3H-2000PW multi-station gravimetric method steam adsorption instrument is a kind of research-level analytical instrument, it uses micro balance to measure the weight difference of the sample before 

and after adsorption and desorption under relative differential pressure to test the adsorption and

 desorption capacity of the sample to a certain steam and gas. 

3H-2000PW multi-station gravimetric method steam adsorption instrument can measure the adsorption capacity, 

adsorption rate and other parameters of the materials to the water steam, organic steam and a 

variety of gases; among vacuum gravimetric method steam  adsorption instruments, it is the first multi-station instrument in the world, which supports simultaneous analysis for 1 to 8 analytical stations, 

so as to suitable for the scientific and research units and enterprises users which do research and 

studies to the adsorption capacity of many materials, because of its unique advantages, gravimetric 

method instrument has been widely used in many high-end laboratories around the world. 

Main Functions:

 ? steam adsorption and desorption isotherm       ? steam isobaric adsorption and desorption velocity; 

 ? gas adsorption and desorption isotherm            ? gas isobaric adsorption and desorption velocity;

? Specific surface analysis;                                         ?Pore volume and pore size analysis

? vacuum degassing thermogravimetric analysis; ?Reagent distillation and purification; 

Report Content: 

? Analytical summary report                             ?Vacuum degassing thermogravimetry report;

? Adsorption and desorption isotherm          ?Adsorption and desorption velocity;

? BET single-point method specific surface ?Langmuir specific surface;

? BJH method Mesopore analysis                  ? T-plot method micropore analysis;

? D-R method micropore analysis;                 ? HK method micropore analysis;

? SF method micropore analysis 

Performance Parameters

Resolution ratio/measuring range: 1ug/2000mg（0.1ug/500mg）

                                      1ug/2000mg (0.1ug/500mg is optional)

Dynamic weighing range : 10~1000mg (0.1ug：10~200mg)

Simultaneous analyze quantity of samples: 2, 4, 8 are optional; multi-station 

simultaneous analysis, improve efficiency largely. 

Categories of test gas : Water steam, organic steam and a variety of other gases; 

Vacuum degassing temperature: Range: ambient temperature ~ 400℃, the accuracy degree 

is better than ±0.5℃, and stability is better than 0.2℃;

Analyze test temperature: Range: ambient temperature - 180℃~ 60℃, the accuracy degree 

is better than ±0.1℃, and stability is better than 0.1℃;

Saturated vapor pressure real-time test : With saturated vapor pressure real-time test function, which can guarantee to obtain extremely high relative pressure accuracy;

Comparing with temperature conversion, looking-up and calculations and other indirect methods, the accuracy of saturated vapor steam PO will be improved largely;

Technical Features and Advantages 

(1) Adopt gravimetric method to confirm the structures of gas and steam adsorption and

 desorption volume; Multiple sample test structure; Switch-over structure of steam

 adsorption and gas adsorption; Saturated steam pressure test structure.(Patent Number: 201420155921.0)

 (2) Vacuum system pollution resistant gravimetric method physical adsorption and desorption instrument:

 With cold trap device which can prevent vacuum system from steam pollution;

This cold trap device is integrated with gravimetric method

 steam adsorption instrument, and is one of the components of gravimetric

 method steam adsorption instrument;This cold trap device can

 eliminate steam molecule and other high boiling gases to

 improve vacuum degree.(Patent Number: 201420156173.8)

 (3) Distillation and purification device and gravimetric method physical

 adsorption instrument:With gravimetric method steam adsorption instrument which

 can do distillation and purification device to liquid organic reagent;This distillation 

and purification device is integrated with gravimetric method steam adsorption instrument,

 and is one of the components of gravimetric method steam adsorption instrument;

This distillation and purification device can be operating under the control of procedure automatically.

 (Patent Number: 201420155044.7)

 (4) Heating degassing furnace:Being equipped with heating furnace with vacuum 

thermal-protective coating;Adopting combined thermal-protective method with vacuum thermal-protective coating and high temperature thermal insulation cotton, which will get improved

 thermal insulation effect comparing with ordinary heat preservation and thermal insulation 

or air thermal insulation, it will reduce heat loss, reduce temperature influence

 to adjacent parts; burning protective and keep safe. (Patent Number: 201420148362.0)