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the whole screen will flash to alert the user To prevent damage to the sensor release the pressured.,
.,immediately When the alarm goes off the measure speed of the ADT681 automatically changes to10
times per sec in order to catch up the pressure change When the alarm stops the speed will go back.,
.to normal
.7 3 Zeroing
(1) Gauge sensor types:
To zero the ADT681 press the key. Before zeroing the ADT681, the current pressure should be in the range
of -2% ~ 2% FS. Figure 7-3-1 shows the zeroing sequence of gauge pressure.
Figure 7-3-1: The zeroing process of the ADT681
(2) Absolute sensor types:
① When the ADT681 is connected to atmosphere, the user should know the current atmosphere pressure value
(Pstandard).
② The actual pressure of ADT681 is (Pmeasure).
③ Press and hold to enter the data input state, then input the actual pressure (Pstandard).