Home » Formula for Percentage to Process Variable Conversion
Formulas

# Formula for Percentage to Process Variable Conversion

Calculate the equivalent Process Variable for any given percentage of signal ( 0 to 100%). We need Transmitter Span, Lower Range Value and Upper Range Value.

## Percentage to Process Variable Conversion Formula:

### Process Variable = Span(X/100) +LRV

Span = (URV) – (LRV)

Where

X is Percentage of signal
URV is Upper Range of value
LRV is Lower range of value

Example:

#### A pressure gauge is ranged -1 to 1 bar; calculate the Measured Variable for 40 % of signal

Span = (URV) – (LRV) = 2 Bar

Process Variable = Span(X/100) +LRV

Process Variable = (2)(40/100)+(-1)

Process Variable = -0.2 Bar

#### Articles You May Like :

Instrumentation Calculator

Setpoints and Alarms

What is Feedforward Control

Open Tank Level Calculations

Liquid Level Process Control

#### Formula for Linear mA to Square root mA conversion

This website uses cookies to improve your experience. We'll assume you're ok with this, but you can opt-out if you wish. Accept Read More

WordPress Image Lightbox
Send this to a friend