Procedure For Measuring Static Pressure; Procedure For Air Flow Measurement In Ducts - Alnor Velometer 6000 Serie Mode D'emploi
Le vélomètre tsi permet de lire directement les vitesses de mouvements de l'air dans les conduits d'air chaud ou d'aération ou dans les espaces ouverts tels que grilles, diffuseurs, hottes, réservoirs ventilés, etc. on peut aussi y mesurer les pressions s
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Procedure for Measuring Static Pressure
1. Select the location for the static pressure reading and drill a ¼" hole.
You may wish to paint a circle around the hole and number it for
future convenience.
2. Assemble the Velometer for positive (or negative) readings as
described above.
3. Place the rubber cup of the probe firmly over the hole, and read the
static pressure on the black or red "Inches of Water Gauge" scale.
4. Record the reading on an appropriate air balancing worksheet.
Procedure for Air Flow Measurement in Ducts
To calculate the air volume passing through a duct, measure the average
velocity inside the duct, determine the cross-sectional area of the duct,
and apply the following equation:
Q = A x V
Where
Q = Volume flow rate
A = Cross-section area
V = Average duct velocity
English Units
Metric Units
3
3
ft
/min
m
2
2
ft
m
ft/min
m/s
/s
13
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