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The Dwyer team recently released the latest model in our line of air velocity transmitters, the Series AVLV. This series is ideal for measuring low air velocity or volumetric air flow in applications such as: clean room systems, pharmaceutical buildings, variable air volume systems, and building ducts. Continue reading “[New Product Highlight] Air Velocity Transmitter | Series AVLV”
As 2019 comes to a close, the Dwyer team is keeping busy by preparing product demos for the upcoming year. We’re eagerly anticipating the 2020 AHR Expo, which will be held on February 3 through February 5 in Orlando, Florida. We’ll be at Booth #943, so be sure to look for us if you’re able to stop out! Continue reading “Visit Us at AHR Expo 2020”
The Model TBU-00 Temperature Transmitter is a high precision temperature transmitter. Its small size and weight allow it to easily mount in most temperature sensor instrument enclosures. The TBU-00 is ideal for process applications where a 4 to 20 mA signal is required, such as: food processing equipment, boiler equipment, and refrigeration equipment. Continue reading “How to Set Up and Use the Model TBU-00 Temperature Transmitter”
Picture this: You’re driving on the highway and push your car’s speed to the limit. Suddenly, a police officer pulls up behind you. Your heart races and stomach drops. You hold your breath as your eyes quickly dash to your car’s speedometer, double-checking your speed. Luckily, you aren’t going over the speed limit. Just as the butterflies in your stomach start to settle, red and blue lights start flashing behind you. You slow the car and come to a stop. The officer tells you that you were going far faster than you thought that you were. Turns out, your speedometer is out of calibration. Now, not only are you running late, but you also owe the state a couple hundred dollars.
If your speedometer isn’t calibrated properly, you risk fines, damage to your vehicle, and endangering those around you. You may face similar consequences if your instrumentation is not calibrated at a regularly established interval. You could be subject to disciplinary action from regulatory bodies, damage to your instrument or surrounding equipment, or even harming building occupants by using equipment that is out of specification. Continue reading “The Importance of Choosing An Accredited Calibration Laboratory”
Differential pressure measurement can be beneficial in a wide variety of building automation system (BAS) applications.
One of these applications involves determining if a filter in your system needs to be cleaned or replaced. Filter health can be established by monitoring the pressure on the primary and secondary sides of a filter. A clean filter will typically have a baseline differential pressure generated as air flows through it. As the filter becomes dirty, this differential pressure increases.
When using a mechanical flow sensor, such as a pitot tube, differential pressure can also be used to determine flow velocity and volumetric flow. Continue reading “Velocity Measurement and Environmental Effects”