Showing posts with label inline process refractometer. Show all posts
Showing posts with label inline process refractometer. Show all posts

Wednesday, July 18, 2018

Process Refractometers Used in Industry

Process refractometer
Technician adjusts process refractometer in plant.
(Electron Machine)
Process refractometers provide the analysis to quickly, reliably, and very accurately identify a sample and determine it's concentration and purity levels. They measure the refractive index and temperature of flowing liquids, and apply mathematical functions to determine the concentration of dissolved solids.

Part physics, part material science and part chemistry, refractometry is the process which measures the composition of known substances by means of calculating their respective refractive indexes (RI).  Light bends and changes velocity as it travels from one media into another through the media interface. When light traveling through air enters liquid, the light rays change direction by an amount determined by the liquid's density. RIs are evaluated via a refractometer, a device which measures the curve, or refraction. The
unitless number given by the refractometer, usually between 1.3000 and 1.7000, is the RI. The composition of substances is then determined when the RI is compared to a standard curve specific to the material of the substance. Standard tables are available that correlate RI to a variety of materials. These same tables also correlate RI to varying concentrations of particular liquid media at a particular temperature. Take corn syrup for example. Different refractive indexes are observed for different corn syrup samples of different concentrations. Therefore, by using a process refractometer to observe the RI of a particular corn syrup sample, a determination of the concentration of that particular sample can be made. By referring to the table or scale that correlates the RI to concentration at a particular fixed temperature, liquid concentration can be determined.

Common industrial refractometer applications are:

Process refractometer
Process refractometer with flanged spool adapter.
(Electron Machine)
  • Calculating amount of sugar dissolved in juices and beverages.
  • In commercial food applications such as juice production or tomato processing, refractometers are used to measure degrees Brix (the Brix scale relates refractive index to sugar concentration, and is a key way to maintain consistency).
  • In the pharmaceutical industry, process refractometers are used to monitor and control concentration levels during supersaturation, a critical process in crystallization.
  • In pulp and paper production, process refractometers for measuring dissolved solids in black and green liquor during the chemical recovery process.

Equipment manufacturers have developed numerous refractometer configurations tailored to specific each use and application. Each has a set of features making it the advantageous choice for its intended application. Product specialists are invaluable sources of information and assistance to potential refractometer users seeking to match the best equipment to their application or process.

For more information on industrial refractometers, contact Alliance Technical Sales by visiting or by calling 630-321-9646.

Saturday, April 21, 2018

Process Refractometers for Food and Pharmaceutical Use

Process Refractometers
Process refractometer with sanitary adapter
for food and pharmaceutical. (Electron Machine)
There are many industrial applications for process refractometers; particularly useful in the food and pharmaceutical industries, where there is a need for solids content measurement. Process refractometers are used to optimize production processes, ensure consistency and purity, and in managing quality control. Process refractometers and inline process refractometers, are types of refractometers designed for the continuous measurement of a fluid flowing through a pipe or inside a tank. They provide analysis to quickly, dependably, and to accurately identify a sample to determine its concentration and purity levels. By measuring the refractive index and temperature of flowing liquids, refractometers can then apply a mathematical function to determine the precise concentration of dissolved solids.

In commercial food applications such as jam or jelly production or the processing of soft drinks or wine, refractometers are used to measure degrees Brix. Bix is a graduated scale, used on a hydrometer, that indicates the weight of sugar per volume of solution at a given temperature. The Brix scale relates refractive index to sugar concentration, and is a method of maintaining consistency. For example, process refractometers are used for the concentration process of fruit juices. The concentration process is normally achieved by removing water through evaporation, and by measuring Brix, the evaporation process can be controlled and related to the desired juice concentration.

Process refractometers are also used in pharmaceutical processing where there is the need to monitor and control concentration levels during supersaturation, a critical process in crystallization. Crystallization is a critical element in the purification of solids in pharmaceutical production. The process refractometer guarantees precise monitoring and a high degree of measurement accuracy and reliability, towards the production of a pure product.

For more information on the application of process refractometers, contact Alliance Technical Sales by visiting or by calling 630-321-9646

Friday, February 2, 2018

Some Recent Literature Updates for Electron Machine Corporation

industrial refractometer inline process measurement
MPR E-Scan is a rugged, industrialized
in-line process refractometer.
Image courtesy Electron Machine Corp.
Electron Machine Corporation, manufacturer of industrial process refractometers, recently updated some of their product, application and support literature. The new documents are described and linked below. Share your process measurement challenges, and any questions you may have about the Electron Machine process refractometers, with a product specialist. Leverage your own knowledge and experience with their product application expertise to develop effective solutions.

Operating and Service Manual for MPR E-Scan
Service manual for the MPR E-Scan, a hybrid-digital critical angle in-line process refractometer. It is used to measure the refractive index of process fluids.

MDS (Monitor Divert System) Color Manual
Service manual for the Monitor Divert System, a BLRBAC (Black Liquor Recovery Boiler Advisory Committee) compliant Black Liquor solids monitoring system designed specifically for Black Liquor recovery boilers.

Refractometers for Food Industry
Brochure for refractometers used to detect sugar levels and properties of jams juices, beverages, dairy products and much more.

Refractometers for Chemical Industry
Brochure for the MPR E-Scan used for measuring the strength of a chemical when diluted with water or with another chemical.

MPR E-Scan Sales Brochure
The MPR E-Scan is a rugged, industrialized, in-line process refractometer. It directly measures the refractive index of process fluids and then displays the reading in any number of customer-desired units (Brix, Percent Solids, Dissolved Solids, SGU, R.I., etc.).

Thursday, September 21, 2017

Applying Process Refractometers in Sugar Cane Processing

in line process refractometer
In-line process refractometer
Image courtesy Electron Machine Corp.
Sugar cane, after harvesting, requires processing within a limited time window to avoid sugar loss by inversion to glucose and fructose. The traditional two stage process, milling and processing, may be combined in a single modern production facility. Process refractometers can be found in both operations, making an optical measurement of a solution’s refractive index used to determine the concentration of dissolved solids.

To achieve high quality liquid and crystal sugars and contain production cost, refractometers are employed to deliver accurate in-line Brix and other measurements in the cane sugar refining and milling processes.

Specific uses of refractometers in sugar production are:
  • Product flow adaptation to evaporator capacity to achieve energy savings.
  • Extraction process optimization, minimizing the use of water that will need to be removed at the evaporator.
  • Separation column feed juice control to adjust concentration to match capacity.
  • Quality assurance check on liquid bulk sugar and molasses.
  • Vacuum pan automatic and accurate seeding.
  • Monitor supersaturation over complete strike of crystallization.
Share your process analytic and measurement challenges with the experts at application specialists, leveraging your own process knowledge and experience with their product application expertise to develop an effective solution.