PJ-F20(C)/PJ-F40(C) Expandable Area Sensor Instruction Manual

This document is the instruction manual for the PJ-F20(C) and PJ-F40(C) series expandable area sensors, detailing their specifications, installation, wiring, and operation. It covers the assembly of base units with expansion units A and B, mounting procedures using intermediate supports, indicator statuses, output circuits, and safety precautions for correct use.