High-technology workhorse

The ABB's continuous gas analyzer module Uras26 photometer uses high performance measurement technology and has the ability to quantify ultralow concentrations of the gas. The advanced algorithms running on its digital signal processor eliminate much of the guesswork and imprecision that is associated with traditional instruments. In this the concentration of upto four process gas components can be reliably determined by connecting detectors in series. The Uras26 also has integrated calibration cells which automatically move into the optical beam path. The maintenance costs are markedly reduced because built-in calibration dispenses with the need for expensive test gas cylinders. It provides extended signal analysis capabilities such as signal filtering, diagnostic functions and cross sensitivity optimization. A low noise measurement is provided by periodic modulation of the IR radiation source interrupter disk and subsequent frequency and phase selective amplification.