RKI Instruments Beacon 110 - Manual (Page 11)

Beacon 110 Operator’s Manual 7
Figure 2: Control PCB Component Location
LCD Display
The LCD display is located at the top of the control PCB. It indicates the current gas
reading and displays messages and parameters in the Beacon 110’s operating modes.
Contrast Potentiometer
The contrast potentiometer is located to the right of the LCD display. It is used to adjust
the contrast of the LCD. If the background of the LCD appears so dark that the characters
are not visible or if the characters are too dim, turn the adjustment screw on the
potentiometer clockwise or counterclockwise until the desired visibility is obtained.
Control Buttons
The Beacon 110 includes three push button switches that allow you to enter the Beacon
110’s operating modes, navigate through the modes, update settings, and save changes
to the settings. The push button switches are located along the bottom edge of the control
PCB (see Figure 2). The UP/YES button is on the left, the DOWN/NO button is in the
middle, and the ENTER button is on the right.
Table 4: Beacon 110 Control Button Functions
Switch Function
UP/YES • Saves settings
• Changes the displayed setting
• Enters Calibration Mode
• Enters Input Mode (press with DOWN/NO button)
• Enters Configuration Mode (press with ENTER button)
DOWN/NO • Cancels setting changes
• Changes the displayed setting
• Enters Input Mode (press with UP/YES button)
• Displays the Information Screen
UP/YES DOWN/NO ENTER
F A1 A2
Control Switches
Fail LED
Alarm 1 LED
Alarm 2 LED
LCD Display
Contrast
Potentiometer