Air balancing is the process of testing and adjusting an HVAC system to deliver the correct amount of air to each room of a building. The most common tool used in air balancing is an air flow hood, which measures the volume of air coming out of a diffuser in order to find areas of the...
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The monitoring of water levels in boreholes in a particular region is important for a water extraction company, as it allows the water extraction to be controlled across the area to keep the water table at a consistent level throughout. However, the widespread and remote nature of these boreholes means that the communication of these...
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Are you having problems with your current lift station level controls? Dwyer Instruments may just have the cost effective solution you need. In this article we will review several level sensing strategies, the advantages and disadvantages of each, as well as an option you may want to consider for your next project. Lift Station Basics...
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ASHRAE 62.1 Standard for Ventilation for Acceptable Indoor Air Quality provides recommendations for minimum ventilation rates and other parameters to ensure good indoor air quality (IAQ). Keeping the IAQ at a safe level will help to minimize any adverse health effects caused by air quality factors. The 62.1 standard is intended for both new building and...
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Stability is defined as a change (or lack of change) in accuracy over a period of time. Drift is commonly used as a specification to illustrate the stability, or change in accuracy over a period of time, commonly shown as X%/year where X = a number; i.e. 0.25%/year. In this scenario, a device with a...
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