geo-FENNEL FIRT 800-Pocket, Руководство пользователя

Страница: 16 / 32

16
The distance:spot ratio is important for evaluation of the area
measured. The larger the distance from the object the larger the
area measured. Switch on the laser pointer for increasing target
accuracy.
Note:
The target must be larger than the instrument’s spot size. The
smaller the target the shorter the distance should be.
OPERATION
Switch instrument on/off
Pull the measuring trigger to switch instrument on. After 7 seconds
it automatically switches off if no other key has been used. There is
no special key to switch off the instrument.
Carrying out measurements
Hold the instrument by its handle and point towards the area to be
measured. Pull and hold the trigger to turn the instrument on and
carry out measuring process. Release the trigger and HOLD will be
displayed indicating that reading is held for about 7 seconds. If no
other button is used instrument will automatically switch off after 7
seconds.
Laser pointer
For exact targeting the area to be measured switch on laser pointer
with
▲ button during HOLD mode. The laser icon will be displayed.
Please take care to the explanations given regarding Distance:
Spot-Ratio.
Illumination
In bad light conditions the illumination can be switched on with
▼button duri ng HOLD mode.