Foxboro 873EC Electrodeless Conductivity Analyzer

Technical Specifications

Model:873EC

Brand:Foxboro

Series:873‑Series electrochemical analyzer

Function:Inductive conductivity measurement,display and signal conversion for aqueous process medium

Sensor compatibility:Works with Foxboro 871EC‑series electrodeless conductivity sensors

Mounting:1/4‑DIN standard panel cut‑out mounting

Display:Front‑panel digital readout for conductivity and medium temperature

Operation:Membrane keypad for range setting,alarm setup and output scaling

Memory:EEPROM non‑volatile storage,retains all configuration parameters after power loss

Signal output:Isolated 4‑20mA analog output,metal housing version supports dual isolated outputs

Alarm feature:Dual independent configurable alarm relays,high‑low threshold adjustable

Power supply:120VAC 50/60Hz nominal

Measurement unit:μS/cm,mS/cm or percentage span selectable

Temperature compensation:Automatic liquid temperature compensation via sensor built‑in thermistor

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

Housing:NEMA 4X plastic / metal enclosure,front‑panel dust‑proof protective storm door

Protection class:IP45(panel front side)

Horizontal operating temperature:0℃ ~ +60℃

Storage temperature:‑40℃ ~ +85℃

Relative humidity:5%‑95% non‑condensing

Weight:0.82kg

Dimensions:92mm × 92mm × 183mm

Certification:CE,UL,FM

MTBF:>93000 hours

Built‑in function

873EC electrodeless conductivity analyzer receives inductive signal from 871EC field‑mount sensors and calculates liquid conductivity value. Built‑in automatic temperature compensation eliminates measurement deviation caused by medium temperature fluctuation. Front‑panel keypad completes range calibration,alarm threshold and output scaling without opening instrument housing. EEPROM memory keeps all parameters intact during power interruption. Dual alarm relays provide switch signal for upper‑system interlock protection,widely applied for water‑treatment,pulp‑paper and chemical process liquid conductivity monitoring.

Product Brief

873EC belongs to Foxboro 873‑Series legacy liquid‑analysis spare‑part family,obsolete original process‑analysis instrument. It must be paired with matching 871EC‑series electrodeless conductivity sensor. Widely used for original Foxboro analysis‑equipment maintenance and renovation. ESD anti‑static protection shall be followed during installation