10-04-2017, 09:11 PM
in this project PLC is used to control the flow of lubricating oil at specified level , this can be done to on bearing, journals and other engine part by installing a transducer near to it , automatically controlling the lubrication of a bearing can be performed either by a stationary installed vibration servo or by measuring the real amount of grease being fed into the bearing . The figure shows a flow transducer unit installed directly in to the grease point. The unit closes/opens a switch which can be used to monitor the real grease flow. Each dosage from the automatic system will be measured by the transducer; and when the difference is larger than specified, an alarm will be energized by a PLC to get better accuracy