Emerson Rosemount 628 Universal Gas Sensor
Emerson Rosemount 628 electrochemical toxic gas sensors now measure carbon monoxide (CO) and oxygen depletion (O2) in addition to hydrogen sulfide (H2S).
The Rosemount 628 Universal Gas Sensor was originally designed to detect hydrogen sulfide in the process industries. The incorporation of this broader range of measureable hazards allows for wider applications of the sensors, which are compatible with the Rosemount 928 Wireless Gas Monitor. The 928 Rosemount gas monitor can be deployed — using a WirelessHART network — in areas deemed too impractical or expensive for conventional wired infrastructure.
The 628 sensor series is designed to monitor hazardous situations in challenging and remote locations such as process plants, remote wellheads, pipelines and storage terminals. Carbon monoxide can be released in a number of combustion processes, with concentrations above 1500 ppm constituting immediate danger to life and health. Additionally, processes with the potential to consume oxygen can reduce atmospheric content in affected areas, with situations where oxygen is below 19.5% also being life-threatening. Such a hazard can also be compounded by more than one condition.
The 928 monitor has hot-swappable main components, including the power module and the 628 toxic gas sensor. Both are intrinsically safe and designed to be replaced in the field in minutes without the need for tools. Further, the sensor’s calibration information is stored within the sensor, not the transmitter, which allows for sensor calibration in a non-hazardous location followed by exchange with already installed 628 sensors.
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