Foxboro 873CC-BIYFGZ Conductivity Analyzer

The Foxboro 873CC-BIYFGZ, also cataloged as the 873CC Industrial Conductivity Analyzer, operates as a dedicated hardware component for continuous monitoring of liquid conductivity and resistivity within industrial process networks. The instrument processes electrochemical data streams by executing dual-channel sensor signal acquisition directly from contacting conductivity probes.

Hardware Specifications

Process Control & DCS Instrumentation Properties

The analyzer incorporates a dual-sensor input structure designed to handle simultaneous, independent measurement routines across separate water lines without channel cross-talk. The analog output circuits are configured to translate electrochemical variables into isolated 4-20 mA loops for direct integration into DCS controllers. Automatic temperature compensation is maintained through continuous tracking of an integrated 100 Ohm RTD element, stabilizing the 16-bit algorithmic calculation of conductivity, resistivity, or removal rate when exposed to fluctuating process fluid temperatures.

Frequently Asked Questions

Q: What are the electrical parameters and ratings for the onboard alarm relays?

A: The instrument features two independent, configurable alarm relays (normally open/normally closed) rated to interrupt resistive loads up to 5 A at 125 V AC or 5 A at 30 V DC.

Q: How does the unit preserve its configuration data during a complete primary power interruption?

A: The analyzer utilizes non-volatile EEPROM memory to store all user-defined calibration factors, scale limits, and temperature compensation coefficients, preventing data loss without requiring internal backup batteries.

Field Installation Guidelines

• Enclosure Grounding: Connect the dedicated internal ground terminal of the NEMA 4XKI metal housing directly to the plant instrument earth bus to suppress electromagnetic field interference.
• Sensor Wire Shielding: Route sensor interconnecting cables through dedicated, grounded metal conduit. Keep sensor lines physically isolated from high-voltage AC power distribution conduits to eliminate signal degradation.
• Panel Cutout Alignment: Ensure the panel cutout matches factory dimensions exactly. Seat the integrated gasket flat against the panel surface before tightening the mounting brackets to maintain environmental sealing integrity.