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Gemological Handheld Refractometer 1.30 – 1.81 Soif

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High-precision handheld refractometer for gemological analysis, measuring refractive indices from 1.30 to 1.81 nD with ±0.0002 accuracy.

Measurement range: 1.30 – 1.81 nD
High precision: ±0.0002 nD accuracy
Compact handheld design: 26 × 40 × 125 mm
Lightweight at 175 g
Ideal for precious stone and mineral identification
Clear measurement scale with diopter adjustment
Zero calibration capability

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2-3 Gün

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Daha fazla detay

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Daha fazla detay

The Gemological Handheld Refractometer is a high-precision optical instrument used in gemology to measure refractive indices between 1.30 – 1.81 nD. Specifically designed for the analysis of precious stones and minerals, this refractometer provides accurate optical property measurements, making it an essential tool for verifying the chemical and optical characteristics of gemstones and mineral specimens.

Technical Specifications

Measurement Range	1.30 – 1.81 nD
Accuracy	±0.0002 nD
Dimensions	26 × 40 × 125 mm
Net Weight	175 g

Applications

Gemstone identification and authentication
Mineral analysis and classification
Refractive index determination for diamonds, rubies, sapphires, and other precious stones
Quality control in jewelry laboratories
Educational demonstrations in gemology courses
Field testing for gemological surveys

Frequently Asked Questions

What is the reference temperature for accurate measurements?

The reference temperature is 20°C. When measuring at different temperatures, consult the temperature correction table for accurate results.

How do I calibrate the refractometer?

Open the cover and clean the prism surface with soft cotton cloth. Apply 1-2 drops of distilled water and close the cover. Verify that the black separation boundary aligns with the zero line. If necessary, adjust using the zero adjustment screw.

What liquids can I use for measurement?

Use appropriate gemological reference liquids or contact fluid formulated for refractometry. Do not use water for actual measurements; use only for zero calibration.

How do I maintain the optical components?

Never wash the device with water. Clean optical surfaces gently with soft cotton cloth only. Avoid hard objects and abrasive materials.

What accessories are included?

The refractometer includes an absorption tube and an adjustment key for calibration and maintenance.