Everyone can use some help from their friends. Even zirconia oxide-based oxygen analyzers can get crucial support from accessories that greatly improve their performance.
These analyzers typically measure a millivolt differential across a cell or disk that correlates to the level of excess oxygen in the flue gas. These oxygen measurements can be used to optimize the efficiency of combustion processes. However, these longtime, standardized analyzers are historically difficult to install, commission and maintain, especially in hot, high-particulate and/or high-sulfur settings.
To shoulder some of the burden on oxygen analyzers and their users, Emerson has launched its Rosemount CX2100 in situ oxygen analyzer that provides a new, quick-connect feature for faster set up and service; calibration check and autocalibration features; guided and remote setup via a host such as a control or asset management system; commissioning in seven languages; interactive local operations interface (LOI); and robust components for extended maintenance life. Its accessories also include an oxygen cell that can serve five to 10 years on average in standard environments. There’s also an optional high-sulfur oxygen cell for added cell protection in high-sulfur or corrosive conditions. These Rosemount oxygen cells feature a robust design containing platinum beads that catalyze sulfur and lengthen their life.
“CX2100 combines traditional zirconia-analyzer technology with enhanced features, such as their quick-connect design to streamline maintenance and reduce process downtime, and remote configuration options to keep personnel off stacks and out of dangerous locations,” says Peyton Munoz, global product manager for analytical instruments at Emerson. “The new quick connect probe body allows easier setup and maintenance with a plug-and-play design compared to traditional screw-down leads that take minutes to perform. This allows faster replacement or repairs with less rewiring.”
CX2100’s new LOI features capacitive-touch buttons and other customization options, inclusing a software-based calibration check process that helps monitor emissions for compliance with local regulations. It’s housed in a protective, metal enclosure to work in high-temperature settings, and simplifies the process of measuring calibration gas at two points to check for measurement drift.
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Munoz reports CX2100 also features a wide range of accessories that enable it to be customized to meet the unique needs of customers’ installations, including:
Abrasive shield that further protects the probe against high-particulate or high-sulfur settings.
Bypass assembly that extends the probe, lets flue gases cool before reaching it, allowing its use in high-temperatures.
Field-replaceable, snubber, ceramic or Alloy C-276 diffusers that protect the end of probe from degradation in a range of high temperatures.
Probe mounting jackets made of a variety of insulating materials that protect CX2100 from very high temperatures or other harsh conditions.
“We worked closely with our users to tailor all of CX2100’s different accessories to precisely meet their individual requirements,” explains Munoz. “One such feature is the autocalibration and autocalibration-check features that regularly verify CX2100’s measurement drift. This means technicians don’t have to physically visit it as often. This frees them to work on higher-value tasks, and enhances safety by making sure the analyzer stays within its calibration limits. If the autocalibration-check finds that it isn’t within its recommended drift range, then CX21000 will run a recalibration process.
“The analyzer further improves safety with a flame-safety interlock that automatically powers down the probe’s heater when a flameout is detected, allowing for an additional layer of protection.”
