Product Description

The 870ITPH-FYFNZ-7 is a high-performance intelligent electrochemical transmitter designed for accurate pH, ORP, or ISE (Ion Selective Electrode) measurements in demanding industrial process environments. As a member of the Foxboro 870ITPH series, it converts low-level electrochemical sensor signals into a stable 4–20 mA output with HART communication, ensuring reliable transmission to control and monitoring systems.

The transmitter incorporates advanced diagnostics such as sensor coating detection, aging analysis, and reference integrity monitoring, significantly reducing unplanned maintenance and improving measurement reliability. Its rugged, corrosion-resistant housing and integrated local display enable dependable operation and easy field interaction in harsh chemical and wastewater applications.

Technical Specifications

Application Scenarios

The 870ITPH-FYFNZ-7 is widely deployed in:

• Industrial wastewater treatment systems

• Pharmaceutical high-purity and CIP water monitoring

• Chemical neutralization and reaction vessels

• Power plant cooling tower chemistry control

• Pulp and paper bleaching and effluent processes

Its robust diagnostics and resistance to fouling make it especially suitable for high-contamination and chemically aggressive environments.

Technical FAQ

Q: Can the 870ITPH-FYFNZ-7 measure both pH and ORP?
A: Yes. The transmitter is software-configurable and can be switched between pH and ORP modes by selecting the appropriate configuration and connecting the corresponding sensor.

Q: What does the “-7” suffix indicate?
A: In Foxboro model coding, the final suffix typically denotes specific certification, mounting, or regional compliance options. For the 870ITPH-FYFNZ-7, it generally reflects a configuration aligned with global industrial approval requirements.