refractometer

 

(Digital Refractometer, Hand-held Refractometer, Hand Held Refractometer, Illumination Hand Held Refractometer, Abbe Refractometer, Bench-top Refractometer, Gem Refractometer, Gemological Refractometer)

 

OTR series handheld refractometer NTR series handheld refractometer Illumination handheld refractometer
     
Abbe refractometer Digital handheld Refractometer Digital bench-top Refractometer
     
Gem refractometer    

gem refractometer / gemological refractometer

Product Name:
 RHG600
Product Explains

  This model is Gemological refractometer. It can be used for measuring Refractive index of Gemstone or Ore. The index of double refraction can be also measured. Through the parameter you can judge whether a gem is uniaxial or biaxial photopositive or photonegative.

It is also kind of student model. This model is very traditional and it without built-in light source. A small and convenient torch was available.

RHG600 is for high level/professional using, it is quicker operation/action and then quicker reading display than model RHG700 and RHG800.

RHG600 is equipped with torch in standard delivery. but reflective index oil 1.79RI is not included. If you need, you have to purchase it separately.

Filters:

1, A built-in monochromatic light filter

2, Polarizing filter

Specification:
Scale range:1.30-1.81 RI
Minimum Division: 0.01RI

Accuracy: +/- 0.01RI

Dimension: 125mm*70mm*40mm

 

Product Name:

 RHG600I

Product Explains

  This model is Gemological Refractometer. It can be used for measuring Refractive index of Gemstone or Ore. The index of double refraction can be also measured. Through the parameter you can judge whether a gem is uniaxial or biaxial photopositive or photonegative.
For more convenient using, this item have built-in LED light source, the LED can at least offer 10000hours working! And also, the special design offers other way to get the light source if the built-in light source can't work, there is a light entrance in the back side and the filter for light source also built-in. A small torch as outside light source also included without any extra cost!

Filters:

1, A built-in monochromatic light filter

2, Polarizing filter

Specification:
Measuring Range: 1.30 - 1.81 RI
Minimum Graduation: (RI) 0.01 RI

Accuracy: +/- 0.01 RI
Illumination: Internal Light Source with momentary/power switch
Dimension: 125mm x 70mm x 40mm
Scale Division : 0.01 ND
Weight: 0.6 kg
Filter: Polarizing filter
Power: 3pcs LR44 Button Battery

  

 

Product Name:
 RHG900
Product Explains

  This model can be precisely determined in accordance with the measured value of refractive index because every kind of gem has its inherent refractive index. Besides, index of double of refraction can be also measured. Through the parameter you can judge whether a gem is uniaxial or biaxial photopositive or photonegative.
The gemological refractometer is characterized by small volume and less weight. It is easy to carry. It is popular instrument used on jewelry market. This RHG900 is a professional model for issuing the certificate for gemstones. It is most popular used om labs and jewellery insitutes. Our RHG-900 is the first choice for issuing certificates for gemstones!
RHG900 is equipped with torch in standard delivery, but reflective index oil 1.79RI is not included. If you need, you have to purchase it separately.
Features:

1, Identify singly & doubly gemstones quickly and accurately

2, Uniquely designed

3, Approved by strict quality and safety standard for long and trouble-free life

4, Guaranteed high quality and accurate testing results

Specification:
Range: 1.30-1.81RI
Minimum Division: 0.01 RI
Accuracy: \0.01 RI

Size: 130*75*35mm

Weight: 420g

 

Product Name: Refractive index oil for gem refractometer RHG600, 900. Without the refractive index oil, the traditional gem refractometer can't test any gemstones!
Specification:
1.79 +/-0.01RI at 28'C  3ml/bottle(10g )

 

Product Name:
Digital Gem Refrectometer DGR800
Product Explains

  The Digital Gem Refractometer is a nice optical instrument which will give a reading of the refractive index of a clean, flat, well-polished facet to reproducibility of 0.007RI index units. With covering the full range from 1.30 to 2.99RI, It is an ideal instrument to identify the gem stones. The importance is that it can test the gem stones without requiring ANY messy, damaging contact oil.

Refractive Index of Some Gemstone:

Quartz: 1.544-1.558 RI

Topaz: 1.63-1.64 RI

Ruby: 1.74-1.78 RI

Cubic Zirconia (CZ): 2.15-2.18 RI

Diamond: 2.37-2.46 RI
Specification:
RI Test Range:1.30 to 2.99RI
Power Input: 9V Battery

Accuracy: +/-0.01 RI
Work Tempreature: 25-28ºC

Standard delivery:

Digital refractometer: 1pcs

Clean cloth: 1pcs

Standard stone sample (1.4875 RI): 1pcs

Standard stone sample (1.7552RI): 1pcs

For other Gem Instrument / Gemological Instrument, please click here gem / gemological instrument

OTR series handheld refractometer NTR series handheld refractometer Illumination handheld refractometer
     
Abbe refractometer Digital handheld Refractometer Digital bench-top Refractometer
     
Gem refractometer    

 

( If you need user manual, E-catalogue or picture without watermark for above meters, please ask for at: xiushunjie@163.com )