Process calibration resources

Calibration helps ensure accurate measurements that are foundational to the quality and safety of our everyday lives. As a calibration professional, the world relies on you to get it right. And, we’re here to help you get it right with educational articles on various calibration topics including new testing and calibration processes, custody transfer, sensor and transmitter calibration, calibration in the field and at the bench, and much more.

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Pressure calibration

Article

Calibrating at the bench with a deadweight tester

A deadweight tester is a proven method of pressure calibration that is usually chosen for bench applications when accuracy and reliability are the top requirements. Calibrations are performed at the bench for convenience and to maintain reference conditions.

Article

Hand pumps and pressure test gauges for field pressure testing

It's important to select the proper pump and gauge to match the testing application at hand—a good guideline is the testing device should be 4-10 times more accurate than the device being tested.

Article

Manual approach to pressure switch testing

Article

Calibrating a HART Smart Pressure Transmitter

Verifying and documenting the performance and adjusting a HART smart pressure transmitter can require a bucket full of tools. Performing this task with a HART enabled calibrator like the Fluke 754 simplifies the task and reduces what you need to carry.

Temperature calibration

Article

Automating Temperature Calibration at the Bench

See the advantages of automating temperature calibration, different ways to achieve automation, and the general steps required. Plus, see related resources.

Article

Simulating thermocouples and RTDs for calibration and testing

Article

Verifying portable thermometers

On-the-spot temperature checks using portable thermometers are frequently performed in the field by technicians in order to ensure product quality.

Article

Temperature transmitter calibration

Loop calibration

Article

A new control valve testing process

Proportional smart control valves play critical roles in process industries. Accurately assessing valve performance, however, can be a cumbersome routine.

Article

Breaking new ground without breaking the loop

Early reports from the field suggest that the new Fluke 772 and 773 Milliamp Process Clamp Meters may be game changers, breaking new ground for technicians in the HVAC controls industry. With the feature sets these meters offer, troubleshooting of the most common problems in modern control systems becomes a snap.

Article

How calibration improves optimization

Learn which calibration tools are best for improving optimization and quality in process manufacturing plants including chemical processing, nuclear power, pharmaceutical, pulp and paper.

Article

Troubleshooting 4 to 20 mA Process Control Systems without Breaking the Loop

Troubleshooting 4 to 20 mA (milliamp) process control systems without breaking the loop using Fluke 773 Milliamp Process Clamp Meter

All calibration articles

Article

Instrument Calibration and Why It Matters

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Temperature calibration: Tips and tricks from the real world

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Eliminating sensor errors in temperature control loop calibrations

Follow the steps as we demonstrate how to link a documenting process calibrator to a drywell to calibrate a 4-20 mA transmitter and probe in a system.

Article

How to Calibrate a Pressure Gauge with the Fluke 8270A High-Pressure Controller Calibrator

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What is Calibration?

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How to Calibrate a Digital Thermometer with a Dry-Block Calibrator and with Freezing and Boiling Water

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Three methods for calibrating temperature sensors: pros and cons

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5 Steps to Calibrate an RTD

Article

Infrared Thermometer Calibration - A Complete Guide

Article

How to calibrate a temperature sensor in the field

Pairing a Fluke dry well with a handheld documenting calibrator allows for a complete field temperature sensor calibration solution.

Article

What is the HART protocol?

Article

Documenting approach to pressure switch testing

Article

Calibrating a HART Smart Pressure Transmitter

Verifying and documenting the performance and adjusting a HART smart pressure transmitter can require a bucket full of tools. Performing this task with a HART enabled calibrator like the Fluke 754 simplifies the task and reduces what you need to carry.

Article

Why Use Fluke Calibration Metal Freeze-Point Cells?

See a full list of Metal Freeze-Point Cells produced by Fluke and learn more about them here.

Article

Why is Calibration Important?

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What is the accuracy/uncertainty of the device to be tested?

The first step to selecting the right pressure calibration product is to understand the specifications of the device under test (DUT).

Article

To what extent can the calibration process be automated?

Automation of the pressure calibration process has many potential benefits, including increasing productivity, ensuring better pressure measurements

Article

Why Use an Annealing Furnace?

Article

What is the environment in which the calibration is to take place?

Once you know which categories of instruments will meet your measurement performance needs, you can determine which of those instruments can be used effectively in your environment.

Article

PPC4 Cockpit Sample Run Windows

Article

AC versus DC: The Truth

The purpose of this paper is to truthfully answer various questions one might have with regard to resistance bridges and readouts after reading some of the sales hype arguing that AC is better than DC or vice versa

Article

Why buy Primary Standards from Fluke Calibration?

Fluke Calibration’s fixed-point cells benefit from more than 20 years of experience in research, design, and manufacturing. Four types of cells are available: traditional size cells, “mini” quartz cells, new “mini” metal-cased cells, and small stainless steel “X” cells

Article

Calibrator: A Comprehensive Introduction

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Temperature Calibration: All Your Questions Answered

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World Metrology Day 2024 - Measuring Today for a Sustainable Tomorrow

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Calibrating pressure transmitters and switches in potentially explosive atmospheres

Pressure calibration can be challenging in the best of environments. Working in an area that has the potential for explosion takes the degree of difficulty to another level—one where the technician needs proper training and equipment.

Article

Why use calibration software in process instrumentation?

Article

What is a 4-20 mA current loop?

