Omron HBP-1120 Manual De Instrucciones página 19

Zero Indicator Function
Before each measurement, this device indicates that "zero setting" was
successful.
■ When the power is turned on, the entire indicator blinks and then "zero
setting" starts. When completed,
■ When the power is already on, measurement is started, then "zero
setting" takes place from the ready screen (which shows "0"). When
completed, appears.
appears.
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