Foxboro 876EC Conductivity / Concentration Analyzer

876EC Loop-Powered Transmitter

The Foxboro 876EC is a two-wire loop‑powered, intelligent transmitter engineered for electrodeless conductivity (also known as inductive or toroidal conductivity) and concentration measurements. Paired with sensors such as the 871EC, 871FT, EP307, EP402, or FT10 series, it offers precise, flexible performance across a broad range of process liquids, from ultrapure water to high-concentration acids, bases, or salts. Designed for simplicity and adaptability, this transmitter allows storage of up to three application profiles complete with display formats, temperature compensation, chemical calibration curves, and output assignments. Users can auto-switch between applications based on configurable thresholds, saving both time and calibration errors. Compact and rugged, the 876EC comes in a NEMA 4X / IP66 field-mount housing, certified for hazardous areas (FM Zone 0/2, ATEX, CSA, IECEx), and supports 4‑20 mA analog output plus HART digital communication, simplifying integration with modern asset management systems.

Ideal for:

Chemical and Petrochemical
Water/ Wastewater
Pulp and Paper
Mining
Metals
Food and Beverage
Clean-in-Place Systems
Batch Operations
Hazardous Environments

Features:

Non-contact toroidal sensing
~10 µS/cm to 2000 mS/cm measurement range
Supports concentration measurements
accepts 100 ohm or 1000 ohm RTDs, as well as 100k ohm thermistors
Active compensation via preloaded curves plus user inputs
Two-wire 4-20mA loop-powered with HART
Stores up to 3 application profiles
Auto switches profiles
Can store up to 100 events
Backlit LCD display screen
4-button control keypad
NEMA 4X / IP66 rated
Certified for:
- FM, CSA, ATEX, IECEx
- Class I, II, III, Div 1 & 2
- Zone 0, Zone 2
Compatible with foxboro electrodeless sensors