The Precisive® 5-253 is a real-time hydrocarbon gas analyzer based on Tunable Filter Spectroscopy. Calibrated for on-line acid or sour gas composition monitoring and heating value analysis, this package is optimized for multicomponent gas product analysis containing C1 – C6 alkane gases, plus high-concentration CO2 and H2S, with optional NH3 and H2O channels. It offers a fast-response alternative to gas chromatographs, and additional hydrocarbon measurement capabilities over traditional UV analyzers.
The Precisive TFS™ (Tunable Filter Spectrometer) sensor platform consists of a light source, a sample cell (for gases, liquids or solids), a wavelength separating element (spectrometer) and a photo-detector. The wavelength separating element "slices" the wavelength components of the broadband light source which then interacts with the sample molecules. Some of the wavelength components are absorbed and some are transmitted through without any absorption.
Precisive TFS™ Tunable Filter Spectrometers use an advanced spectral decomposition algorithm. The resulting spectrum is called absorption spectrum, which acts as "fingerprints" which are used to identify the sample components and/or quantify the composition of the sample.