Digital Portable Refractometer RA-130

Portable Refractometer RA-130
Portable Refractometer RA-130

Are you looking for simple bench top instrument to replace you old optical Abbe Refractometer or for a portable device, which offers more possibilities than normal portable Refractometers? In both cases the RA-130 Refractometer is most probably the ideal solution for you.

The RA-130 is both, a bench top and a portable Refractometer
You can either place the instrument on your bench and add a drop of sample onto the cell or immerse the cell directly into the sample.

The RA-130 Refractometer offers many features and possibilities
would only expect from a real bench top Refractometer like automatic temperature compensation with user defined temperature coefficients, user defined scales for concentration measurements, etc.

Full-fledged data handling
The RA-130 can not only store up to 1100 measurement results in its internal memory, it stores these values together with sample identifications and the date and time when the measurements have been performed. Thanks to a built-in IrDA interface, measured results can be transmitted to a printer or a personal computer at anytime.

The RA-130 is well prepared for all types of sugar concentration measurements
as it is equipped with the three most commonly used scales in the sugar industry: Brix, HFCS42 and HFCS55.

A graphical backlit display
and an intuitive menu structure provide an easy operation and a clear visualization of the measured values.

Details

Two in one

The RA-130 is ergonomically designed for for two different ways of operation: The sample can either be applied onto the measuring cell or the measuring cell can directly be immersed into the sample to be measured.

RA-130 Refractometer used as bench top instrument
RA-130 Refractometer used as bench top instrument
RA-130 Refractometer used as immersion probe

10 temperature compensation coefficients provide enhanced accuracy of measurement

The refractive index of a sample depends on temperature. The RA-130 determines the temperature during measurement and corrects the result to a standard temperature of 20°C or any other temperature the user defines. The temperature compensation coefficient ⍺ used for this correction depends on the nature of the sample being measured. The RA-130 can store up to 10 such compensation coefficients and the user can easily switch between these coefficients prior to measurement.

The ⍺ key allows to select the appropriate temperature compensation coefficient
The ⍺ key allows to select the appropriate temperature compensation coefficient
The RA-130 can store up to 10 different temperature compensation coefficients

Easy data transmission

The RA-130 can store up to 1100 results in its internal memory. The results include the measured value, the temperature, the unit of the result, the date and time of measurement and the sample identification. One, several or all results can easily be transmitted to a printer or to a personal computer at any time. For this purpose, an IrDA interface is required. This interface available as an option.

Data transmission to IDP-100 printer with external IrDA interface (option)
Data transmission to IDP-100 printer with external IrDA interface (option)
Data transmission to personal computer with external IrDA interface (option)
Data transmission to laptop computer with built-in IrDA interface

Applications

Food and Beverage

  • Honey
  • Starch Syrup
  • Liquid Sugar
  • Isomerized Sugar
  • Glucose
  • Sweeteners
  • Beet Sugar
  • Jam, Marmalade
  • Fat & Oil
  • Cooking oil
  • Cottonseed oil
  • Sesame oil
  • Canola oil
  • Olive oil
  • Palm oil
  • Coconut oil
  • Condiments
  • Ketchup
  • Vinegar
  • Purée
  • Soy sauce
  • Alcoholic drinks
  • Beer
  • Wine
  • Japanese sake
  • Whisky
  • Soft drinks
  • Carbonated drinks
  • Fruit drinks
  • Coffee drinks
  • English tea
  • Milk
  • Soy milk
  • Lactic acid drinks
  • Fruits
  • Oranges
  • Grapes
  • Pears
  • Watermelons
  • Melons
  • Lemons
  • Apples
  • Grapefruit
  • Pineapples
  • Peaches
  • Limes
  • Tomatoes

Petroleum and Chemicals

  • Light oil
  • Kerosene
  • Gasoline
  • Cyclohexane
  • Styrene
  • Benzene
  • Toluene
  • Xylene
  • Quenching oils
  • Cutting oils
  • Lubricants
  • Water sol. lubricants
  • Insulating oils
  • Water sol. hydraulic oils
  • Water sol. metal working oils
  • Rust preventive oils
  • Water sol. quenching oils
  • Antifreeze
  • Ethylene glycol
  • Propylene glycol
  • Surfactants

Pharmaceuticals, Flavours & Fragrances, Cosmetics

  • Injection solutions
  • Chinese herbal remedy
  • Eyedrops
  • Shampoos
  • Glycerol
  • Hair conditioners
  • Detergents
  • Skin toner
  • Hair tonic
  • Serum
  • Disinfectants
  • Ethyl alcohol
  • Flavors
  • Fragrances
  • Essential oils

Technical Specifications

Measuring principle Detection of the angle of total reflection  
Light source LED 589.3 nm (NaD Line)  
Measuring range Refractive Index (nD)
Brix
HFCS42
HFCS55 
1.3200 … 1.5000
0.0 … 85.0 %
0.0 … 76.0 %
0.0 … 80.0 %
Limit of error

