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Dwyer vs COVID-19 | Monitoring Air Flow & Pressure in Hospitals

Dwyer is committed to aiding in the fight against COVID-19. We have several products that are used in hospitals and the production of ventilators. Ventilators are used to aid COVID-19 patients who have low oxygen levels, support their breathing, and bring oxygen levels to a safe range.

Isolation Room Application

In addition, isolation rooms need to remain at specific pressures and air cycles, so as to not risk exposure of airborne contagions to other patients or healthcare professionals during treatment. Today we’ll be discussing some of the products that Dwyer manufactures that are used in these applications. Continue reading “Dwyer vs COVID-19 | Monitoring Air Flow & Pressure in Hospitals”

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Calibration Control Standards

SMART Air Hood® Balancing Instrument, Series SAH

Purchasing measurement and test equipment, such as the Series SAH SMART Air Hood® balancing instrument, in bulk or batches allows you to have a back up when the equipment you regularly use needs to be serviced, thus preventing down time. In some cases, purchasing large quantities of the exact same make and model may give users the idea that the performance of each unit can be checked by comparing one to another. Although direct comparison of similar units may be good to identify operational defects, direct comparison of units with the exact same make and model from the exact same batch / date code does not allow for detection of potential systematic errors in your product’s performance. Continue reading “Calibration Control Standards”

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Introducing the New App for the SMART Air Hood® Balancing Instrument

The Dwyer team is proud to announce the new app for the SMART Air Hood® balancing instrument. This app replaces the PredictAir™ application software, and ensures that connecting to your hood and balancing a building is now easier than ever!

The automated connection process within the app will prompt you to connect the SMART Air Hood® balancing instrument the first time you open it. Continue reading “Introducing the New App for the SMART Air Hood® Balancing Instrument”

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The Importance of Choosing An Accredited Calibration Laboratory

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”

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Velocity Measurement and Environmental Effects

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”