The QUINTOC Controller  (an in-house development of Quintex GmbH)
iss based on the protection type Ex pz according to EN 60079-2. It is suitable for flush time and pressure monitoring in Ex Zones 2 and 22The influx of the flushing gas quantity in the ex-p switch cabinet is controlled and after the flush time the installed components will switched on and the interior of the cabinet will be pressurized and monitored.

The following characterized the QUINTOC controller QOS 2:
  Small design, useable in Zone 2 and 22
  Enclosure 120 mm x 122mm x 90 mm
  5 different flushing programs
  Maintenance free system
  Digital magnetic valve with replaceable fuse
  Programmable key switch function with alarm indication
  Programmable alarm relay
  Unblocking relay with 5 A switching load
  Approved according to EN 60079-2
  Ambient temperature range -20°C up to 60°C
  Mountable within or outside the cabinet
  3 free programmable temperature sensors
  Temperature value 1 activates the flushing (for cooling down)
  Temperature value 2 activates the alarm
  Temperature value 3 shut down the system
  Alarm indication for sensor broken