7
SECTION 4
Detailed Operation
Press the ON\OFF key to turn the
RVA801/LCA301 on and off. When the
instrument is turned on, it will power up in the
mode last used.
English/Metric Unit Selection
RVA801/LCA301 instruments can display
Metric or Imperial units. To select metric or
imperial units, press the Mode key while
turning on the unit. Then press the trigger to
select the unit type and press the Mode key
again to save your setting.
Measuring Air Velocity
Select velocity using the MODE key if required.
In order to take a velocity reading, hold the
rotating vane in the airstream noting the flow
direction arrow on the instrument head. Keep
the vane in the airstream for about five seconds
before pressing the trigger key to take a reading.
This enables the vane anemometer to reach
steady speed and the average reading will be
more accurate.
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