Flameproof Systems

TEL can provide Airflow Monitors and Airflow Controls suitable for Zone 1 and Zone 2 hazardous or flameproof areas, Gas group IIC, Temperature class T6.

For installations where the hazardous area is contained within the Fume Hood chamber the standard airflow monitor or controller can be used with certified Zener Barriers fitted to the airflow sensor.

For installations where any part of the laboratory is classified as the hazardous area the airflow monitors or controls are mounted in a Safe Area control panel fitted in a designated safe area (eg corridor) and remote Ex rated Indicators and alarms fitted to the Fume Hood. These can include the following options:

  • Air Safe and Air Fail LED’s
  • Sash Safe and Sash High LED’s
  • Audible Alarm with Mute Button
  • Fan Stop/Start switch