The Model 350 continuos monitor targets NOx control applications including selective catalytic reduction (SCR) technologies where ammonia injection is used. The measurement system utilizes gas phase, ultra-violet absorption spectroscopy while the optic design uses a reliable double-pass system. A custom-designed keypad and display unit controls the system with menu- driven software that allows comprehensive configuration facilities. Model 350 features include continuous NH3, NOx and SO2 measurement, state-of-the-art photo diode array technology, SCR system optimization, ammonium sulfate formation prevention, elimination of problems associated with recombination (NH3 + SO2), and ammonia slip minimization.

Land Combustion