RUDOLPH DENSITYMETER DDM RANGE: All the models of the DDM range are totally automatic, digital and have a built-in, touch-sensitive screen. They can control the temperature of the sample through electronic heating and cooling – Peltier method. The VideoView which is patented in the name of Rudolph comes with the basic unit. The entire U-tube is also scanned with a 10X camera. This ensures even the smallest bubbles to be magnified 10 times and the images are shown live in the screen. The range is between 0 – 3 g/cm3. The min volume of sample required is 1ml. The systems are equipped with 5 USB Ports, 2 RS232 Ports, Ehternet Port for Network Connection, Keyboard, Barcode Scanner, Mouse, Network capabilities.
They have a built-in 8GB Non-removable Compact Flast Internal Memory and the entire system would be driven by Embedded Win 7 OS. With calibration in one temperature the system works throughout the temperature range.

DDM2911: This is the top-of-the line system with a resolution of 0.00001 g/cm3, repeatability of 0.00001 g/cm3 and an accuracy of 0.00005 g/cm3.


DDM 2911 Density Meter Specifications

Measurement Ranges

Density: 0 to 3 g/cm³

Temperature: 0°C to 95°C (controlled via Peltier)

Pressure: 0 to 10 bars

Measurement Modes

Continuous, Single, Multiple

Measurement Technique

Mechanical Oscillator Method


Density: 0.00005 g/cm³

Temperature: 0.03°C


Density: 0.00001 g/cm³

Temperature: 0.01°C


Density: 0.00001 g/cm³

Temperature: 0.01°C

Option: Plus Performance

Accuracy: Density: 0.00001 g/cm³

Calibration required if temperature setting is changed

Repeatability: Density: 0.000006 g/cm³

Resolution: Selectable 0.000001 g/cm³, 0.00001 g/cm³, 0.0001 g/cm³

Minimum Sample Volume

Less than 1 mL

Wetted Materials

Borosilicate glass, Teflon (PTFE, ECTFE)

Operating System

Embedded Windows 7; embedded software safe from malware and viruses


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 and scratch resistant monitor, the industry’s largest and most flexible interface

Communication Interface

Touch Screen User Interface

5 – USB Ports

2 – RS232 Ports

Ethernet Port for Network Connection, Keyboard, Bar Code Scanner, Mouse, Network Capabilities

Video Scanning & Magnification

Video assisted view of entire cell, capable of approximately 10X magnification with scanning camera

Internal Memory

8GB Non-removable Compact Flash

Operating Dimentions

11.80″ (W)  13.90″ (H)  18.36″ (D)

29.97 cm (W)  35.30 cm (H)  46.61 cm (D)

Shipping Dimensions

24.5″ (L) x 17.5″ (W) x 22″ (H)

62cm (L) x 44cm (W) x 56cm (H)

Shipping Weight

50 lbs. (23 kg)

Power Supply

85 to 260 VAC; 48 to 62 Hz

Power Consumption

140 Watts at peak

Measurement Time

30 – 60 seconds

Origin of Manufacture and Design


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