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The valve monitoring system is primarily designed as an interface between the fluid or pneumatic power operation of a machine and the electrical safety circuits monitoring gates, guard and emergency stop circuits. The monitoring function can provide for detection of a single valve fault including change of switching times, sticking valve or spontaneous change of state as per the requirements of ISO 13849-1 and other national and international machinery safety standards.
Safety pressure monitors have been design to interface into new or existing safety systems where residual pressure must be depleted. The monitors consist of a non-adjustable preset between 3 & 6 psi switchover on depressurisation and 15psi switchover on rising pressure.