4. OPERATION
Operation
Select the desired units
for air velocity and temperature by
momentarily pressing
the UNITS/MODE key from a powered down
condition. The LCD will show temperature units (
o
C or
o
F) and Air
Velocity units. Press the UNITS/MODE key repeatedly until the desired
units are displaying. When finished, press the ON/OFF/HOLD key
momentarily to restart the meter with the desired units.
Power the meter
by pressing the ON/OFF/HOLD key momentarily.
The Dual
Display will illuminate. The top (larger) display indicates
air speed and the lower display indicates temperature.
Position the meter
so that the measured airflow enters the meter
vane from the
rear
of the meter (opposite side from the front panel
logo, part number, etc.).
Activate Data Hold
(to freeze the most recent display), by pressing
and holding
the ON/OFF/HOLD key while taking measurements. To
return to normal operation, release the key and restart the meter.
Max operation
: After a measurement session, press and hold the
UNITS / MODE
key until the MAX icon appears on the lower left-hand
side of the LCD. Both the Air Velocity and Temperature indication will
represent the highest readings measured since the meter was last
powered.
Average mode operation
: Normally the meter averages readings
every 2
seconds. To select 5, 10 or 13 second averaging, first press
and hold the UNITS/MODE key until the MAX icon appears. Next,
press the key again momentarily and the AVG icon will appear. The
13 second average mode is selected. Now press the key again and
the number 5 will appear. Leave it there if an average of 5 seconds is
desired. Press the key once more for a 10 second average mode. To
return to normal operation press the UNITS/MODE key repeatedly
until all lower left-hand icons disappear.
Wind chill indicator
: Press and hold the UNITS/MODE key until the
MAX icon
appears. Press the key repeatedly until the WCI icon
appears. The temperature display will now factor in the wind chill. To
return to normal operation, press the UNITS/MODE key again and
the WCI icon will disappear.