DDM Density Meters

The DDM Line of benchtop Density Meters are ideal for both research and production work across many industries including Chemical, Petroleum, Pharmaceutical, Petro-Chemical, and Beverage

Product Category: Density Measurement

Industry: Analytical and Environmental Labs, Biodiesel/Petrochemical, Food, Dairy and Wine, General Laboratory, Pharmaceutical, Personal Care and Natural Products

Supplier: Rudolph Research Analytical

Description

Density Meters for Chemical, Petroleum, Pharmaceutical, Petro-Chemical, and Beverage Labs

The Rudolph Density Meter product lines are ideal for both research and production work across many industries including Chemical, Petroleum, Pharmaceutical, Petro-Chemical, and Beverage. Having great experience serving these markets for decades Rudolph has incorporated the features you need for both production and research applications.

Density Meters: Watch a video about the Rudolph DDM Line of Automatic Density Meters

Trouble viewing this video? Click Here

DENSITY METERS – PETROLEUM LABORATORY

Measure API Values in accordance with ASTM D1250, ASTM D4052, ASTM D5002, DIN 51757, ISO 12185,
ASTM D4806, IP 365, and ASTM D5931
QC incoming raw materials
Research new products and additives
Withstands harsh and heavy use environments
Calibrate using petroleum standards

AUTOMATIC DENSITY METERS – CHEMICAL INDUSTRY

Measure in units of Kg/m³, g/cm³, g/ml, pounds/gallon, specific gravity, Baumé
Determine concentration in: %, molarity, normality, mole fraction, ppm,
Check batch consistency and ensure proper blending rations
All wetted materials are compatible with the most aggressive chemicals.
Many additional measurement and method options.

HIGH ACCURACY DENSITY METERS – PHARMACEUTICAL LABORATORIES

Capable of 3, 5 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
21CFR11 Compliance; Electronic Signature and Secure Data Storage
Compliant with USP <8417> ISO 17025, JP, BP, and EP.

DENSITY METERS – BEVERAGE APPLICATIONS

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

How to Choose A Density Meter for your Application.

Selecting a Density Meter model for chemical, pharmaceutical, petroleum, cosmetics, essential oils, petro-chemical, education, and university applications. The Rudolph DDM2910 and DDM2911 offer a wide range of sample handling, sample loading, method management, measurement, and measurement fail-safe options. Rudolph Density Meters address each aspect of the density measurement process to ease and speed sample handling, manage measurement methods, monitor the density meter’s testing environment, and aid the operator with clear controls and a crisp digital display. The Rudolph Advantage in Density Meters includes:

Density Meters with On-board Flexible Method Management

Factory installed density meter measurement methods allow for immediate selection of the correct method to match the most common applications.
For unique density 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.
Setting up your custom method on your Density Meter is as simple as filling out a few screens.

Density Meters with Wider Measurement Range:

The Rudolph DDM2910 and DDM2911 Density Meters can measure samples from 0 degree C to 90 degree C offer temperature control to one of the widest in the industry giving you the correct temperature for your measurement application.

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.

Rudolph Research offers Density Meters with 21CFR Part 11 Instrument Level Compliance

The DDM2910 and DDM2911’s 21CFR Part 11 software module is easily enabled through the user friendly, digital touch screen. This module gives you full compliance with:

Oscillating U-Tube with Viscosity Correction and Reference Oscillator

(patent pending)
The Rudolph Research Density Meter’s oscillating U-tube with full range viscosity correction and reference oscillator (patent pending) allows long term calibration stability and measurement at all temperatures with a single calibration.

cGMP/GLP Calibration

Calibrate the DDM2910 and DDM2911 with 2 or 3 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 or, 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.

Computer Windows Based Flexibility

32 gigabytes of internal memory allow almost unlimited capacity for saving measurement data. The DDM 2911 and DDM 2910 Density Meters are network ready and data may also be saved directly to your server or to any directory desired.
Internet access is possible directly from the DDM2910 or DDM2911 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 and DDM 2910’s internal memory
Copy methods, transfer concentration tables, download data, etc., via one of the 2 of 5 total USB ports on front of unit.
Three additional rear USB ports allow for quick and easy connection to a mouse, keyboard, printer, bar code scanner, or memory stick.

Versatile Communication Capability

The DDM2910 and DDM2911 standard communication package includes:

Cat 5 Network Cable Connection
5 USB ports
2 RS 232 Ports

cGMP/GLP Printing

Sample measurement reports are edited quickly and easily. Just import templates from Word® or Excel® to the DDM2910 and DDM2911 Density Meter and print your company’s customized “C of A” directly.

Traceable Calibration Standards

Rudolph knows how important it is to calibrate with Traceable Standards and therefore, we include either a NIST or UKAS standard in the accessories provided with both our DDM2910 and DDM2911 Density Meters.

