Base Model: 875EC-B2C-APSS Reference: 6-3N1 C875ECFUNCTION: Microprocessor-based, line-powered Intelligent Analyzer, when used with Foxboro 871EC or 871FT Sensors, provides high accuracy measurement for electrodeless conductivity. Functions include measurement display, dual analog outputs, dual relay contacts, and an RS-232 Serial Port for remote configuration.BSUPPLY VOLTAGE AND FREQUENCY: 220 Vac, 50 or 60 Hz2ENCLOSURE MOUNTING: Field Mounting to a DN50 or 2-inch pipeCELECTRICAL SAFETY: CSA ordinady locations and Class I, Division 2, Groups A,B,C, and D; Class II, Division 2, Groups F,G; and Class III, Division 2 hazardous locations.AOPTIONAL MODEL SUFFIX(ES) INCLUDED: Storm Door1Sensor / Meas RangeFor 871EC-SP, ConductivityTemp Comp TypeTemp Curve, SaltsTemp Comp InputFactory Default. 100 kohm thermistor (from 871EC-SP,-RE,-LB,-NL,-TF,-EV)