Hot-wire anemometers are often used in a hospital environment to measure and maintain room pressurization/de-pressurization. These applications require a positive pressure in operating rooms where bacteria cannot be allowed to enter, or a negative pressure in a quarantine environment to ensure that all bacteria will stay within the room. Continue reading “Hospitals: The Hot-Wired Anemometers That Keep Them Running Properly”
Threaded connections are often referred to as a process connection type. For Dwyer product specifications, this connection type is typically NPT (National Pipe Thread), which is an American standard thread. These connections allow products to be installed directly into piping or with the use of threaded fittings.
For threaded connections there are two common types, (1) straight or parallel thread and (2) tapered thread. Continue reading “U.S. and International Threaded Connection Standards”
Question: Can the Magnehelic® Differential Pressure Gage handle a temperature of -10°F? Continue reading “Ask the Expert – Magnehelic® Gage with Low Temperature Option”
Humidity sensors are one of the most common types of sensors used for HVAC equipment and building management systems. With proper humidity monitoring, energy efficiency of a building can be improved. By using environmental conditions in conjunction with an economizer to reduce the building load, cool outside air is used to cool the indoor space of a building. Dampers, humidity sensors, and temperature sensors are used to verify optimal outdoor conditions for maximizing energy cost savings. Continue reading “Capacitance Polymer Humidity Sensors”
Intermediate relays are crucial in the proper function and operation of several varieties of power equipment, be it in mobile refrigeration or a simple pump application. But what are intermediate relays, and how are they implemented? Continue reading “What Are Intermediate Relays and How Are They Implemented?”