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Chapter 5 Microprocessor Control
Chapter 5 Microprocessor Control
The microprocessor control features an easy-to-use menu-driven LCD display. It
monitors and displays the operation status of the precision cooling unit to maintain
a reasonable environment in the controlled room. The menus, control features and
parameter settings are described in this chapter.
5.1 LCD Screen
LCD screen displays English menus with blue backlight. It displays temperature
and relative humidity readings, operating mode (cool, heat, dehumidify, humidify),
alarm information, current date and time, as shown in Figure 5-1.
Users can browse more detailed information such as the operation status of a
certain part and alarm information by activating the sub-menus in the main menu
screen. The selected item will highlight in a menu. The digit to be changed will
highlight when a parameter is being changed.
5.2 Control Buttons
There are nine control buttons on the keypad, namely Up, Down, Left, Right, Enter,
Esc, ON/OFF, Mute, and Help buttons, as shown in Figure 5-2.
2 8
5 0 % r h
H i g h
2 0 0 4 / 0 1 / 0 1 0 0 : 0 0
Figure 5-1 LCD screen
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