November 2022 Volume 4

EQUIPMENT & TECHNOLOGY

Disadvantages are primarily failure in application, including: • Poor focus or lens fouling • Bad location in reference to measurement target • Incorrect emissivity • Calibration drift or incorrect signal scaling by logic or process loop controls • Human error: misunderstanding the operation of temperature and process control equipment leads to uniformed decision making Applying best practices to pyrometer setup and maintenance can help avoid the many problems caused by poor temperature control. References 1. American Society for Metals, Metals Handbook Vol. 5 Forging and Casting, vol. Five, Metals Park: American Society for Metals, 1970. 2. Williamson Corporation, Williamson Pro Series Pyrometer Installation and Operation Manual, Concord: Williamson Corporation. 3. G. C. Holst, Common Sense Approach to Thermal Imaging, Winter Park, Florida: JCD Publishing and SPIE Optical Engineering Press, 2000.

4. V. I. C. R. Lappe, "Using Infrared Thermometer to Control Temperature During Induction Heating," ASM Handbook, Volume 4C, Induction Heating and Heat Treatment, vol. 4c, pp. 730-741, 2014. 5. AMETEK Land, Spot AL & AL LT User Guide, Pittsburg: AMETEK Land, 2021. 6. American Society for Nondestructive Testing, Infrared and Thermal Testing, vol. Three, Columbus, Ohio: American Society for Nondestructive Testing, 2001. Josh Carney is certified Level 2 infrared thermographer in accordance with (ASNT) SNT-TC-1A Josh Carney Technical Director Integral Power Technologies, LLC Phone: 440-701-6022 Email: jcarney@integralpowertechnologies.com

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