Process calibration blog and resource hub

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.

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.

Manual approach to pressure switch testing

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.

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.

Simulating thermocouples and RTDs for calibration and testing

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.

Temperature transmitter calibration

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.

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.

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.

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

Manual approach to pressure switch testing

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.

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.

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.

Measurement for Health | World Metrology Day 2021

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.

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. "

4-20 mA applications by FlukePlus members

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

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.

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

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.

Simulating thermocouples and RTDs for calibration and testing

Temperature transmitter calibration

Temperature Switch and Controller Testing in the Field

Automating Transmitter And Sensor Calibrations

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.

Calibrating and Testing RTD Sensors

What matters in custody transfer

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.

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.

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

Pressure transmitter calibration at the bench

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.

Documenting approach to pressure switch testing

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.

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.

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.

How accessories can make your pressure calibrations easier

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

Glossary of Pressure Calibration Terms

Glossary of Pressure Calibration Terms

Glossary of Loop Calibration Terms

Glossary of Loop Calibration Terms

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.

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.

What is a 4-20 mA current loop?

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

Troubleshooting a 4-20 mA loop using mA simulate

How to troubleshoot fieldbus signals

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.

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.

Signal conditioning ensures measurement accuracy

Technicians and engineers who work with automation, instrumentation, and control equipment and systems must deal with measurement issues every day.