Making Measurements; Air Velocity Measurements; Air Flow Measurements - Fluke 925 User Manual

MAKING MEASUREMENTS

Air Velocity Measurements

Air velocity and temperature measurements can be displayed on this meter
in the following units of measure: ft/m (feet per minute) or m/s (meters per
second) for air velocity and °F or °C for temperature.
1. Connect the sensor to the sensor input jack on top of the meter.
2. Turn on the meter using the  button.
3. The 'Vel' indicator should appear on the upper left on the LCD. If not, press
and hold the MODE button until a beep is heard. Repeat this procedure
until 'Vel' appears on the display.
4. Place the sensor in the air current to be measured.
5. View the air velocity and temperature readings on the LCD Display. The
upper display shows the air velocity reading. The lower display shows
the temperature.

Air Flow Measurements

In order to take air flow measurements, the area of the duct under test (in
ft 2 or m 2 ) must first be determined (check with the duct manufacturer if
necessary). Once the area is known, enter the value as follows:
1. Turn on the meter with the  button.
2. Press and hold the FUNC button until a beep is heard. "AREA" appears
on the display and one digit will be blinking indicating that value can be
changed.
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