3.2 Presentation of the screen-keyboard group
The screen/keyboard group gives to the instrument a modern ergonomy. It mainly participates to the quick
familiarization of the sound level meter.
A press, a touch or a very light finger slipped on keyboard icon is enough to trigger the corresponding action of
the sensitive key.
The measurement configuration is made by moving a reversed video cursor in reserved areas, then by
choosing the concerned parameter or function.
For instance :
• Time weighting choice : Slow, fast or Impulse.
• Frequency weighting choice : A, C or Z.
• Measurement mode choice : L, L-St, L-Leq or Leq-St.
Reserved areas appear according to two 3D type formats :
• Inner shadow to the frame : simulates a shifted back area in which parameters can be modified or displayed
measurement results.
• External shadow to the frame : simulates a shifted forward area in which different propositions of the menu
can be chosen to go to an other configuration or validation screen.
7 Presentation of the sound level meter
A push on each arrow moves the cursor on the horizontal left-right axis.
A push on each arrow moves the cursor on the vertical up-down axis.
scrolling knob key : increases or decreases suggestions in the area according the principle of front or back circular
permutation. The finger must slide from an arrow to the other one, simulating a scroll wheel action.
From the bottom to the top to increase or from the bottom to the top to back to the previous proposal.
Validate a suggestion or an action to lead present in an outer shaded frame.
Go to the main menu to return to the previous screen.
Exit a menu screen to return to the previous screen.
Launch a measurement, then pause it if necessary .
Finally stop measurement
Enable-disable the backlight.
On-Off
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