White’s Electronics Matrix 100 - Color - Manual (Page 10)

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Volume Control for the Earbud
The unit is preset, at the factory, to medium earbud volume. Adjustments to
volume must be made in audio mode. Press the volume control to cycle through
the volume levels of low, medium, or high.* The unit will beep or vibrate and
will flash the red visual indicator LED to announce the new volume level:
One beep/one flash = low volume
Two beeps/two flashes = medium volume
Three beeps/three flashes = high volume
When the earbud is plugged into the scanner, the audio speaker is deactivated.
When the unit is turned off or the battery is removed, the ear bud volume level
setting is retained in the memory.
Testing the Scanner
• Turn on the scanner in the “ON Audio” or “ON Vibrate” mode.
• Pass the scanner over a metal test object to ensure the LED, audio alarm, or
the vibrate alarm are functioning properly. If the battery is fresh or recently
recharged (more than 7V), the LED next to the ON/OFF button will produce
a green light (see Page 8). If the battery is discharged to less than 7V, the
LED will produce a yellow light and it is recommended that you replace the
battery.
Earbud volume
Sensitivity
Stylus
* To be determined by administration policy and supervisor control.