AccuPyc II 1345 true densitometer, AccuPyc II true densitometer

The true density is determined by a gas density meter. We use Accupyc II 1340 and Accupyc II 1345 for measurement, which uses gas displacement technology to determine the volume of the tested sample. Calculate density using the sample weight determined by a balance. This instrument measures the volume of the sample, excluding any voids in bulk powder and any openings in individual particles that allow gas to enter. The internal (closed) porosity is still included in the volume.
This test is usually conducted at room temperature, but it can also be conducted at temperatures specified by the customer within the range of 0C to 50C. Almost any solid sample and some fluid samples can be measured using this technology.

AccuPyc II 1345 true densitometer, AccuPyc II true densitometer testing principle

The gas displacement method can accurately measure the volume of materials, using inert gases such as helium and nitrogen as displacement media. Firstly, seal the sample in a sample chamber of known volume, fill the chamber with an appropriate inert gas, and then diffuse into an expanded chamber of known volume. The volume of the sample can be calculated by measuring the pressure before and after gas diffusion. Helium can quickly fill pores with diameters as small as a few angstroms, and only the volume of the solid skeleton affects the displacement volume of the gas. The density can be obtained by dividing the sample mass by this volume.

operating environment

temperature	Stable between 15 to 35 ° C (59 to 96 ° F). AccuPyc for temperature control: Temperature stability depends on the specifications of the installed circulation pump. Recommended range: 15 to 50 ° C (59 to 122 ° F)
humidity	Relative 20% to 80% (non condensing)

The instrument itself

height	14.6 centimeters (5.8 inches) 17.9 centimeters (7.0 inches) for analysis modules with 3 units of 1 centimeter, 10 centimeters, and 100 centimeters 25.9 cm (10.2 inches), 350 cm 3 analysis module 43.0 centimeters (17.0 inches), 2000 cm ³ analysis module
width	27.3 centimeters (10.7 inches), control module (without chamber) 27.3 centimeters (10.7 inches), control module (with compartment) 27.0 centimeters (10.6 inches), 2000 cm ³ analysis module
depth	36.2 centimeters (14.3 inches)
weight	9.3 kilograms (20.5 pounds), control/analysis device (Units of 1, 10, and 100 cubic centimeters) 7.9 kilograms (17.4 pounds), analysis module (Units of 1, 10, and 100 cubic centimeters) 10.5 kilograms (23.2 pounds), analysis module (350 cm ³ unit) 3.6 kg (8.0 lb), control module 26.0 kilograms (57.0 pounds), 2000 cm ³ analysis module

electric

voltage	90 to 264 VAC
power	30 volt ampere
frequency	50 to 60 Hz

gas

Suggest using research grade helium gas.If not available, please use helium gas with a dew point of -67 ° C (-88 ° F) or lower.Carbon dioxide, argon, dry air, or nitrogen can also be used for different applications (multi gas options can be used to connect multiple gases).

Sample cup

A 1cm ³ chamber	1.14 cm ID x 1.1 cm D （0.45英寸 ID x 0.44 英寸D）
10cm ³ chamber	Inner diameter 1.85 cm x diameter 3.95 cm (Inner diameter 0.72 inches)X diameter1.55 inches)
A 100cm ³ darkroom	Inner diameter 4.62 cm x diameter 6.18 cm (Inner diameter 1.82 inches)X diameter2.43 inches)
350cm ³ darkroom	5.84cm ID x 13.94cm D （2.30英寸 ID x 5.49 英寸D）
A 2000cm ³ chamber	Inner diameter 9.52 cm x diameter 26.00 cm (Inner diameter 3.80 inches)X diameter10.20 inches)

analysis

precise	The reproducibility is usually within ± 0.01% of the nominal full-scale sample chamber volume.Using helium gas at 15 to 35 ° C, ensure reproducibility within ± 0.02% of the nominal full-scale volume on clean, dry, and thermally balanced samples.
power	Accurate to within 0.03% of the reading, plus 0.03% of the sample capacity