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Gem refractometer FGR-002J
¥2,280.00
Refractive Index is one of the most important optical parameters used to identify and authenticate polished precious and semi-precious gemstones. Gem refractometer is the most important professional tool for identifying gem stones.It can test the gem refractive index easy,fast,and without spoilage,it can also determine other optical characteristics of gemstones..
〉The narrow and tall (CZ) test prism can measure inlaid gemstones
〉Stainless steel table,easy to clean
〉Scale range:1.35-1.85
〉Acurracy: ≦±0.002, the scale of finer to 0.005
〉Internally installed the monochromatic light (wavelength:589.5nm)
〉Equipped with a polarizer and 2ml refractive index Liquid(1.785±0.005) with glass bottle
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Description
Gemological refractometer
Model:FGR-002J
Specifications:
The narrow and tall cubic zirconia (CZ) test prism can measure inlaid gemstones, which is especially suitable for jewelry inspection stations.
Scale range:1.35-1.85
Acurracy: ≦±002
Stainless steel table,corrosion-resistant,easy to clean
Professional optical design,shadow edge is ultra-straight and clear,easy to read; and Internally installed the monochromatic light (wavelength:589.5nm)
There are two ways of inputing the voltage:2 xAAA batteries and DC3V 50mA direct current suply(AC100—240V).
2ml refractive index Liquid(1.78±005) with glass bottle
★Equipped with a polarizer;
★Eyepiece: 32mm in diameter, with magnifying function;
Test conditions: Temperature: room temperature 5-35°C, humidity: ≤75%, no acid, alkali and other corrosive gases in the room;
Size: 140mm×42mm×95mm;
Prism size: 14mm×3mm;
Metal table size: 37mm×68mm;
Weight: 390g;
Application
A lightweight measuring instrument used by jewellers and traders of gemstones to measure polished stones over a refractive index range of 1.30 to 1.81 RI.
This instrument can also be used to identify whether a particular stone is Isotropic or Anistropic (uniaxial or biaxial).
Differences of all our 5 Gem refractometer Models
| Model | Color | Accuracy | Table Material | Finer Scale | Built in battery | For Mounted Stones | Two level Brightness |
| FGR-003 | White | 0.003 | Aluminum alloy | 1.40,1.50,… | / | / | / |
| FGR-003A(Portable) | Black | 0.003 | Aluminum alloy | 1.40,1.50,… | Yes | / | / |
| FGR-002 | White | 0.002 | Stainless steel | 1.40,1.50,… | / | / | / |
| FGR-002J | White | 0.002 | Stainless steel | 1.40,1.50,… | / | Yes | / |
| FGR-002A | White | 0.002 | Stainless steel | 1.40,1.45,1.50,1.55,… | / | / | Yes |
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+86 13424293827
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Office Address:
Room 1404, Block 3/D, Tianan Cloud Park,Bantian Street,Longgang District,Shenzhen,Guangdong,China
Factory Address:
4th Floor, Building B, Kelixing Industrial Park, Xiwang Industrial Zone, Tiantangwei, Fenggang Town, Dongguan City
