Airflow measurement device selection is critical to the performance of today s state of the art hvac control systems as accuracy and repeatability can vary dramatically between instruments.
Air flow measurement devices.
Airflow instruments are accurate high quality professional grade instruments used by a wide range of customers including building service contractors commissioning specialists facility engineers and research professionals.
Differential pressure based airflow measuring products use an array of air pressure pick ups to compare the total pressure going through the airflow station with the static pressure in the station or pressure drop across a calibrated orifice fan inlet venturi.
When selecting airflow measurement devices be knowledgeable of the many variables such as air velocity temperature humidity absolute pressure and dew point.
The grid lines which lay out the duct flow measurement points are traverses.
Many of the requirements and limitations of one measurement technology however often are thought to apply to all.
Wireless measurement of pressure air velocity air flow temperature and humidity combine wireless gateway with various compatible probes and modules up to 50 foot range uhh2 includes mobile meter app to combine all readings into one device.
Round ducts log linear traverse for round ducts two diameter approach.
The log linear method provides high accuracy 3 in flow totalization by measuring air flow closest the edges of the duct space preferentially.