Temperature Measurement and Calibration Resource Center

A collection of helpful resources for temperature calibration in manufacturing and industry.

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Temperature Calibration Tools
	Industrial Temperature Calibration Selection Guide Selection guide featuring tools for industrial instrumentation and calibration technicians.
	Thermocouple Table Voltage Calculator Select one of the 8 letter-designated thermocouple types from the console, type any temperature within the thermocouples range into the Temperature window and press calculate. The calculator will produce the NIST thermocouple table value for that temperature along with the sensitivity or Seebeck coefficient (dV/dT).
	PT100 Calculator Use this PT100 Calculator to calculate temperature and resistance values from the standard PT100 curves. The calculator will produce a temperature value from an entered resistance or calculate resistance and thermometer sensitivity values from an entered temperature.

Web Seminars
	Overcoming Drift: A Complete Guide to Maintaining Your PRTs This seminar will provide you with skills that will help you reduce and control resistance drift associated with platinum resistance thermometers (PRTs). We'll discuss how to establish control charts with the use of the triple point of water to check your PRT in between calibrations. This seminar also looks at sources of PRT drift and practices that may be used to make a correction.
	Replacing Mercury Thermometers Once and for All This seminar discusses worldwide initiatives to reduce exposure to mercury and how this effects the current use of mercury-in-glass thermometers. Also learn about new alternatives to precision mercury-in-glass thermometers.
	How to Calibrate an RTD This seminar discusses the two methods you can use to make sure your RTDs and PRTs are always properly tuned -- and can give you the accuracy you need. You'll learn about the 5 steps for RTD/PRT characterization, and get tips for increasing the effectiveness of tolerance testing.
	Infrared Temperature Calibration 101 You know that infrared thermometers provide critical data on the job that no other thermometer can, but what you don’t know may surprise you. In fact, what you don’t know may be causing damage, that could easily be prevented. So how can you avoid the common mistakes that almost everybody makes? Watch this seminar for a comprehensive overview of how infrared thermometers really work – and learn what you can do to ensure they are properly calibrated.

Videos
	914X Field Metrology Wells Video Series This ten video series demonstrate that Fluke Field Metrology Wells are highly accurate dry block calibrators specially designed to optimize performance for on site temperature calibration applications. They are fast, accurate, and compensate for adverse environmental conditions.

Application Notes
	How to Calibrate an RTD or Platinum Resistance Thermometer (Application Note) There are two types of calibrations applicable to PRTs—characterization and tolerance testing. This application note helps to determine which type of calibration should be performed.
	Temperature Calibration Equipment: A Technician's Guide (Application Note) Have you ever been brought a new thermometer to calibrate, and asked yourself, “What am I going to need to calibrate this?” This guide is intended to help you work out the kind of equipment you need for your particular calibration situation.
	Improving Loop Calibration Temperature Accuracy (Application Note) Topics covered in this application note include: sensor contribution to loop accuracy; streamlined calibration with Fluke Calibration Metrology Wells; and innovations in dry-block performance.
	Eliminating Sensor Errors in Loop Calibrations (Application Note) This application note shows how significant performance improvement can realized by optimizing the loop calibration measurement system to better accommodate the unique characteristics of the temperature sensing element.
	Selecting an Industrial Temperature Calibrator (Application Note) If you have industrial temperature sensors such as RTDs, thermocouples, thermistors, bi-metal thermometers or liquid-in-glass thermometers to calibrate, you need a reliable heat source to verify accuracy. This application details how to select the appropriate dry-well calibrator for your industrial sensors.
	Best Practices for Temperature Calibration (Application Note) Temperature plays a key role in many industrial and commercial processes. In this application note, you’ll learn how to calibrate a thermocouple input transmitter, how to verify performance of a temperature indicator and how to verify a thermostat or temperature controller.
	Understanding the Uncertainties Associated with the Use of Metrology Wells (Application Note) The purpose of this application note is to help technicians and metrologists understand and quantify measurement uncertainty when using Metrology Wells.
	Temperature calibration: Tips and tricks from the real world Anyone who has been in the calibration business for as long as we have knows that experience is priceless. Time has a way of teaching you what works and what doesn’t. When things are working right, the cal lab may not be a very exciting place, but it does mean you did your job. So, here are a few tips and tricks you can use to keep things up and running.

Papers/Articles
	Making the Right Choice for Your Temperature Readout (Paper) When performing temperature calibrations, the right choice of readout for your reference probe and units under test is critical. This paper provides an overview of the considerations that should be made when selecting a readout.
	Selecting a Dry-Well Temperature Calibrator (Paper) If you have industrial temperature sensors such as RTDs, thermocouples, thermistors, bi-metal thermometers or liquid-in-glass thermometers to calibrate, you need a reliable heat source to verify accuracy. This paper details how to select the appropriate dry-well calibrator for your industrial sensors.
	Emissivity - The Crux of Accurate Radiometric Measurement (Paper) Understanding the sources of error for flat plate emissivity, and how this knowledge leads to more accurate calibration of IR thermometers.
	Metrology Wells Versus Dry-Wells: Do Vertical Gradients Really Matter? (Paper) Dry-well calibrators are widely used as temperature standards in many calibration laboratories and in various industrial fields. It’s well known that the axial temperature uniformity of a dry-well calibrator is generally worse (usually much worse) than that of a liquid bath. How much do these vertical temperature gradients really affect your calibration? Why would you consider Metrology Wells as an alternative to both dry-wells and fluid baths?