Fill level monitoring

Fill level monitoring

For high system availability

With the fill level monitoring solution from Phoenix Contact, you can detect errors in key system parameters at an early stage, report them and shut down system parts selectively.

Tank farms often consist of differently sized tanks, sometimes with a storage capacity of more than 30,000 m³. The processes of filling and draining the tanks have to be monitored and reliable overflow protection must be installed.

With the solution from Phoenix Contact, you always have the fill levels, temperature, and pressure in view at all times. A system of various sensors, in part in the Ex area, records the corresponding measured values. To ensure that you can transmit, process and respond to these signals quickly, we provide you with the appropriate controller and communication technology package, as well as functional safety components.

Your advantages

  • Tested safety with SIL-certified technology for overflow protection
  • Standardized sensor communication with I/O technology in accordance with NAMUR
  • One contact person for tank and valve monitoring, thanks to a broad portfolio and expertise in solutions and the industry
  • Tested components with international Ex approvals

Easy overflow protection with certified components, even without a safety controller

Immediate detection of errors

Fill level monitoring  

Fill level monitoring

Functional safety sensors measure the fill level and signal dangerous states.

Safe limit value relays are used to interrupt the inlet value control. The flow into the tank is stopped reliably thanks to the spring-closing safety valves, preventing overflows.

Space-saving and reliable components for functional safety

Control technology and safety components for overflow protection  

Control technology and safety components for overflow protection

The Ex i signal conditioner ranges MACX Analog Ex and MACX Safety Ex are ATEX and IECEx approved respectively, and all devices are SIL-certified. MACX Analog Ex devices feature single- and two-channel Ex i signal isolators with an overall width of just 12.5 mm.

We provide you with a certified coupling relay with force-guided contacts for safe startup and shutdown. In the process industry and in machine building: reliable signal coupling must be ensured in the event of an emergency.

Scalable automation modules for tank monitoring

You can create an efficient fill-level control system with the wide range of SIL-certified technology for functional safety, Ex i signal conditioners, and modular control systems. In addition to the fill-level control system, an overfill protection device is installed that controls the safety valve in the event of an emergency and stops the flow into the tank.

Fill level monitoring  

Fill level monitoring with tested components and international Ex approvals


C6 The Exchange
Calmount Park
Dublin 12
D12 XE18