Profile: Greentronics designs and manufactures electronic control products. Our conveyor scale computes the accumulated weight of products that passes over the conveyor. It also measures the speed of the conveyor drive shaft, thereby taking into account any variations in conveyor speed. Our scale displays and saves the data for individual loads. Our belt slip monitor works by constantly monitoring the speed of the drive shafts and idler rollers. It calculates the ratio of speeds and sounds an alarm if the ratio drops by more than a certain percentage. When the controller sounds its alarm, it displays a message indicating which web is stopped or slipping.