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Pressure Measurement Accuracy and Tolerance Calculator

Calculate Pressure Accuracy & Tolerance
Select Answer Mode
Pressure [?]
Accuracy [?]
Tolerance [?]

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Change the answer mode for this tool by selecting pressure, accuracy or tolerance as the parameter to calculate instead



Pressure sensor products
  • Chemical Resistant Pressure Sensor Elements for Electronic Devices & Embedded Product Design & Development
  • TPSA Precision High Pressure Transducer 0-5 Volts Output Pressure Transducers
  • High Temperature Pressure Transmitters
  • UPS-HSR USB Pressure Sensor with High Sample Rate Logging

Contents

  • Related Tools
  • User Guide
    • Formulas
      • Symbols
    • Pressure
    • Accuracy
    • Tolerance

Related Tools

  • Pressure sensing errors calculator
  • Calibration error calculator

User Guide

This tool will calculate the tolerance value, accuracy factor or pressure value for a pressure measurement device.

Use different pressure units to define the pressure measurement tolerance to avoid long decimals with too many leading zeros.

Define accuracy as a percentage value or a parts per million factor, plus a few other rarely used methods to express measurement accuracy.

Determine the largest pressure range that can be used to achieve a specific pressure measuring accuracy.

Formulas

The formulas used by this pressure measurement, accuracy and tolerance calculator to determine each individual parameter are:

Tol = P · Acc

Acc = Tol / P

P = Tol / Acc

Symbols

  • Tol = Tolerance value in pressure units
  • Acc = Accuracy as a proportion of a pressure value
  • P = Pressure value

Pressure

This is the pressure value used to derive the accuracy or tolerance. The pressure value used is often the pressure range of a pressure measurement device, since typically the accuracy is a fixed value across the whole range.  For pressure calibration equipment the accuracy is sometimes defined as a percentage of reading, and in this case it would be a specific pressure reading that would be used to calculate the tolerance.

Accuracy

This is a proportion of the pressure range or reading that defines the margin of error in  measuring the true pressure value.

Tolerance

This is the amount of pressure that a reading may deviate from the true pressure value.

Pressure gauge products
  • Baroli 02 Precision Digital Pressure Gauge
  • Max / Min Stored Reading Electronic Pressure Gauges
  • Computer Interface Pressure Gauges
  • Data Logging Pressure Gauges

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