Maxon offers a unique approach to valve diagnostic testing with PSTrend, its patent-pending technology which reduces probability of failure on demand (PFD) without line shutdown or having to bypass any burner management safety functions. The PLC-based system pulses power to the valve solenoid, resulting in partial movement of the valve disk, recording and trending that data to show a dangerous, undetected failure state which could result in a catastrophe. The valuable information provided by PSTrend helps operators maintain agency- and standards-mandated valve performance over time while also allowing for predictive maintenance cycles. Regular testing with PSTrend can increase process safety and lead to an operation's increased uptime.

Maxon  (A Honeywell company),