KEYENCE FR Series Level Sensor Instruction Manual

This document is the instruction manual for the KEYENCE FR Series long-range level sensors, covering models FR-LM(H)20(L), FR-LP(H)20(L), and FR-LS20(L). It provides critical safety precautions, regulatory compliance information (CE, UKCA, FCC, ISED, CSA, 3-A sanitary standards), radio communication guidelines, installation warnings, and system configuration details for measuring liquid or powder levels in tanks.