OpTech® O₂ – Model P


The new OpTech-O2 Model P test system from Mocon operates with a patent-pending Pressure Needle with a sensor to measure the internal pressure of a package and calculates the precise oxygen reading. The internal pressure of the package has a direct impact on the accuracy of the oxygen reading.

The instrument’s ability to automatically compensate for the internal pressure when measuring headspace gas is especially important for small packages, such as blister packs. This is because of the range of actions, such as the force required to insert the needle, can impact the internal pressure of the package. The capability also benefits any package size with unknown internal conditions.

An added benefit of this model is that the sensor of the Pressure Needle is located at the tip and is inserted directly into the headspace, which

eliminates the need to extract headspace to conduct a test. The non-consuming sensors allow long-term shelf-life studies by measuring the changes within the headspace of the same package.

MOCON’s OpTech-O2 technology relies on an optical sensor that “fluoresces” or gives off light directly related to the amount of oxygen that has been measured in the package headspace. In addition to headspace measurement, the OpTech-O2 Model P is a useful tool for measuring oxygen permeation rates down to 1cc/(m2?day).