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  • DENSITY METER – PORTABLE DDM29
  • DDM 2909
  • DDM 2910
  • DDM 2911
  • DDM 2911 PLUS
  • Sample Loading Options

Density Meter DDM 2909

DDM 2909 Chemical, Petroleum Density Meter by Rudolph Research Analytical

An ideal Chemical or Petroleum Density Meter. The Rudolph DDM 2909 Density Meter features built-in Peltier Temperature Control of the Sample, Full Range Viscosity Correction, Reference Oscillator, and VideoViewTM for easy bubble detection, and is fully GMP/GLP Compliant. With the flexibility of Windows, the DDM 2909 is Network ready with Internet connectivity allowing remote access to Rudolph Research Analytical’s Service and Technical Support Team.
The 2909 comes complete with 20 Density concentration tables which include Brix, Alcohol, API, and many various laboratory reagents. An unlimited number of additional tables, polynomials, and formulas may be added.

Flexible Method Management

Factory installed density meter measurement methods allow for immediate selection of the correct method to match the most common applications.
Petroleum density meter with Viscosity Correction
For unique Density Meter measurement applications, create a sample method using Concentration Tables, Formulas, and Polynomials to match the density measurement methods used in your laboratory. Just a few of the many possible customized sample methods shown below:

  • Baumé of Hydrochloric Acid
  • Normality of Sulfuric Acid
  • The density of Gases and Aerosols
  • Drug-to-Propellant Ratio
  • Lead Content
  • ppm Gold in Acid
  • % Toluene in Heptane
  • Fat in Lubricant
  • Mole Fraction of Methanol
  • % HNO3
  • Monomer Solutions
  • Potassium Permanganate
  • Hydrogen Peroxide
  • Molar Solutions of EDTA
  • Testing Urine SG
  • Sweeteners
  • Sodium Hydroxide
Setting up your custom method on your Density Meter is as simple as filling out a few screens like the one below:Methods for Chemical, Petroleum Density Meter
Full Feature VideoView™

VideoView™  provides superior high resolution visual bubble detection within your samples with live on-screen video viewing.  Rudolph’s industry leading 10X magnification aids in identifying bubbles if present in the sample. Full view of the U-Tube makes the DDM 2909 and ideal chemical or petroleum Density Meter.
The video clarity, magnification, and resolution mean no more straining to see small difficult-to-detect air bubbles in your sample. Rudolph’s exclusive VideoView™  is protected under Patent #7,437,909.

Petroleum density meter Screen

Oscillating U-Tube with Viscosity Correction and Reference Oscillator

The DDM 2909 Density Meter’s oscillating U-tube with full range viscosity correction and reference oscillator allows long term calibration stability and measurement at all temperatures with a single calibration.

Computer Windows Based Flexibility
  • 32 gigabytes of internal Compact Flash Memory .
  • The DDM 2909 Density Meter is network ready and data may also be saved directly to your server or network.
  • Internet access is possible directly from the DDM 2909’s touch screen.
  • Disk Protection feature protects the operating system against malware infections in networked environments.
  • Rudolph’s Windows based navigation architecture is intuitive and most operators will never read the manual. Should you wish to reference the manual, it is stored right on the DDM 2909’s internal memory
  • Copy methods, transfer concentration tables, download data, etc., via the USB ports.
  • Five USB ports allow for quick and easy connection to a mouse, keyboard, printer, bar code scanner, or memory stick.

Screen for Chemical, Petroleum Density Meter

Chemical, Petroleum Density Meter – Standard Features

Versatile Communication Capability

The DDM 2909’s standard communication package includes:

  • Touch Screen User Interface
  • 5 USB ports (3 Rear, 2 Front)
  • 1 – Ethernet Cat 5 Port
  • 2 RS 232 Ports
  • Keyboard, Bar Code Scanner, Mouse, Network Capabilities, Memory Stick.

Allowing the capability to:

  • Connect Directly to Rudolph Service and Technical Support
  • Connect to any Windows® based Printer via USB or direct to the server via Windows® Print Library
  • Save measurement data locally and directly to your Network/Server.

cGMP/GLP Printing

Sample measurement reports are edited quickly and easily. Just import your logo to the DDM 2909 Density Meter and print your company’s customized “C of A” directly.

