BetterPyc 380: Automatic Gas Pycnometer

The BetterPyc 380 from Bettersize Instruments is an automatic gas pycnometer that uses gas displacement to deliver highly accurate measurements of volume, true density, solid content, and open cell content with up to 4 digits, offering precision at its best.

With temperature control, pressure sensing, intuitive software, and compatibility with industry standards, including ISO and ASTM, it unlocks the full potential of your products.

BetterPyc 380 | Versatile Gas Pycnometer

Video Credit: Bettersize Instruments Ltd.

Features and Benefits

  • Multiple Functions

Provides four measurements, including volume, density, solid content, and open cell content, while maintaining the sample integrity.

  • High-Accuracy 

Ensures extreme accuracy and reliability with temperature control, high-resolution transducers, and calibrated chamber volumes.

  • Effortless Operation

Offers automatic measurement, calibration, and leak detection, which are accessible to operators of all experience levels.

  • Integrated Software Solution 

Direct connection to balance and remote control to the external water bath.

  • Friendly Sample Requirement

Only needs a 1-100 cm3 sample and maintains the integrity of your samples.

  • Conformity

ASTM D923-22/D6226-21/D2638-21/D5965-20
ISO 8130-2:2021/4590-2016
USP 699


Table 1: Source - Bettersize Instruments

Measuring Principle Gas Displacement Method
Measuring Parameters Volume, Density, Solid Content, Open Cell Content
Cup Capacity 10 cm3, 35 cm3, 100 cm3 (nominal)
Measurement Performance
Sample Volume 1 -100 cm3
Temperature Range 15-55 °C
Temperature Stability 0.1 °C
Transducer Accuracy ≤ 0.1%
Accuracy 0.03%
Repeatability 0.01%
Resolution 0.0001 g/cm3
Analysis Gas
Pressure Range 0 - 22 psig (0 - 152 kPag)
Type Helium (suggested), Nitrogen
Instrument Dimensions
Weight 10.6 kg
WxDxH 345 mm x 297 mm x 221 mm
Supply Voltage 100/240 V, 50/60 Hz
System Windows 7 or higher
Connections USB ports


  • Calcined Coke
  • Cellular Plastic
  • Cement
  • Food
  • Pharmaceutical
  • Pigments
  • Powder Coating
  • Powder Metallurgy
  • Refractory
  • Soil

Image credit: Bettersize Instruments

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