General Tools and Instruments DCFM8906 v.1 - Manual (Page 6)

MODE VELOCITY FREE AREA FLOW
When pressed, places meter in airflow volume
measurement mode
Used with HOLD and AVERAGE buttons to enter free
area dimensions
AVERAGE MULTI-POINT
When pressed, calculates and displays average of
stored air speed measurements for up to eight points
Used with HOLD and MODE buttons to enter free area
dimensions in airflow volume measurement mode
When pressed with ON-OFF RESET button, resets default
air speed and temperature units
HOLD
When pressed, holds (freezes) upper display reading
Used with MODE and AVERAGE buttons to enter free
area dimensions in airflow measurement mode
When pressed with ON-OFF RESET button, disables auto
power off function
SEL: MPH KNOTS
In Imperial units mode, cycles through mil/h (mph), knots
and ft/m default settings
In metric units mode, cycles through km/h, knots, and
m/s default settings
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