Walk-in climate chambers: Energy-efficient chambers for individual requirements

ThermoTEC walk-in chambers were specially designed for stability tests according to GMP. They are ideally suited for storage in all current climates of the ICH guideline (Q1A). An intelligent climate control system in combination with a high-precision control system enable excellent homogeneous temperature and humidity distribution within the chamber. Cooling water is used for cooling and dehumidification, which is generated by means of an air-cooled cooling water recirculating chiller if no on-site network is available. Alternatively, the chambers can also be equipped with an air-cooled refrigeration unit (direct evaporation). Ultrasonic humidifiers are used to humidify the climate chambers. The advantage of this system is its excellent control properties and low energy requirements. Regular flushing of the humidifier prevents the formation of germs. A separate dehumidification register is used for dehumidification. Forced dehumidification is very low in this way, but the energy savings are high.

The temperature and relative humidity are controlled and regulated using a Siemens S7-1200 programmable logic controller (PLC). These are standard hardware components that are classified as hardware category 1 in accordance with GAMP. The control software is classified according to category 3 (standard software). The user management, alarm and event log functions are based on the requirements of FDA 21 CFR Part 11. The PID controllers are integrated in the PLC. All warnings and faults are also processed and evaluated here and the collective alarm relays are controlled. The parameter settings and the definition of the alarm limits are implemented via a color touch screen (HMI). Settings can be changed depending on user rights.

faq-frage#We already have climate chambers in our inventory, but the technology is no longer state of the art. Can you also just replace the technology? |faq-answer#Yes, we can use our energy-efficient technology here.~faq-question#Is user management integrated into the control system? |faq-answer#The chambers are controlled using standard hardware components that are classified as hardware category 1 according to GAMP. The control software is classified as category 3 (standard software). The user management, alarm and event log functions are based on the requirements of FDA 21 CFR Part11.~faq-frage#What options are there for forwarding fault and alarm messages?|faq-antwort#The forwarding of collective fault and warning messages can be easily realized by means of the standard built-in signal relays. Optionally, we can also forward the process data to the BMS via MODBUS TCP, OPC/UA or another bus system. Sending via e-mail is also possible.~faq-frage#Do you also offer qualification (IQ/OQ/PQ) as a service?|faq-antwort#Yes, we offer qualification of the systems in accordance with our ThermoTEC standard.

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