Glove Integrity Tester for Isolators
Documentation
Description of the EREA glove tester
The tester developed by EREA is:
- Equipped with two sensors that detect the pressure inside the glove
- Integrated with a Siemens HMI interface for full control
- Designed to be lighter, with lower energy consumption and greater autonomy
- Easy to use, with reduced mechanical complexity
- Adaptable to different glove port formats (round, oval, etc.)
- Featuring exclusive dual-sensor technology
Exclusive dual sensor technology
The EREA glove integrity tester is controlled via the Siemens WinCC Unified system, a recognized reference in the pharmaceutical industry. This interface provides complete and intuitive traceability, including:
- Automatic report generation
- Alarm log accessible at any time
- Secure audit trail to ensure data integrity
This solution is perfectly suited to demanding and regulated environments.
Thanks to its intelligent design, the tester allows continuous calibration using pressure sensors without any disassembly. It incorporates exclusive dual-sensor technology:
- The first sensor measures and regulates the pressure inside the glove
- The second continuously monitors the reliability of the first sensor
If a deviation is detected, a preventive alarm is triggered to alert the user that calibration is required.
The EREA tester is compatible with WPA2 Enterprise, a centralized authentication protocol ensuring that only authorized devices can connect to the Wi-Fi network. In addition, the Wi-Fi router is configured to be invisible to computers, as it does not broadcast its SSID. This ultra-secure connection is accessible only to users with valid credentials, providing effective protection against cyberattacks.
Operating principle
Thanks to its operating principle based on Hagen-Poiseuille’s law, the tester can simulate leaks equivalent to those generated by very small defects. For example, a calibrated 260 μm orifice used in testing is equivalent, in terms of leak rate, to a hole of around 113 microns in a glove. This means that the tester is sensitive enough to ultimately detect a hole of this size, thus ensuring a high level of micro-leak detection.
Once a year, secure and traceable calibration is carried out using a dedicated programme in the HMI and a test bench that reproduces the test conditions, enabling the accuracy of the pressure sensors to be checked and validated without dismantling, with the option of on-site intervention or return to EREA.
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