photoelectric liquid-level indicator

photoelectric liquid-level indicator

[¦fōd·ō·i′lek·trik ¦lik·wəd ¦lev·əl ′in·də‚kād·ər]

(engineering)

A level indicator in which rising liquid interrupts the light beam of a photoelectric control system; used in a tank or process vessel.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.