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MANUAL HANDHELD REFRACTOMETER         measuring instrument
 
 
Manual Hand-held Refractometers
HR Series Manual Hand-hled Refractometers
 
Manual handheld refractometers are for fast everyday use.
They are particularly easy to use and very sturdy.
Various scales and additional functions ensure that there is exactly the right handheld refractometer for many application areas. This makes for reliability when reading, as the measured value does not first have to be converted.
 
Some models have an automatic temperature compensation feature that increases measurement precision,
the measurements are performed at 10 - 40”ĘC instead of 20”ĘC.
For calibration, distilled water is required, or else a small calibration plate is provided.
 

APPLICATIONS

The handheld refractometer can determine mixing ratios, quality and quantity inspection in the following industries:
- Pulp and paper industries
- Beverage industry
- Food industry
- Sugar and sweetener industries
- Textiles industry
- Pharmaceutical industry
- Chemical industry
- Petrochemical industry
- Metalworking industry
- Wastewater management
 
 
Gemstone Refractometers
Model ER601 and ER604 Gemstone Refractometers
 
Gemstone refractometers are used for the classification and quality control of gemstones.
The gemstone to be examined is simply placed on the prism with a drop of contact fluid.
The refractive index of the gemstone is read through the ocular of the refractometer.
The refractive index is an important parameter in classifying a mineral or gemstone.
Each mineral has its typical refractive index, due to its chemical composition and crystalline structure.
Our gemstone refractometers are characterised by their particularly sharp image and good readability.
With the sodium filter that only lets through light with a wavelength of 589 nm, the refractometer can be used as a mobile unit with an ordinary light source or with sufficient ambient lighting.
LED illumination is also available with a wavelength of 589 nm.
 
 

OVERVIEW

Standard Gem Refractometers
Professional Gem Refractometers
MODEL
ER604
ER604-LED
ER601-NA
ER601-LED
Measurement Range 1.33 - 1.81 nD 1.33 - 1.81 nD 1.33 - 1.83 nD 1.33 - 1.83 nD
Resolution 0.01 nD 0.01 nD 0.01 nD 0.01 nD
Monochromator

Na-Filter 589 nm

Na-Filter 589 nm

Na-Filter 589 nm

-
Illumination
-
LED 589 nm
-
LED 589 nm
Prism Optical glass
Housing Cast aluminium
 
 
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