Worlds 1st Rotating Paddle Limit Switch with SIL2

The terms ‘functional safety’ and ‘safety integrity level (SIL)’ have occurred more frequently since the publication of the international standard IEC 61508/IEC61511.  The consideration of functional safety, particularly in systems with hazard-causing processes such as in chemical plants, has become indispensable.

In these environments, safety-related practices, design principles and error considerations must be met in order to minimise the risk of a dangerous failure. The engineers at UWT focused on this area and redesigned the rotating paddle switch Rotonivo® RN6 series according to the normative requirements of functional safety to ensure safety functions in a risk mitigation in accordance with SIL2. Typical safety functions are overfill and dry run protection.
As part of the functional safety issue, the RN6 electronics have been redesigned.  This has been configured so that any failure of electrical components leads to a safe switching state of the output signal and thus a hazardous situation is avoided.
With the innovative SIL2 compliant Rotonivo® RN6, operators of safety-related systems have a sensor system in accordance with their specified safety integrity level and the perfect metrological component in their safety circuit.
This Rotonivo® RN6  is the only rotating paddle limit switch in the world with SIL2.