Emerson Releases Fixed Point Gas Detector Cutting Down on False Alarms

On March 5, 2025, Emerson announced the release of its Rosemount 625IR Fixed Gas Detector, with the company citing a need for end users to be able to detect hydrocarbon gases quickly and reliably without false alarms (1). The detector is designed for all plant environments, utilizing advanced optical absorption detection technology.

The Rosemount 625IR model has specialized, solid-state dual infrared (IR) sources and dual IR receivers, the purpose of which are to provide continual cross-checking and make adjustments internally that hold the detector to its factory calibration (1). Emerson said advanced drift monitoring technology and health monitoring diagnostics allow the detector to be installed simply and maintain that factory standard for life—resulting in long-term reliability and minimal maintenance even in differing weather conditions and/or hazardous environments.

Accessories listed by Emerson in a press release include heaters on the optical surfaces of the detector and other protective measures that help to eliminate downtime, and mechanisms to perform function testing using either test gas or a gas-free test filter, plus ways to make the detector usable in extractive gas detection applications (1).

Emerson said duct-mounted versions are available in two lengths; these options allow for representative detection across ducts or voids that the company says is fast and accurate.

The Rosemount 625IR’s standard operating temperature range is -40 to +167 degrees Fahrenheit (-40 to +75 degrees Celsius), and it has been rated for hazardous areas throughout North America, South America, and Europe, according to Emerson (1). It has a five-year proof test interval, permitting end users to significantly reduce the frequency of scheduled maintenance visits.

Emerson, which is headquartered in St. Louis, Mo., announced in August 2022 the opening of a 62,000-sq.-ft. gas analysis solutions facility in Cumbernauld, Scotland (2). The site was designed to help companies reduce their environmental impact by providing more than 10 different sensing technologies to measure more than 60 different gas components. It was also designated with the responsibility of engineering and manufacturing the Rosemount line of gas analyzers and chromatographers.

In August 2023, Emerson said it would be collaborating with Sartorius to integrate that company’s Biostat STR Generation 3 family of bioreactors with Emerson’s DeltaV distributed control system (3). That partnership was forged with the aim of helping manufacturers build a connected plant not only through easily configurable and integrated equipment, but also increased access to advanced automation strategies and diagnostics.

Also in 2023, Pharmaceutical Technology® had the opportunity to sit down with Michalle Adkins, director of Life Sciences Consulting for Emerson, to discuss the structure of manufacturing organizations and how novel technologies may play a role in operations (4). The video of that interview can be accessed by clicking here.

References

1. Emerson. Emerson’s New Fixed Point Gas Detector Provides Fast and Reliable Detection without False Alarms. Press Release. March 5, 2025.
2. Emerson. Emerson Opens Gas Analysis Solutions Center to Help Plants Meet Sustainability Goals. Press Release. Aug. 29, 2022.
3. Emerson. Sartorius Bioreactors Integrate Emerson Technology to Speed New Therapies to Market. Press Release. Aug. 3, 2023.
4. Playter, G. Discussing Manufacturing Operations with Michalle Adkins (Emerson Automation Exchange). PharmTech.com, Apr. 12, 2023.