Basic Sensor/Transmitter Calibration ▶ Check out the full blog post over at https://realpars.com/sensor-calibration/ We must adjust zero and span to reduce the measurement error. Zero adjustment is made to move the output to exactly 4 milliamps when a 0% process measurement is applied to the transmitter, and the Span adjustment is made to move the output to exactly 20 milliamps when a 100% process measurement is applied. Watch the video and answer the question. What is the purpose of the Zero an