SDW-TD Material True Density Tester

SDW-TD Material True Density TesterProduct Introduction

SDW-TD Material True Density TesterAdopting all metal pipelines, it is a fully automatic testing instrument that uses gas displacement method to detect the true density of liquids (non-volatile, non corrosive) and solid substances. The instrument is mainly used in industries such as food safety, new energy, new materials, environmental protection, and minerals, and can test substances such as food, beverages, petroleum, coal, floating beads, alumina, refractory materials, battery materials, etc. The instrument adopts a dual control system, which can be connected to an external computer or controlled by the instrument's built-in industrial computer.Using Archimedes' principle - gas expansion displacement method, small molecule inert gas (He or N2) is used as the medium, and Boyle's law: PV=nRT is used to calculate the volume of gas displaced by the sample in the test chamber, so as to accurately measure the skeleton volume (including closed pores) of the sample. Then, according to the density equation:ρ=M/VCalculate the true density value The gas expansion displacement method replaces liquid with gas to determine the volume displaced by the sample This method can avoid testing errors caused by sample dissolution in the immersion method and has the advantage of not damaging the sample. Because gas can penetrate the extremely small pores and irregular pores on the surface of the sample, the measured sample volume is closer to the true volume of the sample, which can be used to calculate the density of the sample. The test value is also closer to the true density of the sampleProduct features;Using Archimedes' principle - gas expansion displacement method, small molecule inert gas (He or N2) is used as the medium, and Boyle's law: PV=nRT is used to calculate the volume of gas displaced by the sample in the test chamber, so as to accurately measure the skeleton volume (including closed pores) of the sample. Then, according to the density equation:ρ=M/VCalculate the true density value The gas expansion displacement method replaces liquid with gas to determine the volume displaced by the sample This method can avoid testing errors caused by sample dissolution in the immersion method and has the advantage of not damaging the sample. Because gas can penetrate the extremely small pores and irregular pores on the surface of the sample, the measured sample volume is closer to the true volume of the sample, which can be used to calculate the density of the sample. The test value is also closer to the true density of the sample

Product Features:

Main functions: true density, true volume, apparent density, apparent volume, porosity (applicable standards: GB/T40401-2021、GB/T 6949-2010、GB/T 217-2008、GB/T 23561.2-2009、GB/T 32158-2015、GB/T 24203-2009、GB/T 5071-1997、GB/T 2999-2002 、GBT 24586-2009、GB/T 5526-1985）； Testing accuracy: accuracy error not exceeding ± 0.02%, repeatability error not exceeding ± 0.02%, division value: 0.0001 g/cm3; ◆ Pressure sensor type: silicon thin film capacitive pressure sensor, pressure range: 0KPa~100KP, pressure accuracy: accuracy is better than or equal to 0.1% of the actual reading; Test speed: not exceeding 5 minutes (excluding flushing time); ◆ Test range: all kinds of non-volatile, non corrosive powder, granular, blocky, foam solids, and the true density density of solids is unlimited; ◆ Sample tube: standard sample tube not less than 20cm3; Customizable special sample tubes with a capacity of 3cm3-1000cm3; ◆ Testing chamber: The sample tube can be directly used as a testing chamber; ◆ Automatic installation: Configure a sample tube automatic installation device; ◆ Repeat testing: The automatic repeat testing frequency can be set, and the test results display the average value and the single test value;◆ Operation mode: Dual control system, built-in operating system, can also be connected to an external computer. The instrument itself has a built-in microcomputer touch screen control system, and the instrument can also be operated through the touch screen. Both operation modes are fully automated, without the need for manual supervision, and automatically generate and save test results. The dual control system can provide users with more convenient operation methods. Users can switch operation modes at any time according to their needs, and both systems have full voice prompts throughout the process; Valve type: pneumatic valve;

Other functions: equipped with air tightness self check function, can manually control the actions of various hardware of the instrument, and the system automatically restores normal pressure after testing is completed; Dual gas testing: optional helium and nitrogen dual gas testing;