Digital Panel Meters FAQ
Q. When would you use the linearize function of the UDM40 meter?
You would use the linearize function when the output characteristic of a transducer is non-linear. For instance, in figure 1 below is the output characteristic (distance versus output current) of an inductive proximity sensor with 4-20mA output. If you want to accurately display the distance, the instrument must be able to compensate for the non-linearity of the transducer. To do this, the characteristic of the non-linear device must be stored in the meter memory. 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Sensing distance Sn/Snmax 4 6 8 10 12 14 16 18 20 mA
