Operation; Procedure For Measuring Velocity With Low Flow Probe; Velocities At Suction Openings-Except Diffusers Or Grilles; At Grinding Or Buffing Wheels - Alnor Velometer 6000 Serie Manual De Uso

10
After assembling the correct probe to the Velometer as shown on pages
7–9 you are ready to take the necessary measurements. Below are some
typical applications and cautions when using the various probes. When
using the Velometer for measuring air velocity at conditions other than
3
.075 lbm/ft refer to the correction chart on page 19 for maximum
accuracy.

Procedure for Measuring Velocity with Low Flow Probe

1. Place the meter where you wish to measure the air flow. If you are
holding it, keep it at arm's length and stand so you do not obstruct
the flow of air past the meter.
2. Hold the meter so that the arrow on the probe points in the direction
of air flow; if the direction is not known, turn the meter until you
observe the maximum pointer deflection.
3. Read the air velocity on the 0 to 300 FPM scale.
4. Record the reading on an appropriate air balancing worksheet.
Velocities at Suction Openings—Except Diffusers or
Grilles

At Grinding or Buffing Wheels:

When measuring velocities at grinding or buffing wheels, use the
Pitot Probe or the Low Flow Probe. The head of the probe should be
held in a plane defined by the outside edge of the hood.

At Spray Booths:

When measuring the velocity at spray booths, use the Low Flow
Probe. The head of the probe should be placed in a plane defined by
the outside edge of the spray booth.

Velocities at Plating Tanks:

To measure the velocity at plating tanks, use the Pitot Probe. The
probe should be held close to the exhaust port of the tank, with the
arrow on the probe pointing toward the exhaust port.

OPERATION