OVERVIEW
This card has been designed to detect the contact between the torch and the plate.  It should work on any system, as it has an input to notify the board when it is going to be sensing and only then it can read the input signal.  This to prevent the board from trying to sense while the plasma is active.

 FEATURES
• Optoisolated input working at 5 to 24VDC or Open collector.
• Status LED.
• Electromechanical Relays with NO and NC positions.
• Terminal power 12 to 24VDC.
• Touch detection system.
• Connection to the torch.
• Din rail mountable