Various challenges arise: For example, the containers expand considerably when having been pressurized. Filling large-volume products to the test pressure requires special solutions to ensure that the filling process is not too long. In addition, the testing process can be influenced by the upstream blow molding process due to temperature effects.
The leak tester CETATEST 715 LV (Large Volume) has been developed especially for the packaging industry and has been successfully introduced to the market.
After the start impulse of the system control the complete test sequence is controlled by the test device. The option turbo-filling allows a fast and automatic filling to the required test pressure. Integrated protective circuits protect the test part and the device-internal sensors. To achieve a stable measuring state, the expansion behaviour must be limited. For example, IBCs are tested in the transport grid box and additional hold-down devices are used. Temperature effects can be successfully compensated by switching over to accordingly parameterised test programs. For this purpose, the temperature of the test part is measured in the test stand and the appropriate test program is selected.
The test pressures are in the range of approx. 25 mbar to 160 mbar (depending on the product). With the CETATEST 715 LV the leak test of a 1,000 l IBC can be carried out in a total test time of less than 30 s, whereby a good separation and repeatability is achieved. Depending on the test part volume, holes with a size of 0.07 mm to 1 mm can be detected reliably.
Due to a multitude of available industrial interfaces, the test device is prepared for Industry 4.0 requirements. The transmission of the measured values to the control system enables traceability and evaluation of the production quality.
The CETATEST 715 LV is delivered as standard with an internationally recognized calibration certificate (in accordance with DIN EN ISO/IEC 17025) and a 3 years warranty.
CETA will exhibit at the Control 2020 fair from 05 - 08 May 2020, Stuttgart (hall 7, booth 7207)