General Tools and Instruments DCFM8906 v.1 - Manual (Page 7)

MIN/MAX REC SINGLE-POINT
When pressed once, meter begins recording air speed at
a single point. Default display is average air speed
since recording began
Next press changes display to real-time air speed
Next two presses change display to minimum and
maximum air speeds since recording began
Next press returns display to average air speed
All possible display indications and their meanings
vel Upper reading is an air speed measurement
FLOW Upper reading is an airflow volume measurement
AREA Lit during entry of free area dimensions
Hold Upper and lower readouts are locked (frozen)
PH Reserved for future use
Knots Air speed unit equal to 1.85 km/hr (kmph) or 1.15
miles/hr (mph). An upper display unit option in both
Imperial and metric modes
ft/m Feet per minute. An upper display air speed unit in
Imperial mode
m/s Meters per second. An upper display air speed unit in
metric mode
mil/h Miles per hour (mph). An upper display air speed unit in
Imperial mode
km/h Kilometers per hour (kmph). An upper display air speed in
metric mode
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