Refractive Index (nD)
Brix
HFCS42 | HFCS55

±0.0005
±0.2 %
±0.2 %
Resolution

Refractive Index (nD)
Brix
HFCS42 | HFCS55

0.0001
0.1 %
0.1 %
Temperature range sample 10 … 40°C  
Temperature indication resolution 0.1 °C  
Display contents Measuring value (nD, Brix, HFCS42, HFCS55 or concentration), Temperature (°C or °F), sample number, data storage, data output, data deletion, battery alarm  
Data storage 1'100 measurement results  
Temperature compensation Brix | HFCS42 | HFCS55
nD, concentrations
automatic
10 user defined coefficients 
Concentration By user defined linear formula  
Interface IrDA (V1.2)
Data output to printer or computer 
IrDA - RS converter required (option) 
Ambient conditions Temperature
Humidity
5 … 35 °C
85% RH max. (no condensation)
Minimum amount of sample 0.2 mL  
Power supply

Batteries
Lifespan of batteries

2xAAA (alkaline)
60 hours (1 meas. per minute)
Weight approx. 200 g  

Accessories

Printer

IDP-100 Printer
IDP-100 Printer

IDP-100 Printer

Dot matrix ink printer for GLP compliance.

  • Dot matrix printer with ink ribbon, prints on regular paper (width 57.5 ± 0.5mm).
  • 24 digits, 144 dots per line.
  • Automatic paper end detection - no loss of data!
  • 2 kB internal buffer memory. Advantage: Less time required per measurement, as the instrument does not have to wait until the results are printed out.
irDA - serial adapter
IrDA - serial adapter

IrDA - Serial adapter

Adapter required to transmit data from an RA-130 Refractometer or a DA-130N Density Meter to a personal computer or a printer; ordering number 69-00733.

  • In order to connect this IrDA adapter to an IDP-100 printer, a 9 to 25 pin serial adapter (ordering number 64-01127-01) is required.
  • Some laptop computers are already equipped with an IrDA interface. In such cases no IrDA adapter is required.
Serial adapter
9 to 25 pin serial adapter

Serial adapter

9 to 25 pin serial adapter; ordering number  64-01127-01. Required to connect an IrDA adapter to an IDP-100 printer.

Certified Standard Reference Material

Refractive index determination with laser interferometer
Refractive index determination with laser interferometer

Liquid Refractive Index and Brix Standards

 

jcsslogo.png

 

KEM does not only supply refractometers, it has was well a JCSS (Japan Calibration Service System) Accredited Calibration Laboratory (assessed on JIS Q 17025:2000 (ISO/IEC 17025:1999) where a wide range of certified refractive index standard reference material is produced. KEM has the JCSS accreditation number 0115. The refractive index of these standards is determined with a laser interferometer. All standards come with a certificate bearing the JCSS symbol which assures their traceability to National Measurement Standards of Japan which are recognized worldwide through the ILAC and APLAC MRA.

 

Certified Refractive Index Standard Reference Material
Certified Refractive Index Standard Reference Material

The refractive index standard reference material is always supplied as a set of two 10 mL vials: 1 vial of standard reference material water and one vial of standard reference material with a different refractive index (organic solvent). The refractive index standard reference material has a shelf life of 12 months.  The certified Brix standard reference material is supplied in sets of two 10 mL vials. This type of standard reference material has a shelf life of 1 month only.

 

StandardRefractive Index (nD at 20°C)Limit of error (nD)Ordering number
Water / 2 bottles 1.33299 ±0.00003  12-01610-02
Iso-Octane/Water/ea. 1 bottle 1.391.. ±0.00003  12-04077-02
Dichlorotoluene /Water/ea. 1 bottle 1) 1.546.. ±0.00003 12-04080-02
Dibenzyl ether/Water/ea. 1 bottle 1) 1.563.. ±0.00003 12-04081-02
1-Bromonapthalene/Water/ea. 1 bottle 1) 2) 1.658.. ±0.00003 12-04082-02

1) Not suitable for the RA-130 Refractometer
2) Not suitable for the RA-600 Refractometer 

 

StandardBrix% | nDLimit of error (nD)Ordering number
5% Brix solution / 2 bottles 5% Brix | 1.340.. nD ±0.013% Brix | ±0.00002 nD 12-04083-10
10% Brix solution / 2 bottles 10% Brix | 1.347.. nD ±0.013% Brix | ±0.00002 nD 12-04083-11
20% Brix solution / 2 bottles 20% Brix | 1.363.. nD ±0.013% Brix | ±0.00002 nD 12-04083-12
30% Brix solution / 2 bottles 30% Brix | 1.381.. nD ±0.013% Brix | ±0.00002 nD 12-04083-13
40% Brix solution / 2 bottles 40% Brix | 1.399.. nD ±0.013% Brix | ±0.00002 nD 12-04083-14
50% Brix solution / 2 bottles 50% Brix | 1.420.. nD ±0.013% Brix | ±0.00002 nD 12-04083-15
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