Temperature Metrology, Course Outline

Class size is limited to just 25 people, so register today to reserve a seat!

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Hart Temperature School Faculty

When we say you’ll learn from experts, we mean it. Our faculty includes leading experts from Hart Scientific in temperature metrology, electronics, primary standards, and instrumentation.

We also draw on current and former temperature metrologists from various national labs. Our faculty is not only knowledgeable, they all know how to teach and make your learning experience effective and enjoyable.

“I learned enough to more than justify the cost of the seminar. I’ve got a start now for implementing changes for the better in our lab.”

This is an intermediate course in practical lab skills for comparison calibrations of various sensor types, along with other calibration techniques for greater accuracy. You’ll leave knowing how to use SPRTs and other high-accuracy standards to keep your working standards performing at their highest levels.

Comparison calibration labs need practical information on how to implement ITS-90, and you’ll get it from this course. Come and talk with people who know the theory and practice of calibrating everything you see on a daily basis. Not only will they teach you technique, they’ll explain the logic behind what they’re teaching. You’ll learn more than you thought possible in only a couple of days. We’ll address the world of accuracy from 0.1 °C to 0.01 °C.

Are you working on laboratory accreditation? In this course we also discuss accreditation and compliance, especially dealing with ISO 17025 issues.

Not only will we cover actual calibration techniques, we’ll show you how various instruments such as readouts, drywells, and calibration baths work and why they work the way they do. You’ll learn how to pick the right equipment for any calibration, how to verify the uncertainty of what you are doing, and the most cost-effective approach for specific jobs. Bring your questions; we’ll answer them better than anybody ever has.

Course length: 2½ days
Class size: 25

Day 1- Fundamentals

Introduction to Temperature Metrology

Temperature scales, ITS-90, and fixed-points
Uncertainty and traceability

Thermometer Types

Thermistors—higher accuracy for less cost
Thermocouples
Liquid-in-Glass—procedures for
accuracy
SPRTs, PRTs, RTDs—when? why?
Reference thermometers

Components of Measurement and Uncertainty

Heat sources
Readouts

Day 2 - Calibration Techniques

Common Calibration Techniques for:

Thermistors & PRTs
Thermocouples—ASTM, spool testing
LIG—ASTM—specific requirements

Optimizing Your Measurement

Test accuracy ratio
Error budgeting
Profiling a heat source

Mathematics

Temperature equations

Maintaining Your Standards

Statistics—statistical control in the lab
Frequency of calibration
Uncertainty analysis

Compliance Issues

Z540, reports, tables - pleasing the auditor

Day 3 - Demonstrations

LIG calibration
Thermistor calibration
Thermocouple calibration
T-Type (roll of wire) TC calibration
TPW—nitrogen freeze
Advanced readout technology
Add on two additional days of complete hands-on experience with Hart baths, dry-wells, thermometer readouts, and software.

Course	Industrial Calibration	Temperature Metrology	ITS-90 Seminar
Qualifications and Prerequisites	None	Some experience in sensor calibrations	Some experience with comparison calibration techniques; some familiarity with the ITS-90
Typical Uncertainties Discussed	±5°C to ±0.1°C	±0.5°C to ±0.005°C	±0.1°C to ±0.001°C
Coverage of Fixed Points	Brief introduction to water triple point cells; demonstration of mini TPW cells.	Theory, demonstrations, and hands-on experience with water triple point cells.	Theory of all ITS-90 fixed points; demonstrations of TPW freeze and tin and gallium realizations.
Who Should Come	Anyone new to temperature metrology and anyone performing in-field calibrations of working sensors—typically using portable calibrators—with or without reference thermometers.	Those responsible for calibrating in-field standards. Metrologists who do not work heavily with ITS-90 fixed points, but who seek lower uncertainties through comparison calibrations.	Metrologists responsible for calibrating SPRTs or other laboratory standards. Those seeking the lowest possible uncertainties through comparison or fixed-point calibrations.

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