求翻译：note: there must be a minimum of 0.5 inches between each of setpoint and alarm . for example,if the low level alarm is set to be 4.0 inches , then the low level setpoint would have to be set at least 4.5 inches . the low level alarm can be set to a minimum value of 3.0 inches and the high leel alarm can be set to a max是什么意思？

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