JK-ZM2000 true density and open/closed cell rate analyzer Beijing

JK-ZM2000Introduction to True Density Meter

JK-ZM2000The true density meter isA fully automatic high-precision gas density meter based on ASTM standards for measuring open and closed cell content.

• Instrument principle

The main principle of the instrument is to correct the gas equation with gas. The sample in the vacuum system is equilibrated at different pressure points in a constant temperature environment. The signal is collected by a pressure sensor, and then converted to AD by an acquisition card. The data is transmitted to a computer or upper computer through a communication interface and processed using professional softwareData analysis, graph drawing, automatic saving, and data printing.

2. Testing methods

The instrument will load an appropriate amount of sample into the sample tube, connect it to the vacuum system, use a vacuum pump to evacuate, heat and degas the sample, and clean the surface of the sample; Then, a pure gas (usually helium) is introduced for constant temperature equilibrium; Calculate the true density using various theoretical models based on the difference between the pressure values in the unloaded state and the loaded state.

• pneumatic system

The air circuit includes intake control valve, vacuum pipeline, vacuum solenoid valve, vacuum pump, exhaust control valve, and sample tube

• circuit system

The circuit includes switch power supply, absolute pressure transmitter, acquisition card, data cable, etc.

3. Performance parameters:

1. True density and open/closed cell analysis range: sample volume 10-150CM3

2. True density and open/closed cellaccuracy:

0.025%(Large sample pool); 0.03% (medium sample pool); 0.03% (sample pool)

3. True density and open/closed cellrepetitiveness

0.02%(Large sample pool); zero25% (medium sample pool); zero25% (small sample pool)
Resolution: 0.0001g/cc

4. High purity helium gas is used for true density and open/closed cell analysis,Nitrogen is suitable for materials that allow helium to penetrate.There are three types of standard calibrators: large, medium, and small, which meet the analysis requirements of various ranges.

5.JK-ZM2000The true density meter isA fully automatic high-precision gas density meter based on ASTM standards for measuring open and closed cell content.
The fully automatic measurement system is used to determine:
-Open room (opening) content§
§-Closed room (open hole) content
-ASTM standard method§
-Compression rate of automatic analysis room§
-Love hole chamber rupture rate§
§Application: Packaging materials, floating materials§Thermal insulation materials,
mesh material§Leather materials,§Mold materials,§
other§Composite foam material,§Electronic materials,§