DDM Series Density Meters

Description

Rudolph Research Analytical's DDM Series are benchtop instruments for measuring the density of liquid samples. They achieve high precision through controlled temperature management of the sample cell, which is critical for accurate results. The required sample volume is typically around 1 mL, though this can vary based on the chosen loading accessory. These meters can measure densities across a range of 0.0 to 3.0 g/cm³. Different models within the series offer varying degrees of accuracy, specified as 0.0002, 0.0001, or 0.00005 g/cm³. In practical use, these devices serve diverse industrial and research applications. For petroleum products, they can determine API gravity in compliance with standards such as ASTM D1250. Within chemical laboratories, the meters support multiple measurement units and can calculate solution concentrations, which is useful for verifying batch consistency. Pharmaceutical applications benefit from data management features that support compliance with regulatory guidelines, including options for electronic records. The instruments are also employed in the beverage industry for analyzing parameters like sugar content, with specific functions to account for carbonation in samples.