Abbe refracto meter with a digital thermometer

1. Applications: 

• Determination of refractive index of liquids, solids, gels, and pastes
• Concentration measurement of solutions (e.g., sugar, salt, acids, polymers)
• Purity testing and quality control in manufacturing
• Identification of substances based on RI
• Monitoring of process streams in chemical industry
• Research & development in materials science
• Educational and training purposes

2. Compliance Standards
Typical instruments comply with international standards such as:

• ASTM D1218 – Standard Test Method for Refractive Index of Liquid Hydrocarbon Mixtures
• ASTM E1342 – Standard Practice for Refractive Index Measurements
• ISO 3421 – Liquid Hydrocarbons — Determination of Refractive Index
• IP 219 / IP 366 – Refractive Index Methods in Petroleum Analysis
• DIN 51423 – Determination of Refractive Index
• GLP/GMP traceability with calibration certificates (optional)

3. Product Description : An Abbe Refractometer with Digital Thermometer is a precision laboratory optical instrument used to measure the refractive index (RI) or concentration of transparent and translucent liquids and solids. The digital thermometer provides accurate sample temperature readings, enabling direct temperature compensation and high-precision measurements in accordance with standard methods. 
This instrument features a high-precision optical system with a built-in digital temperature sensor, easy sample application, and a large viewing field for comfortable operation. It is suitable for research, quality control, and routine analysis in pharmaceuticals, petrochemicals, chemicals, food & beverage, cosmetics, environmental testing, and educational labs.

4. Technical Specifications

5. Apparatus Supplied

Standard equipment included with the refractometer may include:

• Abbe Refractometer main unit with integrated digital thermometer
• Prism assembly & cover plate
• Calibration standards (e.g., certified liquids)
• Glass/Optical cleaning tissues
• Sample pipettes / droppers
• Power adapter / cable
• Operation manual
• Warranty card / Quality certificate

6. Optional Accessories

The following accessories may be available (model-dependent):

1. External digital temperature probe
2. USB/RS232 data output cable
3. Software for data logging & control
4. Reference liquid kit with certificate
5. Protective cover / dust cover
6. Solid sample cell & adapters
7. Calibration tools & reference standards

7. Common Capacities Available

(Depending on model series; listed as typical measurement scales)

• Refractive Index: 1.3000 – 1.7000 nD
• Brix: 0 – 85 %
• API, Baume, Molecular weight options (with conversion tables)
• Custom scales for specific industries

8. Dimensions and Weight (Approximate)