For example, a pressure switch, set the action value is 10MPa, the reset value is 9.9MPa, then the dead zone should be 0.1MPa? If the accuracy is 2%, it is not that the actual pressure value and the action value of the error is not greater than 0.2 Is there an error when resetting? For example, I reset the value is 9.9MPa, it is not that the actual value and reset the value of the error is not greater than 0.198MPa? There is a return switch pressure switch should be how to measure? Return difference is the same measurement point of the uplink and downlink difference, the pressure switch is the uplink action value, the downlink is the reset value, the return difference is dead
In the country is usually called the hysteresis, translated in foreign countries is called dead zone. Because we also have the United States KFT brand pressure switch.
Why do we stress switch to divide the range, that is because of this reason. If there is no relationship with the range directly on a range of 0 ~ 100MPa that is not all settings can be used.
Reset value allows error = action value multiplied by accuracy so 0.198MPa is correct.
Pressure switch return difference is usually called back, hysteresis detection mode, the pressure switch action value will output the switch signal, reset the time when the switch signal. According to this principle can measure the size of the hysteresis.
Hello there! I am the Chongqing Carver company, professional to do the pressure switch.
According to the situation you say this, the accuracy is 2% action value is 10MPa recovery value is 9.9MPa If the range is 0 ~ 15MPa then the action value of the error is the range 15 multiplied by the accuracy of 0.02 equal to 0.3 then the action value of the error is not Greater than this value of 0.3.
That is, the actual action value may be 10 ± 0.3MPa.
So the error of the action value is a great relationship with the selected range. (So ??this must pay attention)
