{"schemaVersion":1,"slug":"ansi-running-hours-meter","name":"ANSI/IEEE running-hours meter symbol","kind":"symbol","abbreviation":"HOURS","aliases":["IEEE running-hours meter symbol","ANSI running-hours meter symbol","HIN1HRM"],"category":"measurement-protection","drawingTypes":["SLD","Schematic"],"referenceFamilies":["IEEE / ANSI","Manufacturer"],"summary":"IEEE-oriented graphical reference for running-hours meter, with public vendor evidence and drawing-reading notes.","description":["The hour-meter form identifies elapsed-time accumulation while its specified enabling condition is active. The circuit should make clear whether this condition is supply energisation, equipment running feedback or another declared event.","This is a convention-specific lookup based on the publisher's IEEE-labelled preview. The geometry here is independently drawn to explain the connection or operation; it is not a certified reproduction of the standard graphic."],"readingNotes":["Read the enable circuit instead of assuming it counts actual shaft running.","Read the selected library and the project legend together. A vendor block identifier is meaningful within its named library and is not a universal standard-symbol code."],"drawingChecklist":["Identify enable contact","State counted condition","Reference retention/reset"],"distinction":"An hour meter accumulates duration; an operation counter counts discrete events.","facts":[{"label":"Convention evidence","value":"Autodesk IEEE Symbol Preview — Instrumentation and Sensors"},{"label":"Public vendor block name","value":"HIN1HRM (Autodesk identifier; not an IEEE symbol number)"},{"label":"Standards context","value":"IEEE/ANSI 315-1975 covers diagram graphics. IEEE lists this edition as Inactive-Reserved."},{"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":"Exact public IEEE-oriented category page verifying the component name and vendor block identifier."},{"sourceId":"ieee-315","relevance":"Graphic-symbol standards context and official status; not a source of reproduced artwork."}],"related":["running-hours-meter","current-transformer","voltage-transformer"],"artwork":"edu-ansi-running-hours-meter","publishedOn":"2026-10-14","updatedOn":"2026-10-14","provenance":"independent-public-research","symbolVariant":{"convention":"IEEE / ANSI","form":"Autodesk IEEE-oriented Instrumentation and Sensors functional form","counterpart":"running-hours-meter","reference":"Autodesk explicitly publishes this block under IEEE Symbol Preview. The counterpart is the matching functional concept; no equivalence of every detailed standard graphic is asserted."},"url":"https://eloragrid.ai/symbols/ansi-running-hours-meter","illustration":{"url":"https://eloragrid.ai/library/illustrations/ansi-running-hours-meter.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":"Exact public IEEE-oriented category page verifying the component name and vendor block 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."}]}