Atago 2363 Brix Heat Resistant Hand-Held Refractometers, MASTER-500 MASTER series , Brix : 0.0 to 90.0% Measurement Range

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Ultimate Functionality , Unsurpassed Quality, Seamless Usability 

MASTER-500 is 0-90% wide brix model of the MASTER-Series with heat resistant and Water resistant.

  • All samples
Measurement RangeBrix : 0.0 to 90.0%
Minimum ScaleBrix : 1.0%
Measurement AccuracyBrix : ±1.0%
RepeatabilityBrix : ±0.5%
International Protection ClassIP65 (except eye piece) Dust-tight and Protected against water jets.
Dimensions & Weight3.2 x 3.4 x 16.8cm, 130g

Design Registration No.000379326-0001, 000379326-0002 (EU)
ZL 2005 3 0116403.4,5 (China), D111526 (Taiwan), D555, 549 (U.S.A.),
1255763, 1255764, 1255765, 1255766, 1255767 (Japan)
Patent Granted in countries around the world.

Call 01463 830401 For Any Assistance

Simple Operation

Apply 1-2 drops onto the prism.

Close the daylight plate. View the scale through the eyepiece.

Read the measurement value where the boundary line intersects the scale.

How to choose suitable model?


⒈ Please select category, suitable samples or measurement range from the list of MASTER series

⒉ If you are not sure the range of your sample, please refer to our data book


Please select the material

⒈ Metal body : Die-cast aluminium, Ideal for the agriculture industry, metal working fluids and various high-temperature samples
⒉ Plastic body : PBT (Polybutylene terephthalate), resistant to salty and acidic samples


Please select features

  • α : Water resistant (IP65)
  • T : Automatic temperature compensation (ATC)
  • M : Low cost model without the above function
  • S : Suitable for Milky sample

Both the α and T types are equipped with the Automatic Temperature Compensation feature. Choose the α type for the added feature of IP 65 water-resistance. The H type is the heat-resistant version of the α type.

The concept of a washable hand-held analog unit is exceptional. After measuring, the instrument can be
cleaned with running water under a faucet. The new structural  design of these units allows them to be 
washed whenever necessary. Rated IP65 (dust tight and water resistant).
Sample size 2-3 drops.
The newly designed ATC system allows the MASTER series to read more accurately than any comparable unit. ATAGO has applied for a patent on the design of the improved ATC system. The MASTER series reads more accurately than any comparable unit in the market.The Automatic Temperature Compensation function of the MASTER-α, T, H series enables you to take measurement readings regardless of the ambient temperature.ATAGO has developed a spoon-shaped tip that automatically spreads the sample across the prism. This makes the instrument even more user-friendly. saving valuable time.
Convenient Storage case.  

The MASTER series has been improved with a clearer, brighter field of view and made even easier to carry.


Compact Redesign of the MASTER Series (from October 2014)

The MASTER series has been improved with a clearer, brighter field of view and made even easier to carry.
These improvements in our newly compact redesigned models are especially clear when taking measurements in dim lighting, or measuring darkly-coloured samples. Even when measuring milky-coloured, opaque, or oily samples, the boundary line remains crisp and clear.

Note: The size of the scale has changed. It may take some time to re-adjust to the new field of view when reading measurements.



Icons, for functions, specifications and scales have been added to this catalogue

Can be connected to a recorderCan be connected to a recorderMeasurement at a set temperatureMeasurement at a set temperature
Can be connected to a printerCan be connected to a printerAutomatic Temperature CompensationAutomatic Temperature Compensation
Alarm output for high- and low-limit valuesAlarm output for high- and low-limit valuesCan be connected to a circulating Can be connected to a circulating
RS-232C InterfaceRS-232C InterfaceContinuous measurementContinuous measurement
In-line measurementIn-line measurementHigh temperature samplesHigh temperature samples
User scales can be inputtedUser scales can be inputtedExternal Light InterferenceExternal Light Interference
Calibration with waterCalibration with waterClinical refractometersClinical refractometers
Calibration with exclusive standard liquidCalibration with exclusive standard liquidRefractive index scaleRefractive index scale
Compact and easy to carryCompact and easy to carrySalt concentration scaleSalt concentration scale
Digital displayDigital displaySeawater scaleSeawater scale
AC outlet (AC100 to 240V)AC outlet (AC100 to 240V)Wine scaleWine scale
Battery operatedBattery operated  
    • SKU
    • Commodity Codes
  • Measurement Range
    Brix : 0.0 to 90.0%
  • Measurement Accuracy
  • Body Material
    Metal body : Die-cast aluminum, Ideal for the agriculture industry, metal working fluids and various high-temperature samples
  • Other Features
    α : Water resistant (IP65), Heat Resistance
  • Use
  • International Protection Class
  • Manufacturer
    Atago Co Ltd
  • Country of Origin