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DMA™ 4200 M density meter

Density meter for heavy petroleum samples

The new DMA™ 4200 M is a density meter for exceptional conditions. It measures the density at temperatures between -10 °C and 200 °C and elevated pressures up to 500 bar. The Repeated Fade-out Method used by DMA™ 4200 M delivers the most stable density results based on comprehensive knowledge of the oscillation characteristics. The new automatic bubble detection, FillingCheck™, makes the DMA™ 4200 M compliant with ASTM D4052 and ASTM D5002. Viscosity influence is eliminated by a fast new viscosity correction, ensuring density results with an accuracy of up to 0.0002 g/cm3. The new Temperfect™ feature of DMA™ 4200 M allows immediate density measurements at any temperature between 0 °C and 150 °C at ambient pressure.
DMA™ 4200 M improves, accelerates, and simplifies density measurement of heavy petroleum samples.

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Key Features

Saves you time, money, and solvent

Saves you time, money, and solvent

  • Small sample volume of 2 mL to 3 mL
  • 10 times faster measurement than manual methods like pycnometers (ASTM D70)
  • Low solvent consumption for cleaning routines
  • Quick cleaning routines
Compliant and reliable results

Compliant and reliable results

  • New automatic bubble detection: FillingCheck™ ensures correctly reported results
  • ASTM D4052 and ASTM D5002 compliant
  • Fast and new viscosity correction
  • Reliable tool for density measurement at elevated temperatures and pressures
Strong and fast U-tube

Strong and fast U-tube

  • High chemical resistance to sour gas, hydrochloric acid, and hydrofluoric acid
  • No risk of corrosion and breakage
  • Patented Repeated Fade-out Method for fast measurement (AT 516420 B1)
  • Made of Hastelloy C276, an alloy that is more robust than stainless steel
Quality control of petroleum samples

Quality control of petroleum samples

  • From upstream to downstream
  • On incoming crude oil
  • On intermediate and process samples to give a quick feedback on the refining process
  • For converting volume to mass when trading asphalt/bitumen
  • Replaces pycnometers and hydrometers
Suitable for density studies in research

Suitable for density studies in research

  • Determination of equation of state
  • Calculation and configuration of production processes
  • Pressure-volume-temperature (PVT) analysis of crude oil
  • Bubble-point determination of crude oil
  • The fast and accurate alternative to pressure hydrometers and pycnometers

Technical Specifications

Patent granted AT 516420 B1
Measuring range
0 g/cm³ to 3 g/cm³
-10 °C to 200 °C (14 °F to 392 °F)
Pressure range 0 bar to 500 bar (7250 psi)
0.0002 g/cm³
0.03 °C (0.05 °F)
Repeatability, s.d.**
0.00005 g/cm³
0.01 °C (0.02 °F)
Reproducibility, s.d.**
0.0001 g/cm³
FillingCheck™ Yes (at ambient pressure and up to 150 °C)
Full range viscosity correction Yes (at ambient pressure)
Temperfect™ Yes (at ambient pressure)
Repeated Fade-out Method Yes
Minimum sample volume 2 mL
Wetted materials Hastelloy C276
Footprint 510 mm x 330 mm (20 in x 13 in)
ASTM standards D4052, D5002
Power supply AC 100 to 240 V, 50 to 60 Hz, 250 VA
Connections Pressure fittings for metal tubes with 1/8" outer diameter
Interfaces 4 x USB (2.0 full speed),
1 x Ethernet (100 Mbit),
1 x CAN Bus,
1 x RS-232,
1 x VGA

*this is valid under ideal measuring and sample conditions only (at ambient pressure)

**this is valid under ideal measuring and sample conditions only (at ambient pressure), according to ISO 5725



ASTM D4052
ASTM D5002


USP 841 - Specific gravity


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