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

Density Meter DDM 2911

Laboratory Density Meter DDM 2911 by Rudolph Research Analytical

The DDM 2911 Laboratory Density Meter is a perfect choice for a pharmaceutical density meter or any lab where high accuracy is required. The 2911 is one the most capable instruments in the Rudolph Density Meter product line offering a wide measurement range, high accuracy, and the on-board range methods and electronic data tracking required in the most demanding laboratories in the world. The DDM 2911 is recommended for high level work in the Pharmaceutical, Chemical, Beverage, Fragrance, and Petroleum industries.   Designed for the most demanding cGLP/GMP Laboratories, the DDM 2911 Density Meter offers density accuracy to 0.00005 g/cm3. If you work in one of the following industries and need the highest level of accuracy the DDM2911 Density Meter is a perfect choice for your lab.
Laboratory-Pharmaceutical Density Meter

DENSITY METERS FOR THE PETROLEUM INDUSTRY

  • Measure API Values in accordance with ASTM D1250, ASTM D4052, ASTM 4806, ASTM D5002, ASTM 5931, ISO 12185, IP 365, DIN 51757
  • QC incoming raw materials
  • Research new products and additives
  • Withstands harsh and heavy use environments
  • Calibrate using petroleum standards

DENSITY METERS FOR THE CHEMICAL INDUSTRY

  • Measure in units of Kg/m3, g/cm3, g/mL, pounds/gallon, specific gravity, Baumé and more.
  • Determine concentration in: %, molarity, normality, mole fraction, ppm, and more.
  • Check batch consistency and ensure proper blending ratios.
  • Wetted materials compatible with the most aggressive chemicals.

21CFR Part 11 COMPLIANT DENSITY METER FOR PHARMA LABS

  • Capable of 2, 3, 4 or more multiple measurements with standard deviation, mean, min and max reading for true cGLP/GMP compliance.
  • Complete IQ/OQ/PQ documentation.
  • Checking of raw materials and product release.
  • 21CFR Part 11 Compliance; Electronic Signature and Secure Data Storage.
  • Compliant with USP 29<841>, JP, BP and EP.

DENSITY METERS FOR THE BEVERAGE INDUSTRY

  • Measure both alcoholic and nonalcoholic beverages with easy bubble detection using VideoView™.
  • Direct and accurate means of °Brix determination, °Plato, °Balling, % Solids
  • Use apparent density function for proper filling volume monitoring.

Flexible Method Management

Factory installed density meter measurement methods allow for immediate selection of the correct method to match the most common applications.
21CFR Part 11 method screen
For unique Laboratory Density Meter measurement applications, create a sample method using an unlimited number of 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:

  • Concentration D2O – Heavy Water.
  • Baumé of Hydrochloric Acid.
  • Normality of Sulfuric Acid.
  • 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:Measurement Methods Screen

Density Meters from Rudolph Research offer a full view of the U-Tube for effective Bubble Detection

No more straining to see small difficult-to-detect air bubbles in your sample with live on-screen viewing of the entire U-Tube. On-screen bubble detection is made possible utilizing Rudolph’s exclusive camera that allows a 2X, 6X and 10X magnified view of the entire U-Tube. No other instrument manufacturer offers this technology or helps the user avoid error causing air bubbles like Rudolph Research.

U-Tube View for Laboratory Density Meter

The Rudolph 2911 Density Meter offers 21CFR Part 11 Instrument Level Compliance

The perfect pharmaceutical density meter, the DDM 2911’s 21CFR Part 11 software module is easily enabled through the user friendly touch screen. This module gives you full compliance with:

  • Electronic Signature
  • Access Levels
  • Internal write protected storage
  • Unique passwords
  • Write protected documents sent directly to server

21 CFR Part 11 Pharmaceutical Density Meter Screen

Oscillating U-Tube with Viscosity Correction and Reference Oscillator

(patent # 7,735,353)
The DDM 2911 Density Meter’s oscillating U-tube with full range viscosity correction and reference oscillator allows long term calibration stability and measurements at all temperatures with a single calibration.

cGMP/GLP Calibration

  • Calibrate the DDM 2911 with 2 or 3 NIST Traceable Standards. Calibrating with merely air and water appears inconsistent with cGMP/GLP compliance regulations. (see H&D Fitzgerald’s recommendations at www.density.co.uk )
  • Can print out complete method configuration, communication settings, as well as calibration verification and calibration adjustment data/history.
  • Measured values can be shown continuously as temperature stability is being reached. At the discretion of the user, measured values will only be displayed once the final answer is reached and completely stable.
  • Unlimited number of customized calibration adjustments and calibration verifications possible.
  • Complete History of Calibration Adjustments and Verifications are available to View, Print, and/or Export.
  • Possible to set calendar reminders as to when Calibrations are due.

