A.KRÜSS DS7700-SA and DS7800-SA Density Meters

Semi-Automatic Precision for Efficient Density Measurement

The A.KRÜSS DS7700-SA and DS7800-SA Density Meters are designed for precise and efficient density measurements of liquids, emulsions, and pastes. Utilizing proven oscillating U-tube technology, these instruments feature a semi-automatic sample supply system via a chemical-resistant peristaltic pump, enhancing both safety and productivity in laboratory environments.

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Why Choose the A.KRÜSS DS7700-SA and DS7800-SA?

✔ Semi-Automatic Sample Supply – Facilitates higher measurement volumes with reduced manual intervention, ideal for low to slightly viscous samples.

✔ Chemical-Resistant Components – Sample path constructed from borosilicate glass and PTFE, ensuring durability and compatibility with aggressive substances.

✔ Intuitive Touchscreen Interface – Equipped with a 7.0-inch capacitive touchscreen display for user-friendly operation.

✔ Efficient Temperature Control – Features internal Peltier temperature regulation for rapid and stable sample temperature management.

✔ Comprehensive Compliance – Meets standards such as GMP/GLP, 21 CFR Part 11, and various pharmacopoeias, ensuring suitability for regulated environments.

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Technical Specifications

Specification	DS7700-SA	DS7800-SA
Measurement Range	0–3 g/cm³	0–3 g/cm³
Measurement Accuracy	±0.001 g/cm³	±0.0001 g/cm³
Temperature Control Range	10–40 °C	10–40 °C
Temperature Accuracy	±0.01 °C	±0.01 °C
Resolution	0.001 g/cm³	0.0001 g/cm³
Minimum Sample Volume	0.9 ml	0.9 ml
Measurement Period	Approximately 3 seconds	Approximately 3 seconds
Display	7.0-inch touchscreen	7.0-inch touchscreen
Interfaces	USB, RS-232, Ethernet, LIMS	USB, RS-232, Ethernet, LIMS
Dimensions (W × H × D)	220 mm × 220 mm × 430 mm	220 mm × 220 mm × 430 mm
Weight	5.3 kg	5.3 kg

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Applications

These density meters are suitable for various industries, including:

• Pharmaceuticals: Ensuring the quality and consistency of liquid formulations.
• Chemicals: Accurate measurement of raw materials and finished products.
• Food and Beverages: Determining sugar content (Brix) and other concentration measurements.
• Petrochemicals: Assessing the density of oils and fuels for quality control.

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Conclusion

The A.KRÜSS DS7700-SA and DS7800-SA Density Meters offer high-precision measurements with the convenience of semi-automatic sample supply. Their robust construction, advanced features, and compliance with industry standards make them an excellent choice for laboratories seeking reliable and versatile density measurement solutions.

A.KRÜSS DS7700-4, DS7800-4, DS7700-5, and DS7800-5 Density Meters

Fully Automatic Precision for High-Throughput Density Measurement

The A.KRÜSS DS7700-4, DS7800-4, DS7700-5, and DS7800-5 Density Meters are designed for fully automatic, high-precision density measurements of liquids, emulsions, and pastes. Equipped with oscillating U-tube technology and an integrated autosampler system, these instruments allow unattended processing of up to 89 samples, maximizing efficiency for high-throughput laboratories.

With automated sample filling, measurement, cleaning, and drying, these models minimize manual effort, ensuring consistent and reliable results while meeting industry standards such as GMP/GLP and 21 CFR Part 11.

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Why Choose the A.KRÜSS DS7700/DS7800 Series with Autosampler?

✔ Fully Automatic Sample Handling – Automates the entire process from sample supply to cleaning and drying, reducing manual workload
✔ High Sample Throughput – Processes up to 89 samples in a single run, ideal for high-demand labs
✔ Chemical-Resistant Construction – Sample path components made of borosilicate glass and PTFE for durability and chemical resistance
✔ Intuitive 7.0-inch Touchscreen Interface – User-friendly display for efficient operation and method development
✔ Comprehensive Compliance – Meets GMP/GLP, 21 CFR Part 11, and various pharmacopoeia standards for regulated environments

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Key Differences: Set 4 vs. Set 5

Feature	Set 4 (DS7700-4, DS7800-4)	Set 5 (DS7700-5, DS7800-5)
Sample Path Materials	Tygon tubing, Polypropylene (PP)	PTFE tubing, PEEK components
Chemical Compatibility	Suitable for aqueous solutions and non-aggressive samples	Designed for aggressive chemicals and organic solvents
Best for Applications	Routine laboratory testing of standard liquid samples	High-precision testing of corrosive, reactive, or solvent-based samples

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Technical Specifications

Measurement & Heating

Specification	DS7700-4 / DS7700-5	DS7800-4 / DS7800-5
Measurement Range	0–3 g/cm³	0–3 g/cm³
Measurement Accuracy	±0.001 g/cm³	±0.0001 g/cm³
Temperature Control Range	10–40 °C	10–40 °C
Temperature Accuracy	±0.01 °C	±0.01 °C
Resolution	0.001 g/cm³	0.0001 g/cm³
Minimum Sample Volume	0.9 ml	0.9 ml
Measurement Time	Approx. 3 seconds	Approx. 3 seconds
Sample Capacity	Up to 89 samples per run	Up to 89 samples per run

Display & Connectivity

Feature	Specification
Display	7.0-inch capacitive touchscreen
Interfaces	USB, RS-232, Ethernet, LIMS connectivity

Dimensions & Power

Feature	Specification
Dimensions (W × H × D)	220 mm × 220 mm × 430 mm
Weight	5.3 kg
Power Supply	90–264 V

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Applications

The A.KRÜSS DS7700/DS7800 series is a perfect solution for a wide range of industries, including:

✅ Pharmaceuticals – Ensuring batch consistency and regulatory compliance
✅ Chemical Industry – Precise density analysis for raw materials and finished products
✅ Food & Beverage – Quality control for sugar content (Brix) and ingredient ratios
✅ Petrochemicals – Measuring fuel, oil, and lubricants for quality assurance

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Conclusion

The A.KRÜSS DS7700-4, DS7800-4, DS7700-5, and DS7800-5 Density Meters are the ultimate fully automated density measurement solutions, delivering high accuracy, reliability, and efficiency. Whether analyzing aqueous samples or aggressive solvents, these models offer the perfect combination of precision, automation, and flexibility.

🔹 Upgrade your laboratory’s workflow with the A.KRÜSS DS7700/DS7800 Series – the ultimate solution for fully automatic density measurement! 🚀