Rudolph offers a wide range of sample handling option

Rudolph DDM with AutoFill™ was developed by listening to customers who wanted an easier method of sample loading that they could decant right from their existing containers. Samples are easily poured right into the AutoFill™ sample well without having to come in contact with the sample; simply pour it in. From there the lid is closed and the sample is advanced to the U-Tube with the push of a button on the DDM touch screen. To clean, open the lid and pour in the solvent of your choice. Close the sample well lid again, press a button and the solvent is flushed through the U-Tube and air drying is automatically started.
Who Should Use this System?
Users who want to make many measurements each day and want an easy to load Density Meter with an equally easy cleaning routine.
Laboratories who do not want to come in contact with caustic acids, or bases.

Density Meters easily integrate with Laboratory Automation Flexibility

Rudolph Research knows you need to save time and thus money performing routine measurement tasks. Using a Rudolph Density Meter as the heart of the system we can combine multiple instruments to produce measurement routines on up to 240 sample. We can design a custom configuration just for your application.
With decades of worldwide laboratory instrument design and sale Rudolph Research knows you application requirements and can help you select the right instrument including the right Density Meter from our innovative line of products.
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.

Videos

Density Meters: Watch a video about the latest Rudolph Density Meters

https://youtu.be/v-6AgH0rYkk

See the DDM Density Meters in action with Rudolph’s Patented VideoView™ Bubble Detection System

https://youtu.be/PxpXWRN0D6M

Whitepapers

Density Meter White Papers

Brochures

Product Tech Bulletin DDM2910

Product Tech Bulletin DDM 2911

Product Tech Bulletin DDM2911 Plus

Model comparison

Digital Density Meter Model DDM 2910 by Rudolph Research

Automatic Digital Density Meters (Densitometer) to meet the requirements of your laboratory application in Chemical, Petroleum, Pharmaceutical, and Beverage industries. Rudolph Research designed the DDM 2910 Digital Density Meter to meet the needs of the following industries and measurement needs in mind:

PETROLEUM INDUSTRY

Measure API Values in accordance with ASTM D1250, ASTM D4052, ASTM D5002, DIN 51757, ISO 12185, ASTM D4806,IP 365, and ASTM D5931
QC incoming raw materials
Research new products and additives
Withstands harsh and heavy use environments
Calibrate using petroleum standards

CHEMICAL INDUSTRY LABS

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.

PHARMACEUTICAL LABS

Capable of multiple measurements with standard deviation, 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

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

DDM 2911 Density Meter by Rudolph Research Analytical

The Rudolph DDM 2911 Automatic Density Meter is one of our most capable instruments offering a wide measurement range, highest accuracy, and the on-board range methods and electronic data tracking required in the most demanding laboratories in the world. The DDM 2911 is highly 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 0.00001 g/cm³. If you work in one of the following industries and need the highest level of accuracy the DDM2911 is a perfect choice for your laboratory.

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.

DENSITY METERS FOR THE PHARMACEUTICAL INDUSTRY

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

DDM 2911 PLUS Density Meter by Rudolph Research Analytical

The Rudolph DDM 2911 PLUS, Automatic Density Meter is our most capable instrument offering our widest measurement range, highest accuracy, and the on-board range methods and electronic data tracking required in the most demanding laboratories in the world. The DDM 2911 PLUS is highly recommended for high level work in the Alcohol Beverage, Pharmaceutical, Chemical, and Petroleum industries. Designed for the most demanding cGLP/GMP Laboratories the DDM 2911 PLUS Density Meter offers density accuracy to 0.00001 g/cm³, Resolution: Density 0.000001 g/cm³, and Temperature Selectable to: 0.001°C

If you work in one of the following industries and need the highest level of accuracy the DDM2911 PLUS is a perfect choice for your laboratory.

Density Meters for the Alcoholic Beverage Industry

The Bureau of Alcohol, Tobacco, Firearms, And Explosives (ATF) requires 0.02% Ethanol accuracy in wine, beer, and spirits for the purposes of taxation and Labeling.
The DDM 2911 PLUS offers 0.01% accuracy for Ethanol testing.
Measure both alcoholic and nonalcoholic beverages with easy bubble detection using VideoView™
Direct and accurate means of °Brix determination, °Plato, °Balling, Proof, % Solids

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.

DENSITY METERS FOR THE PHARMACEUTICAL INDUSTRY

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

Accessories

Vertical Load – A Rudolph Exclusive Feature

• Helps with sample injection is done against gravity. Suitable for left and right handed operators as opposed to manual horizontal injection. Plunger is easier to push with all samples and there is more control over the syringe than with Horizontal Load.

• Gives the ability to apply more pressure to the syringe when injecting viscous samples without harming operators.

• Much easier cleaning. When a measurement is complete and the syringe is removed, gravity will force the sample down and into the waste jar. As opposed to the traditional horizontal load, if the waste tubing was bent, the sample would pour backwards and spill out on the table.

• Preserves the nozzles and nozzle bodies much better since there will not be added pressure from pushing on them when loading a sample. All the pressure will be on the top plate, thus saving in future maintenance costs.