Air-Water Calibration Screen

Computer Windows Based Flexibility

  • 32 gigabytes of internal memory allow almost unlimited capacity for saving measurement data. The DDM 2911 Density Meter is network ready and data may also be saved directly to your server or to any directory desired.
  • Internet access is possible directly from the DDM 2911’s touch screen.
  • Disk Protection feature protects the operating system against malware infections in networked environments.
  • Windows based navigation architecture is so intuitive that most operators will never read the manual. But should you wish to reference the manual, it is stored right on the DDM 2911’s internal memory
  • Copy methods, transfer concentration tables, download data, etc., via the USB ports which are conveniently located on front of unit.
  • Five total USB ports allow for quick and easy connection to a mouse, keyboard, printer, bar code scanner, or memory stick.

Density Meter Data Export Screen

Pharmaceutical Lab Density Meter with Versatile Communication Capability

The DDM 2911’s standard communication package includes:

  • Ethernet Port for Network Cable Connection
  • 5 USB ports
  • 2 RS 232 Ports

Allowing capability to:

  • Export measurement results to a thumb drive, store it locally on the C:\ drive, or easily send data to any external PC, LIMS, etc.
  • Print measurement results to a local or networked printer. Use any printer; just load the proper printer driver as you would with any PC.
  • Save measurement data direct to your Network/Server

Density Meter USB - Data Ports

cGMP/GLP Printing for your is a must for your Pharmaceutical Density Meter

Sample measurement reports are edited quickly and easily. Just import your logo to the DDM 2911 Density Meter. You may also print your company’s customized “C of A” directly from the Density Meter.
Pharmaceutical Density Meter C of A

NIST Traceable Calibration Standards

Rudolph knows how important it is to calibrate with Traceable Standards. Therefore, we include either a NIST or UKAS standard in the accessories provided with all of our density meters. The DDM 2911 standard accessories include:

  • Quick Start Guide
  • Rinse/Sample Waste Container
  • Filling Nozzles
  • Traceable Standards
  • IQOQPQ Documentation
  • Luer Syringes
  • Connecting Fittings & Tubing
  • Manual

Density Meter - Certificate of Analysis

Add Laboratory Automation to your Density Meter and other test meters.

  • Rudolph’s AutoSampler can be loaded with up to 240 samples
  • Combine density and specific gravity measurements with simultaneous measurements of:
    • Refractive Index
    • Color
    • pH
    • Optical Rotation / Specific Rotation
  • Up to three different rinse solvents are available for use; fully programmable
  • Two sample loading modes; pressurized and suction; for optimized sample transfer and measurement
  • Customers’ unique sample bottles may be used to eliminate the need to transfer samples into special-sized test tubes.
  • Emergency samples are measured at any time without stopping the AutoSampler or moving sample vials.
Watch a video about the new Rudolph Research DDM 2911 utilizing an AutoSampler


Trouble viewing this video? Click Here
Laboratory Density Meter with Automation
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 other systems with your DDM 2911 for:

Automated Brix Measurement
Automated Color Measurement
Automated Ph Measurement
Automated Refractive Index Measurement

DDM 2911 Density Meter Specifications
Accuracy Density: 0.00005 g/cm³ Temperature: 0.02°C
Repeatability (Standard Deviation) Density: 0.000005 g/cm³ Temperature: 0.01°C
Resolution (Standard) Density: 0.00001 g/cm³ Temperature: 0.01°C
Resolution (USR) Density: Up to 0.000001 g/cm³
Density Range 0 g/cm³ to 3 g/cm³ (32° F - 212° F )
Temperature Range (Controlled via Peltier) 0°C - 100°C
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
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 18.36” (L) x 11.80” (W) x 13.90” (H) 46.61 cm (L) x 29.97 cm (W) x 35.30 cm (H)
Operating Weight 53 lbs (24 kg.)
Shipping Dimensions 24.5” (L) x 17.5” (W) x 22” (H) 62cm (L) x 44cm (W) x 56cm (H)
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
      • J47
      • J57 VT
      • J157 PLUS
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      • J357
      • J457
      • Contact Lens Refractometers
      • Back
    • Polarimeters
      • Autopol I
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      • Autopol III
      • Autopol IV
      • Autopol V
      • Autopol V PLUS
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      • Back
    • Saccharimeters
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      • Digital Saccharimeter Autopol 880 & 880T
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      • Saccharimeter Sample Cells
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      • Back
    • Automation
      • Autoflex® R817
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      • AutoFlex® R837
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