Oxygen Permeability Testing Instrument Modified Atmosphere Packaging Lab Testing Appratus

 Oxygen Permeability Testing Instrument Modified Atmosphere Packaging Lab Testing Appratus 

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Application：

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 with independent results.

Films:

Plastic films,  composite films and many others.

Packages: 

Plastic packages.

 Oxygen Permeability Testing Instrument Modified Atmosphere Packaging Lab Testing Appratus 

Features：

— Coulometric sensor method

— Own technology

— Film and package test

— 3 specimens test simultaneously and independently

— 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.

 Oxygen Permeability Testing Instrument Modified Atmosphere Packaging Lab Testing Appratus 

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