Refractometer – In-line Brix


These new, in-line Atago® refractometers can be incorporated in piping of manufacturing plants, liquid mixing devices and washing apparatus to continuously measure the concentration / brix of various liquids.


  • Mixing, diluting and concentrating processes at food manufacturing plants – such as fruit juice, soft drinks, coffee, cocoa, alcoholic beverages, tomato paste, sauce, ketchup, vinegar, pickled liquid, wort, condensed milk
  • Concentrates and syrups – Estimate ratios for reconstitution by measuring the brix
  • Breweries – measure wort levels when boiling
  • Dairies – Evaluate solids in condensed and evaporated milks
  • Sauces and seasonings – useful to control ratios when combining samples from different lines
  • Sugars and starches- check brix
  • Oils and lubricants – manage the concentration to prevent overheating or foaming
  • Wastewater – automate a system that redirects suitable water for recirculation or waste, based on the solids content
  • Other industries – check the moisture level, contamination level or concentration of liquids in various other industries such as pharmaceutical, coffee or cleaning fluids


  • Light and compact
  • IP64 dust-tight and protected against splashing water
  • Temperature range of 5 to 100°C
  • User-programmable coefficient for Automatic Temperature Compensation (ATC)
  • Accuracy of approximately 0.1%
  • The Sample Temperature can be displayed by pressing the down arrow key whilst measuring Brix (%)
  • Safe for Clean-In-Place processes up to 130°C (power source must be turned off)
  • Auto Control – the recorder output (4 to 20 mA) and the RS232C output are incorporated to enable automatic control by interlinking with external equipment.


  • NEW! PRM-2000α – precise measurement of low concentration samples, including fruit juices and other beverages
  • PRM-100α – concentrates, beverages, starch, sauces, polymers, oils, cleaning fluids, wastewater, medicines
  • CM-800α – compatible with the PRM-100α fittings
  • CM-800α-EG – measurements of ethylene glycol solutions used as coolants, brine, anti-freeze, and de-icing fluids; secondary scale for freezing point
  • CM-800α-PG – propylene glycol solutions used as coolants, brine, anti-freeze, and de-icing fluids; secondary scale for freezing point
  • CM-800α-SW – concentrations of sodium chloride in water (0.0-28.0%)
  • Many other options, please contact us if you have a different application

Special Order Options:

  • SUS316L customizable
  • PROFIBUS compatible
  • VARIVENT compatible

Easy to Install: See Video Guide


One year

Measurement scale Brix (automatic temperature compensation according to the sample liquid)
Measurement range Brix: 0.0 ~ 80.0%, temperature 5 ~ 100°C

Brix: 0.01 or 0.1 (with an option to display measurements between 0.00 and 9.99% to the 2nd decimal place)

Measurement Accuracy Brix: approx. 0.1%
Measurement Temperature
(Automatic Temperature Compensation)
5 ~ 100°C
Wetted Parts Temperature -30 ~ 150°C
Ambient Temperature 5 ~ 40°C
Output Recorder output: DC 4 to 20 mA
RS-232C output
Materials in contact with solution Prism: artificial sapphire
Prism stage: SUS316
Power Supply DC24 V (Power consumption 3 VA)
Battery life approx. 11 000 measurements
International Class Protection IP64 water resistant
Dimensions and Weight 16 (W) x 17(D) x 11 (H) mm, 2.4 kg (main unit only)

Delivery Content:

  • Refractometer
  • Power input cable (1m)
  • Instruction leaflet

Additional information

Weight 0.00 kg