5
Chapter 3
Operation
Keypad Functions
ON/OFF Key
Press to turn the Alnor AVM410/A
IRFLOW
TA410
on and off. During the power up sequence the
display will show the following: Model Number,
Serial Number, Software Revision, and Last Date
Calibrated.
ft/min / m/s Key
Pressing this key changes the display to read air
velocity.
°C / °F Key
Pressing this key changes the display to read
temperature.
Changing Units
To change units, first put the desired measurement
(air velocity or temperature) on the display. Then
press and hold the left, unlabelled key for five
seconds. Finally, use the
ST
and ENTER key to
select the units.