FD-M Series Flow Sensor Joint Installation Guide

This document provides instructions for installing joints on FD-M Series flow sensors, specifying that a tool must hold the screw base on the installation side to avoid damage. It includes tightening torque values for different series (23 N·m, 35 N·m, 40 N·m), cautions against over-tightening if leaks occur, and notes that the FD-M**CAT Series must be installed with fluid flowing upward to prevent bubbles and display errors.