Manufacturing Excellence Since 1931
Question: I have had difficulty reliably measuring the level in lift stations and was wondering what you have for such an application? Continue reading “Ask the Expert – Measuring Wastewater Level with a PBLT2 Submersible Level Transmitter”
Many Dwyer Instruments, Inc. products have enclosures that are designed to be rated weatherproof, dust-proof, or even submersible. There are two main rating codes for enclosure protection classification: NEMA and IEC.
In the United States, the National Electrical Manufacturers Association (NEMA) has publication 250-2003, Enclosures for Electrical Equipment, that is commonly used for ratings. Underwriters Laboratories (UL) has similar ratings to the NEMA ratings. Meeting a NEMA rating on a product can be self-declared by the manufacturer based on product testing; whereas having UL approval to the rating requires testing by UL for proof that the product meets the standard. Continue reading “Enclosure Ratings for Personal Protection and Dust/ Water Ingress Protection”
Even before the AHR Expo officially opened to general attendees on January 22nd, guests of Dwyer Instruments were part of a highly anticipated release and demonstration of the Insertion Electromagnetic Flow Transmitter at the company’s booth. More than a dozen individuals from the HVAC industry experienced the features and benefits of this new magmeter firsthand. Continue reading “Dwyer Releases the New Insertion Electromagnetic Flow Transmitter at AHR Expo 2018”
With the release of the Insertion Electromagnetic Flow Transmitter, Dwyer Instruments, Inc. provides performance, accuracy, and reliability with same day field configurability.
Previously, insertion flow transmitters on the market did not offer much flexibility to configure products in the field. Dwyer addressed these concerns, delivering a solution with their new unit. Continue reading “There’s No Time for Downtime | Insertion Electromagnetic Flow Transmitter”
Dwyer Instruments offers many electrical switch products that make or break a contact based on sensing a parameter such as pressure, temperature, level, and so on.
Most switches are single pole double throw, often referred to as SPDT. This type of switch has one normally open contact and one normally closed contact. Switches can also be double pole double throw, or DPDT, that have two normally open and two normally closed contacts. Single pole single throw switches with just one contact are also available and are specified to be either normally open or normally closed.
Continue reading “What is Deadband? Switch Actuation and Deactuation”