## How to do 4-20mA Conversions Easily

Generally it is possible to generate a “custom” linear equation in the form of y = mx + b for any linear

## 4-20mA Formulas and Examples

4-20 mA transmitter current output can be converted to the voltage within a specified range, from 0 to a maximal amplitude Vmax,

For any unit conversion on any PLC, you can use four function math with the following for PLC Analog Input

## Scaling Sensor Output to Engineering Units

Sensor Scaling – Converting Current and Voltage Inputs To Engineering Units Such As psi, Deg C, m3/hr etc… Sensor Scaling

## Linear to Square Root Extraction

Some pressure measurements are used to indirectly derive another type of measurand. One of these is the Rate of Flow

## Calculate Temperature Coefficient of RTD

RTD’s are based on the principle that the resistance of a metal increases with temperature. The temperature coefficient of resistance (TCR)

## Formula to Calculate 3-15psi from 4-20mA Current

The amount of psi can also be calculated from the amount of the milliamp signal, or one can calculate the amount of the milliamp

## Calculate Flow Coefficient Kv of Solenoid Valve

Flow Coefficient Kv Definition Kv-value: Amount of flow (m3/hour) of water of 20°C in a valve with a pressure loss

## Calculate Process Variable from 4-20mA using Fraction of Measurement

An electronic transmitter with an output of 4 – 20 mA is calibrated for a pressure range of 7 –

## Calculate Process Variable from Transmitter Current

A pH transmitter has a calibrated  range  of 4 pH to 10 pH, with a 4-20 mA output  signal. Calculate