Full Product Manual

Press the SET button as many

times as necessary until the air

speed unit you prefer appears,

flashing, on the right side of the

upper readout. To save this unit,

press the UNIT button. The figure

at right shows the five available

air speed units in their selection

sequence.

When you press the UNIT button

to save your preferred air speed unit, °F—the DAF3009’s factory

default temperature measurement unit—will begin flashing on the

right side of the lower readout. To keep °F as the temperature

measurement unit, begin by pressing the UNIT button. This will

cause °F to stop flashing and the meter to resume displaying real-

time air speed and temperature measurements. To change the

temperature unit to °C, press the SET button, followed by the

UNIT button to save the selection.

The DAF3009 will “remember” the air speed and temperature

units (as well as its operating mode and other selected units and

parameters) in use each time it powers off and will resume

operating in that mode and with those units upon restart. So if

you always use ft/m and °F for air speed and temperature

measurements, you need not perform any of the above steps. And

if you always use the same air speed and temperature units (other

than ft/m and °F), you need only perform the above procedure

once. Unlike many instruments, changing the battery does not

reset all units to their factory default.

As mentioned earlier, the DAF3009 automatically begins

measuring and displaying ambient temperature upon startup.

To display other temperatures whose calculation includes the

effect of wind speed or humidity (Wind Chill Index, or Wet Bulb

and Dew Point temperatures, respectively), begin by pressing the