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Analogue Refractometer - KERN ORA 1GG
The KERN ORA 1GG is a maintenance-free analog hand refractometer for the refractive index from 1,30 nD to 1,81 nD with 0,01 nD graduation. The wide range suits the identification of gemstones and jewellery. A calibration block, contact liquid, pipette, screwdriver, cleaning cloth and a leather pouch are included.
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Description
The KERN ORA 1GG determines the refractive index of gemstones and jewellery across a wide 1,30 nD to 1,81 nD range - a practical hand tool for jewellers and training. The 0,01 nD graduation allows a clear match of the material.
Benefits
- Wide refractive-index range 1,30 - 1,81 nD: covers common gemstones, graduation 0,01 nD.
- Designed for gemmology: includes a calibration block and contact liquid for placing stones.
- Maintenance-free and sturdy: handy build with a low-tolerance optical system and a clearly drawn scale.
- Fully equipped: calibration block, contact liquid, pipette, screwdriver, cleaning cloth and leather pouch supplied.
- Adjustable eyepiece: smooth diopter setting for different eyesight.
Applications
Jewellers, the jewellery industry and training for identifying gemstones by their refractive index.
Compliance and origin
EAN 4045761159891, customs tariff code 90275000, country of origin China.
Technical data
| Scale | refractive index (nD) |
|---|---|
| Measuring range | 1,30 nD - 1,81 nD |
| Graduation | 0,01 nD |
| Application | gemmology / gemstones |
| Net weight | 0,75 kg |
| Weight | 0.85 kg |
| Manufacturer | Kern |
| EAN | 4045761159891 |
| HS-Code | 90275000 |
| GPSR manufacturer information | KERN & SOHN GmbH, Ziegelei 1, DE-72336 Balingen-Frommern, www.kern-sohn.com |
| Condition of article | New |
| Article authenticity | Original product |
| Country of Manufacture | China |
Accessories
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