Testboy TV 350 Manuel D'utilisation page 21

Operating instructions
Switching On/Off
Actuate the " " button to switch the anemometer on or off.
Determining the measured value
To continue displaying the result of the measuring procedure, actuate the "HOLD" button and
display the HOLD symbol. Press the button again to end the display.
Please note:
Once the measured value has been determined, the "FUNC", "MAX/MIN" and "UNIT" buttons do
not have a function.
Backlighting
If the ambient illumination is too weak to read off the measured value, press the "
activate the backlighting. The backlighting remains active for 15 seconds. During this period, you
can actuate the "
Please note:
The backlighting consists of a LED with a high operating current. Often use shortens the
service life of the battery. Only use the backlighting when required.
When the battery voltage ≤ 7 V the "
When using a battery voltage for the backlighting which is ≥ 7 V the high current draw
can cause the voltage to fall; the "
bol is displayed, it is not possible to guarantee an exact measurement). In this case, re-
place the battery only if the "
Wind speed measurement
Position the converter (rotor) in the test environment. Display of "VEL" means that the measure-
ment can be performed with the rotor surface at right-angles to the wind direction.
Please note:
if the converter (rotor) doe not point into the direction of the wind, this will result in measurement
errors.
With equal wind, the converter (rotor) best measures when it is aligned with the wind.
®
Testboy TV 350
" button to switch off the backlighting.
" symbol appears during normal use without backlighting.
" symbol is displayed (battery voltage low).
" symbol could be displayed (if the "
Operating instructions
" button to
" sym-
21