Laboratory densitometer DMA 5000 M is used to determine the density, specific density, concentration, by means of the oscillating cell filled with a sample. The operation principle is based on the measurement of oscillation frequency of U-shaped measuring tube, caused by an electromagnetic generator. Under the influence of the electromagnetic field empty measuring tube oscilates with fundamental frequency, and the tube filled with test substance has different frequency wich changes depending on the weight (density) of the substance. Like a pendulum, the bigger the density of the sample, and therefore the mass contained in the tube, the lower the frequency of oscillation. To recalculate the frequency of oscillations into the density value of sample in study the pre-calibration of setup is performed before the experiment.
Laboratory density meter uses the following built in technologies:
• FillingCheck™: densitometer automatically detects filling errors or bubbles in the sample and informs user.
• U-View™: The filling of the oscillation cells with sample is shown in real time on the screen.
• ThermoBalance™ eliminates the need for calibration at different temperatures and allows quickly acquire an accurate result at any temperature in the range of the instrument.
Specifications of DMA 5000 M
1. Density measurement range is 0-3 g/cm;
2. Accuracy of density measurement – 5⋅10-6 g/cm3;
3. Repeatability – 1⋅10-6 g/cm3;
4. Minimum sample volume required – 1 ml;
5. The time of one sample measurement – up to 30 s;
6. The built-in Peltier thermostat supports the following temperature range – 0-90°C;
7. The accuracy of temperature measurement – 0.01 °C.
