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Southern Manufacturing

Farnborough, Hants(GU14 6TQ)

20/04/2021 - 22/04/2021

Southern Manufacturing and Electronics is the most comprehensive annual industrial exhibition in the (more)

PPMA Show 2021

NEC, Birmingham(B40 1NT)

28/09/2021 - 30/09/2021

PPMA Show 2021 will be the UK’s largest ever event dedicated to state-of-the-art processing and (more)

Advanced Engineering 2021

NEC Birmingham(B40 1NT)

03/11/2021 - 04/11/2021

Join us in our 12th and most important edition to date, as we invite engineers and management from all (more)

Reducing risk with SIL vibration monitoring

Reducing risk with SIL vibration monitoring
Monitoring vibration on critical rotating plant can play a key role in meeting the protection requirements of the latest machinery directives, specifically Directive 2006/42/EC which came into force at the end of 2009. This directive demands that machine manufacturers identify the hazards and risks their products present to users. Any risks identified must be reduced to as low a level as is reasonably practicable. The important consider-ations are that failure of rotating plant can not only be expensive in terms of repair cost and lost revenue through downtime, but also pose a significant health and safety risk. Also, what level of integrity does a vibration protection system need to ensure safe shutdown under all operational conditions? 

To help manufacturers and operators meet these latest protection require-ments and to minimise the risks, condition monitoring specialist Sensonics has developed proven and robust vibration protection systems for many industrial sectors. For example its DN2611 SIL (Safety Integrity Level) rated dual channel monitor is ideal for machine casing and bearing vibration monitoring applications. It provides dual level alarms (warning and danger) for each channel and provides a relay interface for plant shutdown and health monitoring. 

Current loop outputs for each channel are provided for interfacing with a PLC for trending and further alarm monitoring. The transducer interface can be configured for operation with or without safety barriers. In a simplex configuration the monitor used in conjunction with Sensonics PZS4 accelerometer is suitable for SIL 1 applications, while in a duplex configuration (two parallel channels) protection can be provided at a SIL 2 level.

Where the probability of failure to trip on demand for each configuration is designed to meet SIL target, the resulting spurious trip performance is also excellent. This ensures a high integrity protection solution with minimal risk of downtime due to spurious events.
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