Product Overview

The 761CNA-AT is a microprocessor-based digital single-station controller designed for localized process control applications. As part of the Single Station Micro Plus series, it supports advanced control algorithms and an intuitive operator interface for regulating flow, temperature, pressure, and other continuous process variables.

Configured for 120 VAC power environments, the 761CNA-AT integrates seamlessly into existing Foxboro control infrastructures. Its form factor enables direct retrofit into legacy 760/761 series installations, allowing system upgrades without extensive rewiring or panel modification.

Technical Specifications

Key Advantages and Retrofitting

• Direct Replacement Capability
  Matches the mechanical footprint of legacy Foxboro 760 / 761 series controllers, minimizing downtime during modernization.

• Microprocessor-Based Accuracy
  Eliminates drift associated with pneumatic or analog controllers while supporting advanced tuning and non-linear control strategies.

• Enhanced Diagnostics
  Built-in self-test and fault detection routines assist maintenance teams in rapid troubleshooting and loop verification.

Technical FAQ

Q: Is the 761CNA-AT compatible with 220 VAC power systems?
A: No. This model is designed exclusively for 120 VAC operation. Applying 220 VAC will damage the internal power transformer.

Q: What does the “Micro Plus” designation indicate?
A: The Plus version includes enhanced firmware, supporting advanced mathematical functions, signal characterization, and improved internal diagnostics compared to standard 761 models.