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Press to move the octave frequency band marker during frequency analysis.
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Press to select and set items in various menu screens. Holding the buttons down will cause
faster scrolling.
FREQ WEIGHT TIME button
The FREQ WEIGHT selects the frequency weighting for the main channel. "A" weighting (A),
"C" weighting (C), and flat frequency response (Z).
The TIME WEIGHT selects the time weighting function for the main channel. (F, S, 10ms, I)
Fast: 125ms; Slow: 1000ms; 10ms; Impulse: 35ms
Note: The frequency and time weighting for the sub channel can be selected by accessing
the menu screen.
button (Backlight/Enter)
Backlight powers on the display backlight. Press the button again to turn backlight off.
When automatic Backlight Off function is selected from the menu screen, the backlight will
turn itself off automatically after the preset time.
Enter button will finalize a setting of an item in a menu or any other setting.
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