Instrumentation Formulas

Calculate Control Valve Stem Position
  • Control Valves

Calculate Control Valve Stem Position

An electronic  loop controller  outputs  a signal of 8.55 mA to a direct-responding control valve (where 4 mA is shut and…

5 years ago
  • Formulas

Standard 4 to 20 mA Conversion Formula

A 4 to 20 mA current signal represents a 0 to 100 percent scale. Usually, this scale is linear, as…

4 years ago
  • Formulas

Formula for Linear % to Square root % conversion

This formula used to convert transmitter Linear Percentage to Square root Percentage conversion. Calculating the equivalent Square root Percentage for…

5 years ago
  • Formulas

Formula for Process Variable to Percentage Conversion

Calculate the equivalent Percentage for any given Process variable. For conversion, we need transmitter Lower Range Value and Upper Range…

5 years ago
  • Formulas

Formula for Current 4-20ma to Percentage Conversion

Calculate the equivalent Percentage for any given current signal 4 to 20 mA. For conversion, we need transmitter's Lower Range Value…

1 year ago
  • 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…

1 year ago
  • Formulas

Formula to Calculate 4-20ma from Percentage

Calculate the equivalent 4-20 mA loop current value for any given percentage of signal. We need field transmitter span, lower…

1 year ago