Maas AHT-9-UV User Manual page 38

7) LED Display Mode (LED---MENU 7)
Function: select the LED/Keypad Lamp mode.
Enter Menu 7
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ON: LED display lights all the time.
AUTO: Illuminates the LED when any key is pressed and after 3s the light is off.
OFF: Disable the LED lamp.
8) Background Light Collor (LIGHT---MENU 8)
Functions: choose LED background light color.
Enter Menu 8
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COLOR1: Purple.
COLOR2: Blue.
COLOR3: Orange.
9) Keypad Beeper setting (BEEP---MENU 9)
Functions: enable/disable the keypad beeper.
Enter Menu 9
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10) Automatic Number Identity (ANI---MENU 10)
Functions: sending ID code when AHT-9-UV transmits, the others can receive it directly
on the display if they also have ANI function.
Enter Menu 10
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to select LED display mode. Default: AUTO.
to select background light collor. Default: COLOR1.
to set keypad beeper. Default: ON.
to set ANI. Default: OFF.
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