... relay suck and time.Setting:1.Put through power supply, digital tube first show 0, said to accept currency in ... 2.According to one MODE l (MODE) key, digital tube first (from left to right) show C, said the ... seconds.4.According to third MODE (MODE) key, digital tube first show F, says in the number of set ... 5.According to the fourth MODE (MODE) key, digital tube first show H, said in the set delay hours, ...