Inst ToolsInst ToolsInst Tools
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
Search
  • Books
  • Software
  • Projects
  • Process
  • Tools
  • Basics
  • Formula
  • Power Plant
  • Root Cause Analysis
  • Electrical Basics
  • Animation
  • Standards
  • 4-20 mA Course
  • Siemens PLC Course
Reading: Formula for Percentage to Process Variable Conversion
Share
Notification Show More
Font ResizerAa
Inst ToolsInst Tools
Font ResizerAa
  • Courses
  • Design
  • PLC
  • Interview
  • Control System
Search
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Inst Tools > Blog > Formulas > Formula for Percentage to Process Variable Conversion

Formula for Percentage to Process Variable Conversion

Last updated: March 27, 2023 9:56 am
Editorial Staff
Formulas
No Comments
Share
1 Min Read
SHARE

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.

Contents
Percentage to Process Variable ConversionProcess Variable = Span(X/100) +LRV

Percentage to Process Variable Conversion

Formula for 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

Instrument Process Variable to Percentage Conversion Formula - Instrumentation Formulas

Read Next:

  • Instrumentation Calculator
  • Setpoints and Alarms
  • What is Feedforward Control
  • Open Tank Level Calculations
  • Liquid Level Process Control 
Don't Miss Our Updates
Be the first to get exclusive content straight to your email.
We promise not to spam you. You can unsubscribe at any time.
Invalid email address
You've successfully subscribed !

Continue Reading

Calculate Process Variable from Transmitter Current
4-20mA Formulas and Examples
DP Transmitter Dry Leg & Wet Leg Calculations
Remote Seal Transmitters Ranging Calculation
Level Calculation with Remote Seals
Calculate Process Variable from 4-20mA using Fraction of Measurement
Share This Article
Facebook Whatsapp Whatsapp LinkedIn Copy Link
Share
Leave a Comment

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Stay Connected

128.3kFollowersLike
69.1kFollowersFollow
210kSubscribersSubscribe
38kFollowersFollow

Categories

Explore More

Zero Suppression and Zero Elevation Calculations
How to Convert Cable Size from AWG to Inches
Formula to Calculate 4-20 mA from Process Variable
Calculate Flow Transmitter Output Current
Formula to Calculate 4-20ma from Percentage
Calculate Temperature Transmitter Output
Siemens Pressure Transmitter with Remote Seals Calculations
PLC Raw Count Calculation for Pressure Transmitter

Keep Learning

plc-analog-input-card-conversion-formula

PLC Analog Input Conversion Formula

Instrument Percent of Span Error

Instrument Percent of Span Error

4-20mA VFD Drive Formula

4-20mA Linear Conversion Calculation for VFD Drive (Formula)

Turbine Flow meter coefficient

Turbine Flow Meter Coefficient and Scaling Factor

input-output-relationships-of-transmitters

Input-Output Relationships of Transmitters

Control Valve Cv Formula

Control Valve Cv calculation

PLC Problems Troubleshooting

PLC Problems Troubleshooting

Displacer Level Measurement Formula

Displacer Level Measurement Calculations

Learn More

General Streams in Electronics Engineering

General Streams in Electronics Engineering for Students

Losses of Transformer

Advantages and Disadvantages of Flow Measurement Techniques

Advantages & Disadvantages of Different Flow Meters

State Variable Analysis and Design

Controllability & Observability

Partial Discharge in Power Lines and its Detection through Sensors

Partial Discharge in Power Lines and its Detection through Sensors

pilot operated relief valves

Pilot-operated Relief Valve Principle

Top 100 Switchgear and Protection Interview Questions

Top 100 Switchgear and Protection Interview Questions

Corona Discharge

Corona Discharge in Power Transmission Lines

Menu

  • About
  • Privacy Policy
  • Copyright

Quick Links

  • Learn PLC
  • Helping Hand
  • Part Time Job

YouTube Subscribe

Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Welcome Back!

Sign in to your account

Username or Email Address
Password

Lost your password?