Calibration is the comparison and adjustment of a reading from an instrument in correlation with the reading of a higher accuracy piece of equipment. The overall goal of this process is to minimize measurement uncertainty and ensure the accuracy of an instrument. The accuracy of instrumentation can degrade over time. This is caused by wear and...
Explore now
Heating, ventilation and air-conditioning filters, along with other strategies, help to reduce the transmission of SARS-CoV-2, the virus that causes COVID-19, while removing other air contaminants that may have health effects. That’s according to ASHRAE, which has reacted to what it called “widening false statements surrounding HVAC systems.” “ASHRAE officially opposes the advice not to...
Explore now
Question: I am trying to measure building pressure relative to outside air pressure. However, in doing so, I am seeing fluctuations in the differential pressure readings. Is there any way to minimize or eliminate these fluctuations? Answer: Whenever you are using outside air for a static pressure reference, fluctuations in outside conditions, especially from wind, can cause...
Explore now
Question: Can the Flotect® Vane-Operated Flow Switch, Series V4, be installed in a vertical pipe run? Answer: The standard Series V4 Flotect® Vane-Operated Flow Switch is designed to be installed vertically, within 5° of vertical, on a horizontal pipe run. However, the Series V4 can be ordered for horizontal installation on vertical pipe runs, using the...
Explore now
Air pollution in urban areas is nothing new. You can see it, smell it, and often even feel it. Common sources: Industrial and coal-fired power plant emissions Internal combustion engine exhaust Exhaust from wood burning stoves, fireplaces All of these contribute to increased particulate matter, pollutants, and allergens in the air. We are often told...
Explore now
