DDM 2911 PLUS – Automatic Density Meter

The DDM 2911 PLUS from Rudolph Research Analytical is a high-precision, fully automatic density meter tailored for laboratories requiring the utmost in accuracy, regulatory compliance, and sample versatility. Utilizing the mechanical oscillating U-tube method with integrated viscosity correction and reference oscillator, this device ensures consistent and stable measurements across the full temperature range with a single calibration.

Key Features

Accuracy: Up to 0.000010 g/cm³, temperature control to 0.01 °C
VideoView®: Patented high-resolution video viewing with 2x, 6x, and 10x magnification for air bubble detection and cleanliness verification
Measurement Time: 30–40 seconds after thermal stabilization
Sample Volume: Approx. 1 mL
Touchscreen: Large 10.4” anti-glare TFT display with intuitive Windows® Embedded OS
Storage: 32 GB internal memory, storing over 100,000 measurements
Communication: 5 USB, 2 RS232, 2 Ethernet, HDMI – fully network capable
GMP/GLP: Full 21 CFR Part 11 compliance, audit trail, electronic signatures
Automated bubble detection and multiple measurement modes (continuous, single, multiple)

Applications

Alcohol, Beverage & Wine: Approved by US TTB, accurate ethanol measurement (±0.01%), °Brix, Plato, Proof
Pharmaceuticals: Multi-point measurement, GLP/GMP-compliant, USP <841> compatible
Petroleum & Chemicals: API gravity, specific gravity, ASTM and ISO compliance
Food, Flavor & Fragrance: Raw material inspection, batch consistency, blending validation

Automation Options

The DDM 2911 PLUS integrates seamlessly with Rudolph’s AutoFlex® automation systems (R837, R835), allowing for:

Fully automated sample loading, rinsing, and drying
High throughput with customizable racks and vials
Peristaltic pump or syringe loading (manual or LoadAssist™)

Ideal For

Labs requiring high-precision density analysis with traceability and compliance
High-throughput environments in pharmaceutical, petrochemical, beverage, and flavor industries
Users needing integration with LIMS, SAP, or networked storage

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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