BetterPyc 380 Gas Pycnometer
High-Precision Automated True Density Measurement
BetterPyc 380 Gas Pycnometer measures volume, true density, solid content, and open cell content of solid materials with ±0.0001 g/cm³ resolution. ASTM and ISO compliant.
BetterPyc 380 Gas Pycnometer is a fully automated density measurement instrument based on the gas displacement principle. It non-destructively measures the volume, true density, solid content, and open cell content of solid materials with a resolution of 0.0001 g/cm³. Designed for R&D, quality control, and production environments, this gas pycnometer delivers reliable results across a wide range of industries including pharmaceuticals, batteries, ceramics, and polymers.
What Is a Gas Pycnometer and How Does It Work?
BetterPyc 380 operates by introducing an inert analysis gas — helium or nitrogen — into a sealed sample chamber of known volume. The gas is then expanded into a precision reference chamber. By recording the pressures before and after expansion (Pressure 1 and Pressure 2), the true volume of the sample is accurately calculated. An integrated vacuum pump purges residual gas from the system, ensuring consistency across repeated measurements.
Temperature Control and Pressure Sensing
A precise temperature control system maintains gas pre-heating within a narrow range (10–65 °C), minimizing measurement drift. A high-resolution pressure transducer monitors the pressure inside the sample chamber after equilibration with an accuracy of 0.005 psig/min.
Key Features and Technical Advantages of the BetterPyc 380
A single measurement session yields four distinct parameters: volume, true density, solid content, and open cell content. Automated calibration, automatic leak detection, and dual internal reference chambers minimize operator dependency. The instrument requires only 1–100 cm³ of sample material, making it ideal for precious or limited-quantity specimens. Integrated software supports direct balance connectivity and remote control of an external water bath, streamlining the overall workflow.
Applications: Which Industries Is It Suited For?
BetterPyc 380 Gas Pycnometer can analyze a wide variety of sample types, including powders, porous materials, and irregularly shaped solids. Its compliance with ASTM and ISO standards makes it a trusted tool for quality assurance and process optimization in pharmaceuticals, batteries, ceramics, polymers, and plastic foams. Equally suited to research institutions and production facilities, it supports both fundamental characterization and routine QC workflows.
