Cleanroom Monitoring - Reliability for the Toughest Requirements

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Clean and ultra cleanrooms are required for special production methods – especially in medicine and pharmaceutical technology, since particles in ordinary ambient air would have an adverse effect.

Measurement & Instrumentation

Cleanroom Monitoring - Reliability for the Toughest Requirements
Cleanroom Monitoring - Reliability for the Toughest Requirements
Pressure, moisture, and temperature measurements in cleanrooms with the JUMO mTRON T automation system
Pressure, moisture, and temperature measurements in cleanrooms with the JUMO mTRON T automation system
Capacitive hygrothermal transducer with intelligent interchangeable probes
Capacitive hygrothermal transducer with intelligent interchangeable probes

In a cleanroom, selecting the correct measuring devices for achieving optimum measurement results is paramount. As a rule, particle content, temperature, moisture, and pressure are monitored and recorded. The above stated measurands have a significant influence on quality and productivity. As a result, regular calibrations with measuring devices based on traceable standards are essential. Manufacturers of pharmaceutical products usually have a large number of cleanrooms. The control and recording of temperature, pressure, and humidity have to comply with the stringent rules of GMP (Good Manufacturing Practice).

One controler for everything

The JUMO mTRON T is the ideal solution for controlling, regulating, and documenting the measured values of temperature, pressure, moisture, and particle content in one or several rooms. The various system input and output modules permit a flexible and decentralized system configuration. In particular, the universal configurable analog input modules for resistance or standard signals such as current or voltage set benchmarks here. The integrated CODESYS V3 PLC, in conjunction with the modules for regulation, measured value recording, and data recording form an optimum combination for highly diverse cleanroom applications.

The networking and data communication for the individual components is performed using EtherCAT - a fast, Ethernet-based system bus that is widespread in measurement and automation technology. The JUMO mTRON T system can be used to operate, control, and regulate several individual cleanrooms while the process measured values are logged for quality assurance. In the past, this required individual control systems.

The multifunction panel (HMI) comprises nine registration groups, including batch reporting, to ensure assignment of the recorded process data. The documentation of the process values measured is tamper-proof, which is very important in cleanrooms. Special integrated functions such as email notification in case of emergency or a web server represent cost-effective and reliable alternatives to complex visualization systems. Suitable PC software tools for extracting and evaluating recorded data round out the system.

With its modular system concept and integrated PLC, the JUMO mTRON T automation system can be adapted optimally to applications for controlling and regulating cleanrooms. Since the control tasks are handled independently in the multichannel controller modules, the PLC is available above all for individual control tasks. The integrated CODESYS PLC V3 is key to the system’s flexibility. Plant engineers have the option, for instance, to program functions that are adapted to the existing tasks and visualize user-specific process screens on the HMI. In this way, manufacturers can provide custom screens for basic status, automatic or manual mode, system images, and even configuration screens for their customers. Freely definable user rights can be issued through a user management system with up to 50 users. This prevents operating errors and ensures reliable equipment operation.

Visualization and recording for optimized security

The TFT touchscreen and integrated recording function allows the historical trend to be viewed directly on the system next to the current values, status/alarm messages. This gives the user a high degree of transparency and the option to directly optimize and/or adjust running processes. In this manner, irregularities can be detected at the outset and the corresponding measures can be taken.

The recorded data can be extracted, archived, and evaluated via the interface or USB flash drive using the JUMO PCC and PCA3000 software. These program functions also offer an automatic print-out of the measurement data as a PDF or CSV file. Upon request, this data can be sent directly as an email.

More detailed documentation is possible with the JUMO SVS3000 visualization software. It supports batch-related reporting following the input of corresponding data at the relevant system as soon as the program is started. The software can also operate all connected units. This data can be filtered and extracted by date and time as well as by up to three entered batch information units. The reports generated during this process can be printed and/or exported automatically at batch end. They can also be printed and/or exported manually at any time.

Save time and costs thanks to perfect moisture and temperature measurement

To be able to ignore external influences when producing sensitive products, reproducible climatic conditions are required in the clean­room. With the capacitive hygrothermal transducers of the 907027 series from JUMO, moisture and temperature can be determined by just one device. The devices have intelligent interchangeable probes with internally stored calibration data and performance logs. When required, these probes allow the user to carry out a sensor exchange in seconds without any loss in accuracy.

Precision calibration procedures and the latest microprocessor technology guarantee reliable measuring accuracy across the entire temperature operating range. The exceptional long-term stability is based on many years of experience gained from proven humidity sensors.

Adapted to the process

Reproducible or standardized climatic conditions can be ensured in cleanrooms through measurement, controlling, and monitoring of temperature, moisture, and pressure. Use of the automation system offers the user time and cost benefits, since the modular system opens up all possibilities.

Posted on October 30, 2019 - (866 views)
JUMO GmbH & Co. KG
Moritz-Juchheim-Strasse 1
36035 Fulda - Germany
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