Features: Data processing: P rho T gas density calculation model has high precision, eliminate the calculation error, increase testing precision. Thermostatic system: the system can realize two-way temperature control of heating and cooling can maintain a constant test temperature 25 ℃, keep the temperature uniformity of the testing system, improve the testing accuracy and repeatability. Control system: high level of integration and anti-interference ability, can choose a variety of flexible through software test mode Test control: programmable embedded system, touch screen operation, USB external keyboard and mouse operation; Technical indicators Test method: volume displacement method, the gas expansion method The host function: true density, rigid foam opening rate and obturator rate (porosity) Determination of pressure: optional external vacuum pump, to achieve suction (0 and 1 bar) or positive pressure bar (1-2 bar) two modes are measured Measurement accuracy: plus or minus 0.02% accuracy, repeatability plus or minus 0.01%, the test resolution of 0.0001 g/cc Sample quantity: can the determination of 3 samples at the same time Pressure precision: imported high precision pressure sensor, the accuracy of 0.04% FS, long-term use of stability 0.025% FS Test gases, high purity He air or N2 (recommended to choose 99.999% purity)
Features: Data processing: P rho T gas density calculation model has high precision, eliminate the calculation error, increase testing precision. Thermostatic system: the system can realize two-way temperature control of heating and cooling can maintain a constant test temperature 25 ℃, keep the temperature uniformity of the testing system, improve the testing accuracy and repeatability.
