ATR-P Touch

TheATR-P is a critical angle refractometer specially designed for applications in the sugar industry. The complete system consists of the ATR-P measuring head and the “L-Controller” electronic unit or the ATR-P measuring head can be connected to a PC or laptop. Included with the basic configuration is the user-friendly PC software “Aquisys Basic”.


  • High-performance refractometer
  • Rugged measuring head (IP65)
  • Single or flow-through measurements
  • For permanent use in production laboratories
  • Use in combination with Saccharomat V or Polartronic polarimeters

High-performance, robust refractometer for the determination of mixing ratios (mass percent)

  • Quality and quantity control of liquids, especially for sucrose solutions
  • Highly accurate and reproducible measuring results in no time at all
  • Electronic unit separated from measuring head
  • Waterproof measuring head made from stainless steel
  • Operating mode alternatively in a horizontal or vertical position
  • Single or flow-through measurement
  • Various sample room covers/flow-through door options available
  • Built-in Peltier system and a precision thermometer for fast, precise temperature control
  • Temperature correction of samples via external water bath – rapid temperature correction of larger sample volumes
  • Temperature compensation of Brix scale
  • Easy to calibrate with sucrose solutions
  • Measuring head can be connected to the PC and operated as a stand-alone device
  • Optional L-controller with user-friendly Operation System with a high resolution 7″ TFT Touchscreen display
  • Designed for rough environments
  • Documentation according to GLP/GMP
  • Energy-saving LED light source

Main specifications

Measuring scales Refractive Index (RI)
Sucrose (°Brix)
Customized scales
Measuring range 1,32000 – 1,54000 RI / 100 °Brix
Resolution 0,00001 RI / 0,01 °Brix
Precision ± 0,00002 RI / ± 0,02 °Brix
Reproducibility ± 0,00001 RI / ± 0,01 °Brix
Measurement mode Single sample or flow-through measurement


Ambient temperature +10 – +40 °C
Temperature measurement NTC sensor for measurement of sample temperature placed inside the prism
Temperature control sample By external water bath
Temperature control range +5 – +50 °C
Temperature resolution 0.01 °C
Temperature precision ± 0.03 °C
Temperature reproducibility ± 0.02 °C
Temperature compensation Brix +5 bis +50 °C

Additional information

Prism Saphire
Light source/wavelength LED, interference filter 589 nm
Display 7″ touch screen, 800 x 480 Pixel, 16 Bit colors
Operation Touchscreen, keyboard, mouse, barcode-reader, remote via PC
Interfaces/communication 2xRS232 C serial, 3xUSB (A), 1xUSB (B), 1xEthernet, easy connection of keyboard, mouse, printer, bar code reader, PC and network
Power consumption (measuring head) 90 V / 50 Hz – 1,5 W
90 V / 60 Hz – 1,4 W
110 V / 50 Hz – 1,4 W
110 V / 60 Hz – 1,5 W
230 V / 50 Hz – 1,6 W
230 V / 60 Hz – 1,7 W


Standards* International Pharmacopoea, ASTM, ICUMSA and others

* Specific standard depends on the application and the country it is used in. Details on request.