Statistics predict that about half grill owners will be firing them up this upcoming Memorial Day weekend [i]. Let’s look over a propane grill, as if we had just pulled it out for the grilling season, for some tips and red flags. Not beef tips or how to get the perfect sear on your steak – safety tips! Besides hot surfaces, a gas grill serves up hazards related to flammable gases: fires, explosions, and flash fires. (more…)
Many modern machines and processes are controlled by Programmable Logic Controllers (PLC’s). PLC’s are essentially computers that have the ability, properly connected and programmed, to interface with the outside world and control the actions of a machine like a robot or conveyor. The PLC has a processor for processing the user programmed logic, and also has input / output (I/O) wiring provisions for both analog (e.g. temperatures and pressure transducers) and digital (e.g. limit switches and indicator lights) devices. (more…)
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