When the plastic optical fibre is broken by a PyrOnode, the loop monitoring relay automatically detects and signals the alarm condition.
Eliminates exposure to live parts and arc flash hazards
One relay is required per PyrOptic loop
Operation of the relay is tested by simply removing the plastic optical fibre and observing state change, no tools required.
Easily interfaces to control systems digital inputs or can be wired to drive local LED indication.
The loop monitoring relay is a common automation product (fibre optic amplifier) available from Omron, Banner, Allen Bradley, Pepperl+Fuchs, Keyence and many others. PyrOptic supplies RiKO brand FZ1-KP2 due to simplicity, quality and overall value.
The use of commercial, widely used electronics mitigates obsolescence risk to the end user.