Gas permeation permeability tester

Product function: It is applied to various gas permeation rate detection, such as O2,CO2,N2 and air, etc, in plastic film, composite membrane, High-barrier materials, sheet, metal foil, rubber, etc.   Operating principle: Using the principle design of differential pressure method, put treated sample in the middle of upper and bottom chamber in advance. Pressure tightly and seal, pick up the suction to the whole system, after reaching the required vacuum degree, close bottom chamber, fill with certain test gas to high pressure chamber, and adjust upper chamber pressure, keep on two sides of the sample forming constant air pressure gradient difference, the gas is under the action of differential pressure gradient, permeating from high-pressure side (upper chamber) to vacuum side (bottom chamber). Accurately measure vacuum chamber (bottom chamber) intensity of pressure variation, calculate various barrier property parameters of test sample. Fully conform to the standard GB1038, ASTM D1434.   Application characteristic High speed vacuum ability, reduce the vacuum time, degassing more thoroughly, high test precision. Short test time, high efficiency; Could extend to test bottle, bag; Power failure protection; A whole-process monitor, automatic recording, can reappear in the whole test process again. Strong graph curve function, convenient for comparison test and analysis; Automatic testing: Set the test parameters, test automatically proceeds after starting, automatically judge the test is over and save the test result. There is general data base system in host software, data could be exported, could store the data, inquire, print, etc. Through the analysis of historical data, it is easy to grasp the history dynamic of the products.   Product feature Pure semiconductor cold and hot two-way temperature control, automatically control temperature and cooling, Temperature range is more wide and more accurate, parallel work, higher reliability. Apply base line technology; remove the system error, test result is more accurate. Be of accurate pressure control ability, maintaining constant pressure difference. Adopt imported high precision vacuum transducer and pressure sensor. Embedded system control, using high quality components, ensure stability and reliability of instrument running   Meeting Standards Compatible with the standard of various tests ISO, etc: ASTM D1434,ISO 2556,ISO 15105-1,JIS K7126-A,YBB 00082003  

Technical index	Technical parameter
Model	DPG-31J
Measurement range( film) (cc/m2·day·0.1MPa)	0. 02-50,000
test precision	0.01 cc/m2•day•0.1MPa
Test sample quantity	3
Primary sensor quantity	1
test pattern	mean value
vacuum error	0.1Pa
vacuum degree	<10Pa
Vacuum efficiency	Less than 27Pa in 20 minutes
testing efficiency	Test time < 4 hours, when transmittance >5cc/m2.day.0.1MPa
Temperature range	5℃–55℃ (90℃ is optional.)
temperature control accuracy	±0.1℃
humidity range	5~90 %RH(double-flow humidity method)
Humidity precision	±1%RH
test pressure	0.1MPa~0.2Mpa
air source pressure	0.1MPa~0.8 MPa
test gas	O2,N2,CO2 or other gas
carrier gas port	Diameter 8
vacuum tube diameter	1/4”
Correction mode	Standard film correction, vacuum transducer external correction
sample thickness	≤3mm
Test area	50cm2,circle( other dimension could be customized.)
Main machine dimension (L*B*H)	960×550×450mm
Weight(KG)	65Kg
Power supply	220V AC 50HZ

    Standard configuration

No	Name	Quantity	Model	Unit	Remark
1	Test main machine	1	DPG-33 J	Set	Include Vacuum sensor system, pressure sensor, gas control system, environmental control system, communication system, display & control system, etc.
2	high-vacuum pump	1	VRD-4	Set	Vacuum ability: 2Pa
3	professional test software	1	G-V series	Set	operating system: Windows 2000 or above XP hardware requirement: memory 1G, hard disk above 80G
4	communication cable	1		Pc	Standard RS232 communication line, 2m long
5	Vacuum steel tube	1.5	1/4”	meter	USA
6	Gas hose	2	Diameter 8mm	meter
7	reduced pressure air valve	1		Pc
8	Circle Sample Cutter- sample	1		Set	50cm2 sampler, cut the sample
9	sealing grease	1		Pc	Dow Corning
10	USB conversion line	1		Pc	USB1.1 expansion path, 1m long
Optional	Bottle bag test clamp	1/3/3		Set
provide by yourself	computer	1		Set
	Gas cylinders used for test(oxygen ,etc)			Set