Calculate the measure electrical output (mA) of a pressure-type level sensor that has a 0-4 psi...
Calculate the measure electrical output (mA) of a pressure-type level sensor that has a 0-4 psi input range and a 0-20 mA output range if the pressure sensed is 3 psi.
Homework Answers
the current output in the pressure-type level sensor is directly proportional to the measured input. the relation can be written as
where k is the constant of proportionality.
the complete range of pressure is 0-4 psi., and that of the output current is 0-20mA
hence the pressure of 4 psi would give 20 mA of output current.
putting this in the above equation we get,
now in the equation that we got, putting the value of the given pressure 3 psi
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