Product Description

The Foxboro 130M-N5 is a precision pneumatic process controller from the well-established Foxboro 130 Series, engineered for high-reliability control of pressure, flow, and level variables. Operating entirely on instrument air, it is ideally suited for hazardous or electrically hostile environments where electronic instrumentation is impractical or prohibited.

The controller incorporates a Manual/Automatic (M/A) transfer mechanism, allowing operators to smoothly switch between local manual control and automatic regulation without disturbing the process. Its finely tuned bellows and nozzle–flapper assembly delivers high sensitivity and fast response while maintaining excellent long-term mechanical stability and accuracy.

Technical Specifications

Application

The 130M-N5 is widely used in oil & gas, pulp and paper, and chemical refining industries, particularly in:

• Remote wellhead and pipeline control

• Intrinsically safe refinery units

• Plants with legacy pneumatic control systems

Because it requires no electrical power, the controller remains fully operational during power outages as long as instrument air is available—making it highly suitable for critical and safety-related control loops.

Frequently Asked Questions

Q: What does the “N5” suffix indicate?
A: In Foxboro model nomenclature, suffixes typically denote internal configurations or scale options. For the 130M-N5, it commonly refers to a specific scale or mounting arrangement.

Q: Can the 130M-N5 interface with a modern DCS?
A: Yes. Using P/I (pneumatic-to-current) converters, the 3–15 psi output can be converted to an electrical signal for monitoring and integration with modern DCS platforms.