4-4 Unit selection
During power on, press the " REC button "
continuously > 3 seconds, the Display will show the text
" Unit " release the " REC button ", then press " button "
to select the desired unit, after the desired unit
is sleeted, press the " REC button " to save the unit
with default.
REC button = Enter button
The selection unit for all function are :
Measurement
Unit
Air velocity
M/S, Km/h, mph, knot, FPM
Air flow
CMM, CFM
side, it is normal.
4-5 Air flow measurement
1)Power on, select the function to " Air flow measurement "
( refer to chapter 4-3 ), now the meter is ready for Air
flow measurement.
2)Set the measurement area dimension :
Press the " Hold button " once, the Display will show the
indicator " HOLD " then press the " REC button " continuously
until the left down bottom of Display show " m-2 "
or " F-2 "
m-2 = meter square
F-2 = ft square
5
