Foxboro 871EC‑REO Electrodeless Conductivity Sensor

Technical Specifications

Model:871EC‑REO

Brand:Foxboro

Series:871EC inductive conductivity sensor

Measurement principle:Electrodeless inductive electromagnetic conductivity measurement,no metal electrode contact with process fluid

Process connection:3/4‑14 NPT tapered thread

Wetted material:Glass‑filled PEEK body,optional elastomer O‑ring seal

Temperature compensation:Built‑in integral thermistor for real‑time liquid temperature compensation

Measuring range:1.0 mS/cm ~ 1000 mS/cm

Max working pressure:2.41MPa(350psi)

Process medium temperature:‑5℃ ~ +120℃

Cable:Integral multi‑shielded signal cable,irradiated polyolefin outer jacket

Compatibility:Matches Foxboro 870ITEC,875EC series transmitters / analyzers

Feature:Immunity to coating and fouling from conductive process media

Environmental standard:Compliant with ISA‑S71.04 Class G3 industrial atmospheric condition

Protection class:IP66

Operating ambient temperature:‑20℃ ~ +60℃

Storage temperature:‑40℃ ~ +85℃

Relative humidity:5%‑95% non‑condensing

Weight:0.73kg

Dimensions:185mm × 62mm thread diameter

Certification:CE,UL

MTBF:>96000 hours

Built‑in function

871EC‑REO electrodeless conductivity sensor adopts inductive electromagnetic principle to measure liquid conductivity without metal electrodes touching process fluid. Built‑in thermistor completes real‑time temperature compensation and delivers compensated signal to matched Foxboro transmitters. Non‑contact design reduces measurement drift caused by medium fouling and scaling,suited for water‑treatment,chemical and pulp‑paper process liquid conductivity monitoring.

Product Brief

871EC‑REO belongs to Foxboro 871EC legacy liquid‑analysis spare‑part family,obsolete original field sensor. Must pair with supporting Foxboro conductivity transmitter or analyzer unit. Widely used for original Foxboro process‑analysis equipment maintenance and renovation. ESD anti‑static protection shall be followed during installation