Profile: optek-Danulat, Inc. specializes in the development and support of high-performance inline photometric analyzers for liquid & gas-processing applications. We have developed a complete line of turbidity meters, colorimeters, UV absorption, and pH & conductivity sensors that are installed in some of the roughest process conditions, in plants all over the world. We maintain a large inventory of analyzers, parts and accessories. We can provide products specifically configured to meet the requirements of our clients, rapidly and efficiently. Our inline turbidity meters, lab turbidimeters, and optical density probes can be specified to measure turbidity, haze, clarity & optical density in units of FTU, NTU, EBC, OD, PPM, percent & many others. These are commonly applied in various process applications that include filter performance & filter break monitoring, gas bubble detection, particle content & concentration, total suspended solids (TSS), interface detection, BOD, and leak detection. Our colorimeters, VIS-NIR concentration analyzers, and color monitors are ideal for a multitude of real-time measurements for improved process control. Installed directly in process pipelines, tanks & vessels using flow-through & probe type sensors, these reliable analyzers can be configured to measure the concentration of numerous chemicals and can be correlated to many color scales including APHA, ASTM, Saybolt, ASBC-SRM, ICUMSA, AOCS, HAZEN & others. Its typical applications include the concentration of bromine, chlorine dioxide, chlorine, nickel, copper, chromium, hemoglobin, chlorophyll as well as color addition and removal control, leak detection/carryover, product interface & dosing/blending control. Our UV sensors can be effectively applied to a broad range of process applications measuring ultra-violet absorbance, transmittance, optical density, and chemical concentrations from low parts-per-million (PPM), to high percent-levels.