Dwyer Instruments, Inc. has solidified its presence in many markets and our versatility has allowed for our products to be implemented in a multitude of applications. Original equipment manufacturers and end users alike have been able to automate many processes that would otherwise be quite demanding and time consuming; one of which being home brewing! Home brewing and craft beers seem to be a growing trend across the country in recent years. With people developing an interest in creating a beer to their personal liking, many have found themselves dabbling in the world of home brewing. With a few ingredients, adequate equipment, and some patience, you can find yourself enjoying a Taylor-made beer!
Something New is Brewing!
We met with an original equipment manufacturer (OEM) last year, who was working on a new design for rooftop air handling equipment. Part of the their design utilized water flow for cooling in a loop.
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. 
ratings is important, particularly when looking to gain the optimum life from your product while avoiding any safety concerns. Included below is a straight forward easy to understand overview of enclosure ratings, including NEMA types, IP ratings, and the difference between the two. We will be looking at these two common standards for industrial enclosures, what they equate to, some alternatives, and how to best choose the right one for your application.