A level transmitter using a capacitance sensor has a range of 0-20 feet and a 4-20 mA output signal. If the transmitter is currently measuring a level of 15 feet, what is the output signal in milliamps (mA)?
A. 12.8 mA
B. 18.0 mA
C. 16 mA
D. 20.0 mA
Answer:C
A level transmitter using a capacitance sensor has a range of 0-20 feet and a 4-20 mA output signal. If the transmitter is currently measuring a level of 15 feet, what is the output signal in milliamps (mA)?
A. 12.8 mA B. 18.0 mA C. 16 mA D. 20.0 mA
Explanation: To determine the output signal in milliamps (mA) for a level transmitter using a capacitance sensor, given a range of 0-20 feet and a current range of 4-20 mA, we can use the following linear relationship: