WITT LEAK-MASTER PRO Systems for Non-Destructive Package Leak Testing

Modified atmosphere packaging (MAP) requires rigorous quality control to prevent product spoilage and maintain shelf life. WITT Gas provides the LEAK-MASTER PRO and PRO 2 series to address these requirements in the food, pharmaceutical, and consumer goods sectors. These systems identify microleaks as small as 10 micrometers, which prevents oxygen ingress or moisture exchange that leads to atmospheric degradation within the package. Because the testing process is non-destructive, the integrity of the packaging remains intact, allowing tested products to return to the production line. This methodology reduces material waste compared to traditional water-bath testing methods and protects against the technical risks associated with compromised seals.

CO2 sensor technology and automated detection
The systems utilize carbon dioxide (CO2) sensor technology to monitor the atmosphere within a vacuum chamber. When a package containing CO2 is placed in the chamber and a vacuum is applied, a pressure differential is created between the internal package environment and the chamber. If a leak exists, CO2 escapes the package and is detected by the infrared sensor. This automated mechanism ensures that results are independent of operator judgment, which increases the reproducibility and reliability of quality control data. The integration of compressed air or electric vacuum pumps allows for rapid vacuum generation, facilitating high-throughput testing cycles in demanding industrial environments.

Design variations for diverse packaging formats
The series includes six chamber sizes to accommodate various packaging scales, ranging from individual containers to large bulk cartons. The PRO 2 model is a tabletop unit designed for small to medium-sized individual packages. It features an integrated LED status display for immediate visual feedback and a durable design optimized for space-constrained laboratory or production settings. For larger formats, such as complete shipping cartons or E2 boxes, the stand-alone PRO model is utilized. This larger unit is constructed with a robust stainless steel housing and employs an electric vacuum pump to manage the increased volume and surface area of bulk packaging.

Data connectivity and process integration
Operational efficiency is managed through a touchscreen interface that supports multi-level user login and product selection. To minimize manual entry errors and streamline the workflow, the systems can be equipped with optional barcode readers for rapid product identification. Connectivity options, including Ethernet and WLAN, enable the integration of the leak detection system into broader industrial networks. This allows for the digital transmission of test results and the maintenance of comprehensive electronic records, supporting traceability requirements and compliance with international quality management standards.

Edited by an industrial journalist, Lekshman Ramdas, with AI assistance.

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