# ANSI/IEEE Clock indication form Canonical URL: https://eloragrid.ai/symbols/ansi-clock-indication Publisher: Elora Grid Updated: 2026-10-28 Lookup label: HIN1P29 Drawing use: Schematic Reference families: IEEE / ANSI, Manufacturer ## Symbol convention Convention: IEEE / ANSI Form: Clock Autodesk IEEE Symbol Preview: Instrumentation and Sensors, block HIN1P29. Matching functional counterpart linked separately. Independently drawn educational geometry; not a certified IEEE glyph or database identifier. Related representation: [Clock indication](https://eloragrid.ai/symbols/iec-clock-indication) IEEE-library form of clock indication: a clock indication identifies a time display or clock function in the circuit documentation. ## In plain English ### What does ANSI/IEEE Clock indication form mean? This reference locates clock indication in Autodesk's IEEE-oriented instrumentation and sensors family. A clock indication identifies a time display or clock function in the circuit documentation. The public library uses HIN1P29 for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number. ### A simple example Use the surrounding circuit labels and the project legend to identify the intended operating condition and connection. Carry the same device reference into the schedule or equipment document so the symbol can be reconciled with its real terminals, function and operating limits. ### What the drawings help you do State the clock's role, supply and any associated outputs. A clock display and an elapsed-hours meter measure different time relationships. State the clock's role, supply and any associated outputs. A clock display and an elapsed-hours meter measure different time relationships. The linked functional counterpart explains the same operating role in its own drawing context; agreement of every detailed convention mark is not asserted. ### This particular reference IEEE-library form of clock indication: a clock indication identifies a time display or clock function in the circuit documentation. A clock display and an elapsed-hours meter measure different time relationships. ### Terms - Terminal: An identified point where a conductor connects. - Signal: Electrical information passed between devices, rather than necessarily the main power supply. - Rating: A value stating the conditions for which equipment is specified. Concept diagram: Identify the device and form → Read the connections and state → Check the equipment reference A guide to reading this reference. The original symbol illustration and its drawing notes appear below; these boxes are not a wiring diagram. - [Autodesk IEEE Symbol Preview — Instrumentation and Sensors](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-F44D5059-4728-40BD-B9BA-0DE7CFDFAACF.htm) ## What it represents This reference locates clock indication in Autodesk's IEEE-oriented instrumentation and sensors family. A clock indication identifies a time display or clock function in the circuit documentation. The public library uses HIN1P29 for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number. Use the surrounding circuit labels and the project legend to identify the intended operating condition and connection. Carry the same device reference into the schedule or equipment document so the symbol can be reconciled with its real terminals, function and operating limits. State the clock's role, supply and any associated outputs. A clock display and an elapsed-hours meter measure different time relationships. State the clock's role, supply and any associated outputs. A clock display and an elapsed-hours meter measure different time relationships. The linked functional counterpart explains the same operating role in its own drawing context; agreement of every detailed convention mark is not asserted. ## How to read it - State the clock's role, supply and any associated outputs. - A clock display and an elapsed-hours meter measure different time relationships. ## Information to show or reference - Identify the associated device, circuit or diagram boundary. - State the clock's role, supply and any associated outputs. - Cross-reference the equipment data, terminal mapping or operating-state legend needed to interpret the form. ## Important distinction A clock display and an elapsed-hours meter measure different time relationships. ## Facts - Convention evidence: Autodesk IEEE Symbol Preview: Instrumentation and Sensors; published form: Clock. - Public vendor block: HIN1P29. Vendor library token, not an IEEE symbol number. - Information added: State the clock's role, supply and any associated outputs. - Preview: Independent educational concept; consult the publisher and applicable standard for the exact graphic - Artwork scope: Original educational geometry. Exact standard graphics, product ratings and terminal pinouts are not certified. ## Public references - [Autodesk IEEE Symbol Preview — Instrumentation and Sensors](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-F44D5059-4728-40BD-B9BA-0DE7CFDFAACF.htm) — Autodesk. Public IEEE-oriented Instrumentation and Sensors table explicitly lists HIN1P29 as Clock. This supports the vendor convention context, not reproduction of the publisher graphic. ## Graphic scope Independent original educational concept illustration by Elora Grid. Not a certified standards graphic or manufacturer footprint. Unitless; not to scale. Original artwork licence: https://creativecommons.org/licenses/by/4.0/. Publisher material is linked only.