Air flow pressure switches and differential pressure switches work just like the light switches we have in our living rooms at home: when they are switched on, the switch makes contact, closes the circuit, and turns on. When they are switched off, the circuit is broken and power turns off. With air flow switches, instead of being manually switched, the air flow switch closes or opens the contact by reacting to changes in the air pressure at a pre-set actuation point, and turns on and off accordingly. These air pressure switches may be used to start/stop motors or fans, open/close dampers or louvers, sound alarms, and more. Continue reading “Let’s Chat About Air Pressure Switches!”
Making Sense of Sensing Pressure
As discussed in previous articles and videos, pressure is the amount of force acting on a specific area and is equal to the force divided by the area. There are several types of sensing elements used inside pressure measurement devices. By understanding the components that make these products function and carefully comparing their specifications with your application requirements, you ensure the correct instrumentation is being used for your application. Today we’ll be discussing the functions of diaphragms and Bourdon tubes. Continue reading “Making Sense of Sensing Pressure”