1 Reply

  • Good to see so many solutions coming out making plants safer places to work. Here are a few examples:

    * Virtual Reality (VR) for learning
    * Digital sensors using existing fieldbus or wireless to keep up with inspection and testing, incl. condition monitoring of safety critical equipment, detect incidents, and operator situational awareness (Many of which are non-intrusive):
    -Loss of containment (corrosion and erosion)
    -Manual valve position
    -Overfill prevention
    -Hydrocarbon discharge to water
    -Ignition sources (temperature)
    -Fire water and CO2 pressure
    -Switchgear used for fire water pumps
    * Digital notebook to report incidents, hazards, near-misses, and faults
    * Digital mustering headcount, rescue locating, and distress calls (RTLS)

    Learn what other plants are doing from this essay: