SPDT switch cable
- Thread starter Indy
- Start date
FMR62 is a high spec Radar sensor designed for SIL3 applications - and your query relates to a 2wire volt free contact cable / cores / earthing ?
If it were any other sensor I would suggest 2 cores or 2 core cable. If you have an earthing diagram I would show bonding to the sensor case although many installations bond without prompting.
If this FMR62 is part of a SIL3 design, I would expect the cable be subject to a HAZOP / Safety Design Study, as it’s
Physical, environmental and routing properties would be subject to close scrutiny; and an earthing study with supporting calculations to show what earthing is needed and why.
If it were any other sensor I would suggest 2 cores or 2 core cable. If you have an earthing diagram I would show bonding to the sensor case although many installations bond without prompting.
If this FMR62 is part of a SIL3 design, I would expect the cable be subject to a HAZOP / Safety Design Study, as it’s
Physical, environmental and routing properties would be subject to close scrutiny; and an earthing study with supporting calculations to show what earthing is needed and why.
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