Amprobe TMA-21HW Hot-Wire-Anemometer - Manual (Page 20)

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• Push “” or “” key to select “ ” or “ ”, if select “ ” then
push “↵” key will reset to factory default calibration value and exit
setting mode.
Air Velocity Measurement
• Push key to turn on the meter.
• The display will show the air velocity reading directly on the Air Velocity
Display.
• Push “ H HOLD” key to freeze or unfreeze the display readings. In
HOLD mode, the “ H ” symbol is displayed and push “VEL %RH” key to
circulate the display of the other reading.
Air Flow Measurement
AIR FLOW = (AIR VELOCITY) x (AREA)
• Push key to turn on the meter.
• The display will show the air velocity reading directly on the air velocity
display.
• The flow type setting is displayed on the flow set up display.
• Push “FLOW” key to select the desired 2/3V MAX mode, AVG mode or
current mode.
If 2/3V MAX mode is chosen, the “2/3V MAX” symbol will displayed. The
meter will use the maximum air velocity value obtained to determine the
2/3V MAX Air Flow.
If average mode is chosen, the “AVG” symbol will displayed. The meter
use air velocity average value (the last 30 samples) obtained to determine
the Average Air Flow.
If current mode is chosen, no symbol will displayed. The meter will use
the current air velocity value obtained to determine the Current Air Flow.
• The display will show the air flow reading directly on the Air Flow Display.
Humidity and Temperature Measurement
• Push key to turn on the meter.