Standard Accessories

The DDM 2909 standard accessories include:

  • Quick Start Guide
  • Rinse/Sample Waste Container
  • Filling Nozzles
  • Luer Syringes
  • Connecting Fittings & Tubing
  • Manual
  • Drying Pump:  The built in Drying Pump is used to quickly dry the cell after rinsing and prior to the next measurement,reducing total sample analysis time.  The Air drying hose positioned intelligently so as not to become soiled with sample and rinse solvents.

20yearbanner

All Rudolph Instruments carry our exclusive 20 Commitment to service your instrument.

Rudolph Research Analytical offers a comprehensive range of Preventive Maintenance and Service Programs. Rudolph has demonstrated a commitment to its customers by keeping installed instruments operational, not only for 20 years, but in some cases for over 40 years. This long-term commitment to keeping our instruments running makes the cost of ownership, over the life of a Rudolph Instrument, one of the lowest in the laboratory market segment. At the date this document was published, there is no other laboratory instrument manufacturer guaranteeing service and technical support for 20 years. View the entire 20 Service Guarantee. 

Add automation to combine multiple instruments for:

Automated BRIX Tester
Automated pH Testing
Automated Color Testing
Automated Fragrance Testing
Automated Flavor Testing
Automated Syrup Testing
Maple Syrup Testing

DDM 2909 Density Meter Specifications
Accuracy Density: 0.0001 g/cm³ Temperature: 0.05°C
Repeatability (Standard Deviation) Density: 0.00002 g/cm³ Temperature: 0.02°C
Resolution (Standard) Density: 0.0001 g/cm³ Temperature: 0.01°C
Resolution (USR) Density: Up to 0.00001 g/cm³
Density Range 0 g/cm³ to 3 g/cm³ (32° F - 212° F )
Temperature Range Temperature: 0°C to 70°C (controlled via Peltier)
Pressure Range 0 to 10 bar (145 psi)
Viscosity Correction Yes, over the entire range
U-Tube Video Scanning & Magnification Three magnified video assisted views of the entire cell are available, in 2x, 6x and a 10x magnifications with video scanning. Images may be saved with results for subsequent review.
Automatic Bubble Detection Automatically warns operator of bubbles
Measurement Modes Continuous, Single, Multiple
Measurement Technique Mechanical Oscillating U-Tube Method
Minimum Sample Volume Approx 1mL (depending on the load option)
Wetted Materials Borosilicate glass, Teflon (PTFE, ECTFE)
Operating System Windows Embedded® write protected software safe from malware and viruses
Measurement Time Typically 30 - 40 seconds after thermal equilibration
Display Bright 10.4 inch diagonal TFT type LCD with wide viewing angle, anti-glare flat panel touch screen, 300 nits brightness, 800 x 600 pixels, chemical, scratch and spill resistant monitor, the industry’s largest, most flexible, and customizable user interface
Communication Interface 5 USB Ports, 2 RS232 Ports, 2 Ethernet Ports for Network Connection, 1 HDMI, Keyboard Bar Code Scanner, Mouse, Network Capabilities 5 - USB Ports (3 Rear - 2 Front) 2 - RS232 Ports Ethernet Port for Network Connection, Keyboard, Bar Code Scanner, Mouse, Network Capabilities
Remote Support Troubleshooting, Diagnostics, Software Updates available via the Internet
Internal Memory 32 GB Non-removable Compact Flash Allowing Storage of over 100,000 Measurements
Operating Dimensions 18.00" (L) 11.00" (W) 21.00" (H) 46cm (L) 28cm (W) 53cm (H)
Shipping Dimensions 24.5” (L) x 17.5” (W) x 22” (H) 62cm (L) x 44cm (W) x 56cm (H)
Operating Weight 53 lbs (24 kg.)
Power Supply 100 to 240 VAC; 50 to 60 Hz
Power Consumption 120 Watts at peak
Country of Manufacture and Design / Warranty United States of America ( U.S.A.) 3 Year US Warranty - 2 Year International *Warranty vary by country ( 1-3 years )

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  • Home
  • Products
    • Density Meters
      • DENSITY METER – PORTABLE DDM29
      • Density Meter DDM 2909
      • Density Meter DDM 2910
      • Density Meter DDM 2911
      • Density Meter DDM 2911 PLUS
      • Density Meter Sample Loading Options
      • Back
    • Refractometers
      • REFRACTOMETER – PORTABLE J27
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