FMX21 Simple Debugging

1. Product function introduction

ceramic sensor is a non-oil-filled (dry) measuring cell, that is, the process pressure acts directly on the robust ceramic process isolation diaphragm of the Waterpilot FMX21. The pressure compensation tube transmits atmospheric pressure changes to the back of the ceramic process isolation diaphragm and compensates for it. The deformation of the ceramic process isolator diaphragm produces a capacitance change proportional to the pressure, which is measured by electrodes in the ceramic carrier. The electronic component converts the capacitance change into a signal proportional to the pressure, and the signal has a linear relationship with the medium level.

1. Ceramic sensor 2 pressure compensation tube h liquid level height P total pressure = atmospheric pressure static pressure & rho; medium density g gravity acceleration

Phydr. Displayed pressure value on sensor for static pressure Patm atmospheric pressure Psens

2. Connecting Devices

FMX21 PT100 Wiring Diagram

FMX21 wiring RD red, BK black-, yellow and green are ground wires

A meter B meter Pt100 (non-explosion-proof area) a is not applicable to meter B 10.5 with an outer diameter of 29 mm (1.14 in)... 30 VDC (explosion-proof area), 10.5... 35 VDC c 4… 20 mA d Resistance (RL)e Pt100