The AREMECA Calibration PLC, offered as Option OP0301 for the BH2 and BA2 series of dead weight testers, is a sophisticated automation module designed to elevate the precision, repeatability, and efficiency of industrial pressure calibration. It functions not as a standalone PLC but as an integrated computational and control assistant, deeply embedded within the calibration workflow. By combining a user-friendly touch screen interface with automated control of the tester's mechanical components, the OP0301 transforms a manual, operator-dependent process into a guided, semi-automated, and fully traceable procedure. The unit is compact, with integrated I/O, and communicates via RS232.

The core value of the OP0301 lies in its intelligent assistance to the calibration operator. During a calibration run, the system prompts the operator by calculating and displaying the exact masses required to generate the desired pressure at each measurement point, taking into account user-defined criteria such as acceptable deviation limits, the number of measurement points, local gravity, and preferred units of measurement. Crucially, the drive mechanism for the set of weights is motorized under the PLC's control. This automation significantly improves the stability of the balance during measurements by eliminating manual handling vibrations and ensures consistent, repeatable loading sequences. The system further aids the operator by providing a dynamic, real-time visualization of the piston's position on the touch screen, giving clear, intuitive feedback on the balance state of the tester.

Traceability and data integrity are fundamental to modern metrology, and the OP0301 excels in this domain. The unit continuously monitors integrated temperature and atmospheric pressure sensors. Using this environmental data, it calculates the precise pressure generated by the dead weight tester at that specific moment, applying the necessary corrections. This ensures that the reported pressure is accurate under the actual operating conditions. The PLC records every measurement result, compares it against the pre-defined acceptance criteria, and provides an immediate "acceptable" or "deviating" status indication to the operator. Critically, the OP0301 maintains a complete and tamper-proof record of the entire calibration session. All results can be exported directly to an Excel-compatible spreadsheet, allowing for seamless generation of detailed inspection reports and certificates. The unit also offers on-the-fly unit conversion (e.g., PSI, kg/cm²) and supports multiple languages, making it a truly global solution for high-precision calibration laboratories and industrial maintenance facilities.

Technical Specifications