Enhancements to flue gas analyser

The 6888 incorporates a ‘calibration recommended’ diagnostic with gas-switching solenoids embedded within the probe electronics, making automatic calibration easier, and maintaining a high degree of accuracy.

The embedded diagnostic reduces the cost of providing and installing a separate solenoid box, and reduces the effort to wire and pipe between the probe and electronics, decreasing man-hour requirements.

Additionally, the calibration recommended diagnostic removes the need to conduct calibrations on a schedule, eliminating many validations (calibrations checks) or actual calibrations. The analyser includes a ‘plugged diffuser/filter’ diagnostic for applications that have fly ash or other particulate entrained in the flue gases, which further reduces personnel time and maintenance as well as helping to ensure accuracy.

Another new feature of the 6888 is a variable insertion option, which permits ideal placement of the probe into the flue gas duct. With standard length probes from 0.5m  to 3.65m in horizontal or vertical installation, the probe can be adjusted at any time on-line to characterise stratification across large ducts.

"The new 6888 has raised the bar on flue gas analyser operation while maintaining exceptional economy for our customers,” said Doug Simmers, combustion analyser worldwide product manager, Emerson Process Management, Rosemount Analytical. "In today’s industrial applications, where budgets are tight and personnel time limited, the 6888 provides essential analysis of combustion efficiency, while significantly reducing maintenance time and the cost of unnecessary calibrations – all in an affordable analyser with great accuracy. This improved accuracy not only provides better combustion efficiency, but can minimise the production of greenhouse gases such as CO2, and of thermal NOx.”