LoadAssit^®

• Great option as there is two ways to inject a sample: by manual injection or having the PeriPump pull the syringe for you.

• Ideal for pulling the rinse solutions automatically into the system thus making the rinsing part of the operation much easier.

• Pressure mode available for carbonated samples.

• Has no added benefit to measurement performance over the Horizontal Load for an experienced user. However it benefits customers that have multiple inexperienced users as the PeriPump will automatically inject the sample the same way every time.

• No change in instrument’s performance when compared to HL or VL option.

MM Peri Pump

• Most versatile option. Allows three ways to inject the sample: through the supplied needle, manual injection or having the PeriPump (LA).

• An added benefit is the cleaning process, or possible lack of cleaning and going right into your next sample which will decrease operational times.

• Yields same results as a VL or HL or LA for all non-viscous types of samples, so no change in performance occurs.

Syringe Injection

Samples can be easily loaded in the DDM series Density Meter by directly injecting your sample into the inlet port of the DDM. You can watch the sample progress through the U-Tube and monitor for bubbles. Need a closer look? View at 2X, 6X or 10X magnification. When your measurement is complete simply flush the U-Tube with your choice of solvent and use the convenient air tube to dry the U-Tube.

Who Should Use this System?

Laboratories who make only a few measurements per day. Users who wish to use very small amounts of sample – Only 1ml of sample is required.

Peristaltic Pump

Combining a Peristaltic Pump with a Rudolph Density Meter makes sample loading and cleaning faster and more convenient. A Peristaltic Pump draws the sample into the Density Meter and could also load a Refractometer. The user drops a tube into the sample and starts the Peri Pump from the DDM display. The Peristaltic Pump draws the sample through one or two instruments and then measures. The measured sample is displaced to waste by the following sample.

Who Should Use this System?

Laboratories working with low viscosity samples such as beverages.

Users who don’t mind utilizing 50 ml of sample for a measurement. A large amount of sample is needed to ensure all of the previous sample is displaced with the new sample.

AutoFlex R837 Automation System

The DDM Series of density meters can be combined with various Rudolph Automation Systems and Sample Handling Accessories.
Available are Peristaltic Pumping, Heated Sampler, the ECS (Easy Clean System), and the Rudolph R837 AutoFlex Sampler.

The Rudolph Research R837 AutoFlex is perfect for high throughput laboratories
looking to increase productivity.

The R837 AutoFlex Sampler Facilitates:

• Customizable bottle size, Test Tube size, Boston Rounds:1oz, ½ oz, virtually any size

• Customizable Rack configurations: heated and unheated on the same carousel
• Automated sample introduction

• Flexible Method Selection: Suction mode, Pressure mode, Rinse and Dry Duration

• Programmable cleaning and drying

• Automatic solvent and waste level detection

• System Configuration minimal sample volume: 1.5 mL

• A heated interface is available

• Fast throughput.

• Automation saves operator time and increases your lab’s efficiency
• An urgent-sample interruption can be made at any time

Operation is completely automatic. The sample is measured and the data recorded. Depending on how the system is configured the data may also be printed, saved as an Excel file or transferred to a LIMS system

Full Automation

Multiple measurements from one sample, with full automation and automatic cleaning and drying.

Description

Combine instruments with Automation to Measure: Refractive Index, BRIX, Density, Specific Gravity, Optical Rotation, Color, Alcohol % vol/vol, Proof and more all from a single sample.

AutoFlex gives you the most flexibility in sample vial selection, sample handling and instrument combinations.

Ideal for high throughput Flavor, Fragrance, Alcohol, Chemical, Petroleum, Food Labs who run many samples each day and want automatic cleaning of the system.

AlcoTest^®-RI

By measuring Specific Gravity and Refractive Index the alcohol % by vol/vol can be determined for many products. This is a fast, single sample load solution for the Alcopops, Wine and Beer industries. The process of pre-distilling samples to remove the alcohol and adding back distilled water to replace any solids is eliminated. Simply load a sample into the system, the system measures the sample and using the AlcoTest software calculates the alcohol %.

AlcoTest^®-RI-J209 is ideal for

• High volume producers of Alcopops products with high solids and/or high sugar based flavorings

• Producers of wine who wish to quickly measure alcohol % by vol/vol

• Producers of beer and other malt beverages

• Distilled Products with Obscuration

For alcohol % by vol/vol the following accuracies apply

better ±0.01 % v/v with DDM 2911 PLUS – TTB Compliant for high proof spirits

better ±0.04 % v/v with DDM 2911

better ±0.07 % v/v with DDM 2910

For obscured products, accuracies will vary by product. Ask for a demonstration or sample study.

Scientific Solutions

Scientific Solutions have been providing carefully selected laboratory and analytical equipment to Australian Industries such as Environmental, Pharmaceutical, Food and Beverage and Research markets of the Science Industry for over a decade.