5
Chapter 3
Operation
Keypad Functions
ON/OFF Key
Press to turn the Model 9515 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
and
ENTER
key to select the units.
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