Sper scientific 850026, Manual, Page: 10 / 16

10
Air flow measurement
1. With the Power on, select Air flow mode
(refer to page 9)
2. Set the measurement area dimension:
Press Hold once, the display will show HOLD
then press REC continuously until the lower left
of the Display shows m-2 or F-2
m-2 = meter square
F-2 = ft square
The unit of measure is determined by the
selected scale CMM or CFM
3. Use Hold and to adjust the air flow dimension
value. When the desired dimension value is set,
press REC to save as the default.
button = ▲button
Hold button = ▼ button
REC button = Enter button
Hold Function
Pressing Hold will freeze the current reading on the
display. The HOLD symbol will be displayed at the top
of the display window.
To release the Hold function, press Hold again, the
HOLD indicator will disappear and the current reading
will be displayed.