FR-LEX20(L) Explosion-Proof Level Sensor Safety Manual

This document provides safety instructions, regulatory compliance information, and operational precautions for the KEYENCE FR Series Level Sensor, specifically the long-range, two-wire, explosion-proof model FR-LEX20(L). It covers essential details on radio communication standards (FCC, ISED, CE, UKCA), ATEX/CSA certifications, installation guidelines, and the use of compatible barrier units (isolated and Zener) for hazardous environments.