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Handheld Density Meter DDM 29

  The Rudolph DDM29 handheld density meter combines precision, durability, and portability in one sleek device. Featuring a rugged 316 stainless steel double U-tube, it delivers lab-grade accuracy in under a minute. With built-in Peltier temperature control, a vibrant 7-inch touchscreen, and a long-lasting rechargeable battery, it’s perfect for on-the-go professionals in pharma, food & beverage, and petroleum industries.
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Handheld Density Meter DDM 29

Specifications

AccuracyDensity: 0.0005 g/cm3* | Temperature: ±0.1°C
Repeatability
(Standard Deviation)		Density: 0.0001 g/cm3 Temperature: 0.02 °C
ResolutionDensity: 0.0001 g/cm3 Temperature: 0.01°C
Temperature Selectable20 or 25 °C ±0.01°C
Temperature Control (Controlled via Peltier)20 or 25°C. Selectable up to 0.001°C
Ambient Temperature-10 to + 55°C
% Concentration ScalesUnlimited
Ambient Temperature Limit0 to 35°C
Pressure Range0 to 10 bar (145 psi )
Measurement ModesContinuous, Single, Multiple
Measurement TechniqueMechanical Oscillating Double U-Tube Method
Measurement RangeDensity: 0-3g / cm3
Minimum Sample VolumeApprox 1mL
Wetted Materials316 Stainless steel, Teflon PTFE, ECTFE, PVDF
Supported scalesDensity, Specific Gravity, Alcohol Tables, Sugar/Extract, API functions, H2SO4 tables, acids, bases, organic and inorganic chemicals
Operating SystemAndroid OS
Measurement TimeTypically 30 – 40 seconds after thermal equilibration
DisplayBright LED – 7” touch screen.
Communication InterfacesUSB-C, WiFi, Bluetooth® –Manual Entry, RFID, and
Barcode for entering sample IDs are all Standard
PrintingWireless Printing Via Airprint
Remote SupportTroubleshooting, Diagnostics Tools, Software
Updates available via the Internet
Internal MemoryUp to 3,000 Measurements
Operating Dimensions7.28” (L) x 4.83” (W) x 13.59” (H)
18.49 cm (L) x 12.27 cm (W) x 34.52 cm (H)
Shipping Dimensions18” (L) x 18” (W) x 12” (H)
Operating Weight3lbs  6oz
Charging /Power
Consumption		2 hours charging provides up to 4 hours of measurements
in heavy usage or 8 hours under normal usage.
Included with InstrumentCharging station, syringes, instructions
Protection ClassIP54
Country of Manufacture
and Design / Warranty		1 Year Domestic and international warranty

Overview

Temperature Controlled Measurements at 20° and 25°C

The problem with most portable Density Meters is they drift because they do not control temperature. All Density Meter measurements are highly sensitive to temperature and mathematically correcting for temperature may not be good enough for some applications. Only temperature control will result in the accuracy many users require. 

The Rudolph DDM 29 Handheld Density Meter utilizes powerful and compact Peltier technology. Control of the sample temperature for precise heating and cooling to ensure stable and accurate measurements at either 20 or 25°C.

Rugged Stainless Steel Double U-Tube for unmatched accuracy, durability, and weight reduction

The Rudolph DDM29 portable density meter uses a 316 Stainless Steel, Double U-Tube instead of a simple glass U-Tube. This new design is durable and corrosion resistant. Stainless Steel is preferable for customers who are tired of replacing glass U-Tubes in other handheld brands.

The Double U-Tube design allows for handheld accuracy and rapid measurement speed. Demonstrating 3 decimal place measurement readings in 30 seconds, and 4 decimal measurements in 60 seconds.

User friendly GUI and Bright, Back Lit,Touch Screen Display

Extremely easy to use Graphic User Interface (GUI) and the availability of 10 different Languages on a brightly lit 7 inch(128mm) touch screen makes this the most User Friendly Density Meter in the market today. The interface is a bright LED touchscreen, with a large easy to navigate GUI. No more difficulties reading measurements in bright or dark environments.

Portability and Flexibility

TheDDM29 is powered by a Lithium-Ion battery that is easily recharged, your DDM29 is ready to go everywhere you need to make measurements. This might be at the loading dock when receiving incoming raw goods or out on a distillery floor. The Lithium Ion battery can be charged in approximately 2 hours providing up to 4 hours of constant measurements under heavy usage or 8 hours of normal usage. Included is a Charging Station for convenient stationary charging.

Laboratory Accuracy – Everywhere You Need to Measure

Most Portable Handheld Density Meters use temperature correction and publish 2 or 3 digit accuracy which is very prone to drift. The DDM29 uses Peltier Temperature Control, which eliminates drift and provides accuracy to the 4th decimal place. Laboratory accuracy in the DDM29 reduces testing of materials in the main Lab. Testing can now be done accurately in the receiving dock, formulations area, or where ever measurements are needed.

Flexible Method Management

Factory installed measurement methods cover a wide group of industries and applications. The DDM29 is factory configured with over 50 density and concentration tables, such as Brix, %Alcohol, API, and most common chemicals. Additional tables, polynomials, and formulas may be added.

A measurement method is created exactly for unique measurement applications. You may use Concentration Tables, Formulas
and Polynomials to match the measurement methods used in your laboratory or field application.

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