General Tools and Instruments DCFM8906 v.1 - Manual (Page 3)

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INTRODUCTION
Thank you for purchasing General Tools & Instruments’
DCFM8906 Digital One Piece Airflow Meter with CFM Display.
Please read this user’s manual carefully and thoroughly before
using the instrument.
The DCFM8906 is a professional-grade vane anemometer that
can not only measure air speeds exiting an HVAC/R system’s or
blower’s grille or register, but also convert those readings to
airflow volume measurements. The conversions are possible
because the meter makes it easy for an installer or repairman to
enter the free area dimensions of his system’s output ductwork.
The meter can record air speed readings at one point or multiple
points for up to two hours and convert those readings into
displays of average, minimum and maximum air speed or airflow
volume. The unit can hold measurements made in the dark for
later viewing in a brighter area. It also measures ambient air
temperature and displays it simultaneously with air speed or
airflow volume on a large front-panel LCD.
The DCFM8906 can display its air speed and airflow volume
measurements in Imperial or metric units and its temperature
measurements in degrees Fahrenheit or Celsius. A 20-minute
auto power off function (which can be disabled to enable long-
term recordings of air speed) helps extend battery life.
The DCFM8906 is powered by one 9V battery (included).