Electric Clocks & Timers Symbols
Electric clocks are directly or indirectly powered by electricity. The accuracy of the clock depends on the time base, which is usually an oscillator that, from a reference, generates a periodic signal.
A timer is a electric device, often programmable, that allows you to measure time.
| Symbol | Description | Symbol | Description | |
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Electric clock Generic symbol + Info |
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Electric clock / Timer + Info |
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Master clock + Info |
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Time clock + Info |
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Time Recorder Clock input control |
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Time clock | |
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Timer |  |
Timer switch + Info |
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Control timing Electric clock control |
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Clock source | |
Electrical test equipment symbols, (meters and recorders)Download symbols |
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