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1.4 Automatic memory function
The intelligent control board calculates the use time of the filter element and stores the
related data in the internal memory. Automatically stored once every period of time, the
system will not be lost when the power is off; when the system is powered on again, the
control board continues the previous processing.
1.5 Buzzerfunction
Each time the button is operated, the buzzer beeps once;
When the life is less than or equal to 15 days, the buzzer will beep every 3 hours, 3 short
beeps, and each beep interval is 5 seconds;
1.6 Key operation functions
The service life of each filter element can be set. After power on, the LCD enters the
normal display interface, as shown in the figure below. Under this interface, press and hold
for 3 seconds press the key to enter the life setting interface. By default, it starts with the first
digit of the first level, that is, "A" and the first digit flash.
1.6.2 Life reset function:
When the life of the filter element has expired, after the replacement of t he filter
element, it is necessary to reset the life of the filter element on the intelligent control board.
In the normal display interface, press and hold the button for 8 seconds to enter
the life initialization interface. Both the digital value of the filter life and the number of filter
stages are displayed.
Under this interface:
Press the button once to select the number of filter element stages to be initialized
Press and hold the button for 3 seconds to initialize the current filter life;
Remarks:
In the life reset interface, if no key is pressed within 20 seconds, it will automatically exit the
life reset interface and return to the main interface.
1. 7 Backlit display function
When the key is pressed, the backlight screen turns on. After the key is released for 20
seconds, the backlight screen goes out. When the backlight is on, the displayed color is:
When the remaining life of the filter element is greater than 15 days,
the backlight screen displays blue;
When the remaining life of the filter element is 15 days or less, the backlight screen displays red;
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