Article

Reducing the difficulty of “in-situ” in field pressure calibrations

Article

Case study: How a power facility reduced 40% of calibration time

Many facilities, such as power plants or production facilities, depend on a strong preventive maintenance program. These programs are essential to keep processes running safely and efficiently.

Article

Case study: Yuenglings toolbox

What's in your toolbox? Yuengling Tampa Brewery

Article

Case study: Yuengling Brews Up a Winning Maintenance Approach

The Yuengling maintenance team keeps the vintage facility brewing and bottling up to a million barrels of beer yearly. It takes a very lean operation to win against mega-brewers many times Yuengling's size.

Article

How to calibrate a HART Pressure Transmitter from a downloaded task with the Fluke 729

Article

Guide to signal conditioning

Learn signal conditioning basics, types of signal conditioning and how they ensure signal measurement accuracy.

Article

How to connect a Fluke 729 Automatic Pressure Calibrator to a HART Transmitter

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Best accessories to set up a pressure calibration

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How to overcome pressure leaks during calibration by using the Fluke 729 Automatic Pressure Calibrator

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How to Calibrate a Pressure Switch Using the Fluke 729 Automatic Pressure Calibrator

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How to perform a pressure leak test using the Fluke 729 Automatic Pressure Calibrator

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How to Perform a Pressure Calibration Using the Fluke 729

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Reduce instrument maintenance costs by 40% or more with route-based work flows

Article

Manual approach to pressure switch testing

Article

Verifying portable thermometers

On-the-spot temperature checks using portable thermometers are frequently performed in the field by technicians in order to ensure product quality.

Article

Calibrating at the bench with a deadweight tester

A deadweight tester is a proven method of pressure calibration that is usually chosen for bench applications when accuracy and reliability are the top requirements. Calibrations are performed at the bench for convenience and to maintain reference conditions.

Article

NIF Brings Star Power to Earth

You could call this a factory, but you've never seen a plant like this before. The "manufacturing" process here relies on "shots" of laser energy focused on a target the size of a BB. The product: a nuclear reaction six times hotter than the core of the sun . . . and a growing understanding of fusion reactions that could one day free the planet from dependence on dwindling fossil fuels. "

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Measurement for Health | World Metrology Day 2021

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4-20 mA applications by FlukePlus members

Fluke customers share their tool-tips for the 4-20 mA.

Article

Pressure transducer calibration

Fluke experts show you how to calibrate a pressure transducer including a step-by-step pressure transducer calibration procedure, certificate, and tips.

Article

Using a mA source for testing 4 to 20 mA loop devices

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Troubleshooting a 4-20 mA loop using mA simulate

Article

How calibration improves optimization

Learn which calibration tools are best for improving optimization and quality in process manufacturing plants including chemical processing, nuclear power, pharmaceutical, pulp and paper.

Article

How to keep control valve positioners on target

Learn how to avoid calibration drift on control valve positioners as part of your preventive maintenance program.

Article

Calibrating at the bench with a pressure comparator

A pressure comparator is a convenient instrument for bench pressure calibration. Bench calibrations are performed to maintain reference conditions and to obtain the lowest possible uncertainties. The bench is also a convenient place to inspect, adjust, and repair the devices under test.

Article

Calibrating and Testing RTD Sensors

Article

Hand pumps and pressure test gauges for field pressure testing

It's important to select the proper pump and gauge to match the testing application at hand—a good guideline is the testing device should be 4-10 times more accurate than the device being tested.

Article

Automating Temperature Calibration at the Bench

See the advantages of automating temperature calibration, different ways to achieve automation, and the general steps required. Plus, see related resources.

Article

Automating Transmitter And Sensor Calibrations

Article

Temperature transmitter calibration

Article

Temperature Switch and Controller Testing in the Field

Article

Simulating thermocouples and RTDs for calibration and testing

Article

Verifying analog and digital pressure gauges

How to perform a verification test on analog vs digital pressure gauges. Both analog and digital process gauges need to be verified to detect errors related to drift, environment, electrical supply, addition of components to the output loop, and other process changes

Article

Gas custody transfer flow computer calibration

Gas custody transfer flow computers that calculate flow in pipelines by measuring the differential pressure across a flow restriction, such as an orifice plate or other differential pressure flow device, require special calibration to perform at optimum accuracy.

Article

A new control valve testing process

Proportional smart control valves play critical roles in process industries. Accurately assessing valve performance, however, can be a cumbersome routine.

Article

How to troubleshoot fieldbus signals

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What matters in custody transfer

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Using loop power for process instrument and 4-20 mA loop testing

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Why IR accuracy and traceability are critical

Whether you're building automobiles or electronic components, processing food, maintaining electrical systems, or making plastic, temperature inspection using infrared (IR) cameras and spot thermometers is becoming one of the quickest, safest ways to accurately inspect electrical, electronic, mechanical, HVAC, and process control systems.

Article

Why does this year have an extra second?

On December 31, 2016, metrologists around the world—especially those living under Greenwich Mean Time (GMT)— will add a single second to their New Year's Eve countdown.

Article

Assessing control valves and their performance

When assessing control valves and their performance, you need to understand the different types of valves and what they can be tested for.

Article

Glossary of Loop Calibration Terms

Glossary of Loop Calibration Terms

Article

Glossary of Pressure Calibration Terms

Glossary of Pressure Calibration Terms

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