Skip to main content

Servomex’s high-temperature oxygen transmitter achieves SIL 2 compliance

Published by , Editor
Hydrocarbon Engineering,

Servomex now offers SIL 2 safety compliance for the 2222H transmitter unit of its Servotough OxyExact 2200 oxygen gas analyser.

A high-precision oxygen analyser designed for use in hazardous area installations, the OxyExact utilises Servomex’s patent field-proven, non-depleting Paramagnetic sensing technology for an accurate repeatable oxygen measurement.

Using a three-enclosure system to ensure safe operation, it measures enriched oxygen (up to 100% O2) in potentially flammable sample gases at pressures up to 45psia. This system dramatically reduces ongoing costs by removing the need for pre-sample drying.

Used in process control applications where high-temperature, high-performance oxygen measurements are required, the OxyExact is useful in a range of hydrocarbon processing applications including the production of ethylene oxide, propylene oxide, ethylene dichloride, and vinyl acetate monomer acid.

The oxygen gas analyser is configured as a central control unit configured with up to six transmitters for easy device interaction and set-up.

The 2222H is now assessed as being SIL 2 compliant for use in safety instrumented systems in respect of hardware integrity only, according to IEC 61508 part 2:2010. This means the OxyExact is certified for safe use in an even wider range of hazardous environments. The assessment covers the transmitter unit configured with or without the optional internal flow alarm feature.

Read the article online at:

You might also like

Hydrocarbon Engineering Spotlight with Watlow

Chelsea Hogard, Engineering Team Leader for Watlow’s Industry 4.0 Development Team, joins us to discuss the importance of Data Insights in mitigating the risks associated with process heating.


Embed article link: (copy the HTML code below):


This article has been tagged under the following:

Downstream news