RoHS stands for the Restriction of Hazardous Substances in electrical and electronic equipment. RoHS, also known as Directive 2002/95/EC, originated in the European Union and restricts the use of specific hazardous materials, and impacts a wide array of products in the electronics industry. Continue reading “What is RoHS?”
A dust collector is a system used to improve the quality of air within an industrial and commercial environment by collecting dust and other impurities from the air. Continue reading “Maintain Continuous Operation from Leaking Pulse-Jet Bag Filters”
When considering a product for a hazardous location, it is important that the product is appropriately rated for that environment. UL, one of the primary bodies that certifies products for use in hazardous environments, defines a hazardous location as a “location where explosion or fire hazards exist due to the presence of flammable gases, flammable or combustible liquid-produced vapors, combustible dusts, or ignitable fibers or flyings.” Figure 1 shows the conditions that are required to create fire and are often present in hazardous environments: oxygen, an ignition source, and flammable material. Continue reading “Intrinsically Safe Products for Hazardous Locations”
Question: I am choosing an insertion level switch to help me monitor levels in a tank. What are the main differences between the products in the Flotect® switch family? Continue reading “Ask the Expert – What are the differences between the products in the Flotect® switch family?”
Many Dwyer Instruments, Inc. switch products have standard snap-action switches. Snap-action switches have a mechanical movement that snaps the contacts together and apart to make or break an electrical circuit.
Silver contact snap switches are very versatile and offer high contact ratings commonly up to 10 or 15 amps when used with 120 volts AC. These switches are often used for control circuits with heavier load requirements such as pumps, motors, fans, and incandescent light bulbs. Continue reading “Use of Gold Contact Snap-Action Switches”