The QPU Controller (a complete new and own development of Quintex GmbH) is a control device to maintain an exfree zone within an enclosure, cabinet or device by overpressure. It is suitable for monitoring the pressure in Ex Zones 1, 21, 2 and 22. After the cabinet or the device was released by gas detection measurement an overpressure will build up and all internal device will be activated. The controller will monitor the overpressure during operation.

the following components are available to build up a system: