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Help CenterOTR-1902 Oxygen Permeability Tester
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Application：
OTR-1902 is based on the coulometric sensor method and available for the OTR test of flexible films, sheeting and packages. It can test 3 specimens in one operation but with only a average result of the specimens.
Films:
Plastic films, aluminum foil, aluminized films, plastic composite films, paper-plastic composite films, coextruded films, aluminum foil composite films and many others.
Packages:
Plastic, rubber, paper, paper-plastic composite, glass and metal packages, e.g. red wine bottles, blister, various plastic bottles, Coke bottles, peanut oil packages, Tetra Pak materials, vacuum bags, metal three-piece cans, plastic packages for cosmetic, soft tubes for toothpaste, jelly and yogurt cups.
Features metal three-piece cans, plastic packages for cosmetic, soft tubes for toothpaste, jelly and yogurt cups.
Features：
— Coulometric sensor method
— Patent technology
— Film and package test
— 3 specimens test with one aver result
— One-button test, test automatically in whole process
— Multiple test modes optional
— Data curves display
— Computer control
— Digital flow adjustment
— 3 Chambers temperature sensor embedded in
— Environment temperature and humidity sensor inside
— Chambers water bath technology
— Unit based on embedded system,24bit Δ-Σ AD
— Pressure, oxygen and temperature overload protection
— Traceable reference film calibration
— Supports DSM system (DSM, lab data management system)
Principles
Film:
The specimen is clamped between the upper and lower chamber, the upper chamber is purged by a oxygen stream, and the other side of specimen, lower chamber is purged by a stream of nitrogen, due to the effect of oxygen concentration gradient at two sides of the specimen, oxygen molecules will permeate through the specimen into the nitrogen side, penetrated oxygen molecules will be carried to the coulometric sensor which generates the proportional signal, so oxygen transmission rate and permeability coefficient will be obtained by calculating the sensor signal.
Package:
The package is mounted on the lower chamber, the outside of the package is air or a pure oxygen stream, the inside of the package is purged by a nitrogen stream, oxygen will permeate through the wall into the inside of the package, penetrated oxygen molecules will be carried to the coulometric sensor which generates the proportional signal, so oxygen transmission rate will be obtained by calculating the sensor signal.
Technical indexes：
| Test range： | |
| Film | 0.01-2500 cm3/m2·d (Standard) |
| 0.07-2,5000 cm3/m2·d (Optional) | |
| Resolution | 0.001 cm3/m2·d |
| Package | |
| 0.0001~25 cm3/pkg·d | |
| Resolution | 0.00001 cm3/m2·d |
| Specimen amount | 3 specimens with one aver result |
| Temperature range | 5C – 95C (with temperature controller) |
| Temperature accuracy | ±0.1C |
| Humidity range | 0%RH,35%RH-90%RH,100%RH |
| Humidity accuracy | ±1%RH |
| Test area | 50cm2 * 3 |
| Specimen size | |
| Film | size |
| Thickness | less 5mm |
| Package | |
| Max size | D120mm * 400mm |
| Carrier gas | 99.999% Nitrogen |
| Carrier flow | 0~20 ml/min |
| Gas interface | 1/8 inch |
| Power supply | AC 220V 50Hz |
| Dimension | 730mm * 590mm * 350mm |
| Net weight | 55kg |
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