The Advance Optima Uras 14 Gas Analyzer by Hartmann & Braun is a continuous non-dispersive infrared (NDIR) photometer. This modular unit can selectively measure the concentrations of as many as four gas components, including CO, CO2, CH4, SO2, and NOx. It includes a system control module, a user interface, and multiple analyzer modules, all of which connect directly into a single standard housing. The system offer high stability and selectivity, and features gas filled opto-pneumatic detectors that are optimized for each application to maximize sensitivity and minimize interference. Internal calibration cells within the unit circumvent the need for costly bottled test gas mixtures, which significantly reduces operation and maintenance expenses. The Advance Optima Uras 14 is best suited for applications such as emission monitoring, burner optimization and in process control or optimization of purification stages. Additional specifications for this unit include: linear deviation â‰¤ 1% of span, reproducibility â‰¤ 0.5% of span, and detection limit of â‰¤ 0.5% of span.