Analyzer Sample Systems
Some analyzers measure the composition of a process stream by directly immersing the sensing element in that stream. This is called in situ measurement, which is a Latin phrase meaning…
Dual-beam Non-dispersive Analyzer
One way to improve on the single-beam analyzer design is to split the light beam into two equal halves, then pass each half-beam through its own cell. Only one of…
Single-beam Non-dispersive Analyzer
Non-dispersive analyzers employ the principle of spectrographic absorption to measure how much of a particular substance exists within a sample. NDIR gas analyzers shine light through a windowed sample chamber…
Non-Dispersive Analyzers
Non-dispersive analysis, while newer in discovery than dispersive analysis (Isaac Newton’s 17th century prism), has actually seen far earlier application as continuous process analyzers. The basic design was developed during…
Dispersive Spectroscopy
The dispersion of visible light into its constituent colors goes all the way back to the 17th century with Isaac Newton’s experiments, taking a glass prism and generating the characteristic…
Absorption Type Optical Analyzer
Light is known to interact with matter in very specific ways, which may be exploited as a means of measuring chemical composition. Either a sample of substance to be analyzed…
Standardized Volumetric Flow
Flow meters operate on principle of interpreting fluid flow based on velocity of fluid. Examples are Magnetic, ultrasonic, turbine, vortex flow meters
Multi Column Gas Chromatograph
Improving Chromatograph Analysis Time with Multi Column Gas Chromatograph The “Achilles heel” of chromatography is the extraordinary length of time required to perform analyses, compared with many other analytical methods. Cycle…
Chromatograph Sample Valves
Arguably, the component most critical to measurement accuracy in a gas chromatograph is the sample valve. Its purpose is to inject the exact same sample quantity into the column at…
Industrial Applications of Chromatographs
Since process chromatographs have the ability to independently analyze the quantities of multiple species within a chemical sample, these instruments are inherently multi-variable. A single analog output signal (e.g. 4-20…
