Home > Safety Device > Multi-channel Press Malfunction Detector [PMD] 1.  Five functions are built in to the six channels. 2.  Required functions can be called and set to each channel just simply pushing a button. 3.  Detecting internal timing per degree can be established separately in the three systems (feeding errors, discharge and count output) by the signal of one reference cam. 4.  A cumulative counter and a preset counter are built in to the system, which will allow you to perform more extensive management of quantity. 5.  SPM display is available.