{"schemaVersion":1,"slug":"ansi-pyrometer-indication","name":"ANSI/IEEE thermometer/pyrometer symbol","kind":"symbol","abbreviation":"PYR","aliases":["IEEE pyrometer symbol","ANSI thermometer pyrometer symbol","HIN1P25"],"category":"measurement-protection","drawingTypes":["Schematic"],"referenceFamilies":["IEEE / ANSI","Manufacturer"],"summary":"IEEE-library thermometer/pyrometer form for high-temperature indication, often from thermocouples or radiation sensors.","description":["Pyrometer indication is used where temperatures are too high for ordinary thermometers, such as furnaces, kilns and exhaust gas. The instrument is commonly fed from a thermocouple or an optical radiation sensor, so the input wiring and any cold-junction compensation must be shown with the instrument.","The form identifies the indicating instrument, not the sensing principle. A radiation pyrometer and a thermocouple pyrometer look the same at the instrument circle, and emissivity settings or sensor range limits must come from the instrument data."],"readingNotes":["Identify the sensing element feeding the pyrometer.","Check for cold-junction compensation when a thermocouple is used."],"drawingChecklist":["Name the sensing principle","State the temperature range","Reference compensation or emissivity setting"],"distinction":"The pyrometer form signals a high-temperature indicator; the general thermometer form covers ordinary temperature indication.","facts":[{"label":"Convention evidence","value":"Autodesk IEEE Symbol Preview, Instrumentation and Sensors"},{"label":"Public vendor block name","value":"HIN1P25 / VIN1P25 (Autodesk identifier; not an IEEE symbol number)"},{"label":"Typical use","value":"Furnace, kiln and exhaust temperature indication"},{"label":"Artwork scope","value":"Original functional illustration; exact standard glyph and compliance are not certified"}],"references":[{"sourceId":"ansi-autodesk-f44d5059-4728-40bd-b9ba-0de7cfdfaacf","relevance":"Public IEEE-oriented Instrumentation and Sensors preview listing the Thermometer/Pyrometer block and its vendor identifier."},{"sourceId":"ieee-315","relevance":"Graphic-symbol standards context and official status; not a source of reproduced artwork."}],"related":["iec-pyrometer-indication","ansi-thermocouple","ansi-temperature-indicator"],"artwork":"s28-ansi-pyrometer-indication","publishedOn":"2026-10-28","updatedOn":"2026-10-28","provenance":"independent-public-research","symbolVariant":{"convention":"IEEE / ANSI","form":"Autodesk IEEE-oriented Instrumentation and Sensors form: Thermometer/Pyrometer","counterpart":"iec-pyrometer-indication","reference":"Autodesk publishes this block under its IEEE Symbol Preview. The counterpart is the matching functional concept in the library; no equivalence of every detailed standard graphic is asserted."},"plainEnglish":{"title":"What does ANSI/IEEE thermometer/pyrometer mean?","introduction":"Pyrometer indication is used where temperatures are too high for ordinary thermometers, such as furnaces, kilns and exhaust gas. The instrument is commonly fed from a thermocouple or an optical radiation sensor, so the input wiring and any cold-junction compensation must be shown with the instrument.","example":"The form identifies the indicating instrument, not the sensing principle. A radiation pyrometer and a thermocouple pyrometer look the same at the instrument circle, and emissivity settings or sensor range limits must come from the instrument data.","drawings":"Identify the sensing element feeding the pyrometer. Check for cold-junction compensation when a thermocouple is used. The pyrometer form signals a high-temperature indicator; the general thermometer form covers ordinary temperature indication.","terms":[{"name":"Signal","meaning":"Electrical information passed between devices, rather than necessarily the main power supply."},{"name":"Schematic","meaning":"A drawing showing function and connections rather than physical appearance."}],"diagram":"flow","steps":["Identify the device and form","Read the connections and state","Check the equipment reference"],"caption":"A guide to reading this reference. The original symbol illustration and its drawing notes appear below; these boxes are not a wiring diagram.","sources":[{"label":"Autodesk IEEE Symbol Preview — Instrumentation and Sensors","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-F44D5059-4728-40BD-B9BA-0DE7CFDFAACF.htm"},{"label":"IEEE/ANSI 315-1975: graphic symbols for electrical and electronics diagrams","url":"https://standards.ieee.org/ieee/315/515/"}],"detail":"IEEE-library thermometer/pyrometer form for high-temperature indication, often from thermocouples or radiation sensors. The pyrometer form signals a high-temperature indicator; the general thermometer form covers ordinary temperature indication.","profileId":"reviewed-symbol-20261028"},"url":"https://eloragrid.ai/symbols/ansi-pyrometer-indication","illustration":{"url":"https://eloragrid.ai/tools/electrical-library/illustrations/ansi-pyrometer-indication.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"ansi-autodesk-f44d5059-4728-40bd-b9ba-0de7cfdfaacf","title":"Autodesk IEEE Symbol Preview — Instrumentation and Sensors","publisher":"Autodesk","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-F44D5059-4728-40BD-B9BA-0DE7CFDFAACF.htm","type":"cad-reference","scope":"Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.","checkedOn":"2026-10-14","reuse":"link-only","relevance":"Public IEEE-oriented Instrumentation and Sensors preview listing the Thermometer/Pyrometer block and its vendor identifier."},{"id":"ieee-315","title":"IEEE/ANSI 315-1975: graphic symbols for electrical and electronics diagrams","publisher":"IEEE Standards Association","url":"https://standards.ieee.org/ieee/315/515/","type":"standard","scope":"Graphic symbols and designation letters. IEEE lists this edition as Inactive-Reserved; it is a historical reference, not a claim of current compliance.","checkedOn":"2026-10-13","reuse":"link-only","relevance":"Graphic-symbol standards context and official status; not a source of reproduced artwork."}]}