Pilz Automation Safety L.P.'s PMDsigma electronic monitoring relays
PMDsigma electronic monitoring relays monitor values such as voltage, current, temperature and phase sequence. They offer the ability to set values via a rotary knob and then save them to a chip card. Data remains flexible and can be copied over to other units. A plain text display supports parameter setting. The relay monitors true power and provides an early warning system for hazardous plant conditions, with no requirement for additional sensors.