Laser Radiation - HEDÜ M540 Manual De Uso

On / Off
With this button you start or switch off the device. If you start after
ON/OFF
battery change, the calibration will be started automatically.
Switch absolute 0° to relative 0°
Using this button effects a storage of any bevel as 0° reference.
C
Just lay the air-level on the desired bevel and press „C".
The symbol
Now is the relative measured value of the preassigned bevel
visible.
Repressing „C" let the level backspace to absolute 0°.
The symbol
Remark:
Everytime this symbol
in the absolute 0° mode.
Degree or percent
This button changes the unit of the measured value between degree and
M percent. DEG for degree or % for percent. You find the hint of the
arranged unit on the display in the upper edge.
„Freeze" a measured value
If you want to hold your value it is possible to „freeze" the displayed
result. After pushing the Hold-button an „H" will appear on display. After it
stops flashing the measured value has been „frozen".
HOLD
Anew push let the Hold-function end.

Laser radiation

Some air-levels are equiped with an 1mW laserpointer.
DO NOT STARE INTO BEAM
DO NOT USE ANY OPTICAL INSTRUMENTS TO
STARE INTO BEAM
4
disappears.
reappears.
is visible on the display the level is arranged
Laserclass II, 650 nm, 1mW.
>1/4s