DDM 2911 – Automatic Density Meter

The DDM 2911 from Rudolph Research Analytical is a high-precision, fully automatic digital density meter designed for laboratories that demand reliable results with robust performance. Featuring the mechanical oscillating U-tube method and a reference oscillator, it achieves consistent measurements without requiring frequent recalibration.

Key Features

Accuracy: ±0.00005 g/cm³; Temperature control to ±0.02 °C
VideoView®: High-resolution video for air bubble detection and cleanliness confirmation
Measurement Time: Approx. 30 seconds post thermal equilibrium
Sample Volume: Typically 1 mL
Touchscreen: Large, user-friendly color display with intuitive interface
Storage & Data Export: Save thousands of results with export via USB or network
Compliance: Supports GLP/GMP and 21 CFR Part 11 (optional)

Applications

Alcohol and Beverage: Measure alcohol content, °Brix, Plato, Proof
Pharmaceutical: Quality control in compliance with USP <841>
Petroleum & Chemicals: Determine API gravity, specific gravity, and blend ratios
Food and Fragrance: Monitor density in complex formulations and raw materials

Automation Options

The DDM 2911 supports Rudolph’s automation platforms for sample delivery and cleaning, making it suitable for medium-throughput applications:

Compatible with AutoFlex® R837 automation
LoadAssist™ for guided manual sample introduction
Peristaltic pump or syringe options

Ideal For

Labs requiring accurate density measurements with intuitive operation
QA/QC labs in beverage, pharma, and petrochemical industries
Users transitioning from manual to automated density testing

Contact Us

Have a question or interested in a product? Feel free to reach out via the form, send us an email, or call us at +41 44 986 29 29 during business hours.

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