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LCD Display Contrast & Back-light.
The LCD display Contrast is adjustable by front keyboard.
Repetitive strikes of “Right” key would increase the contrast
Repetitive strikes of “Left” key would reduce the contrast of
LCD display.
LCD
– Background visibility light (Back-light) is turned on during Power
Up of TPF-56.
Any key on the Keypad pressed once, will turn on the Back-light of LCD
display.
Any non-activity on the keyboard for more than 1 Minute would turn off
the back-light of LCD display.
Intelligent Power Factor Controller TPF-56
22 of 56 Version 1.1.5 22
nd
March, 2016