General > General Technical Chat
Seriously, anyone know the story and meaning of "OL" on multimeters?
<< < (4/8) > >>
Neilm:
Surely it means "Oh Lord" - given I most often see it on a continuity reading and I now have an open circuit to find in a bunch of wires
Cyberdragon:

--- Quote from: BeBuLamar on April 24, 2021, 11:31:17 am ---While it may not make sense it means "Over Load" because the DMM manufacturers said so. I just wonder which DMM was first to display "OL". Early DMM display a 1 for this.

--- End quote ---

Nixie (or other early digital display) multimeters have indicator lights for "Over Load". I'm assuming LCD DMMs in the 80s soon followed.
bdunham7:
Some of them spell it out for you.

rfclown:
It isn't up for a vote. Read the manual.
TimFox:
I repeat the important bit mentioned above:  "OL" works nicely on 7-segment displays, but "OR" is perhaps harder to read.
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