Foxboro P0930AT Pressure Transmitter Fieldbus Module

Product Description

The Foxboro P0930AT is a multifunctional industrial device that appears in different configurations depending on system requirements. It is most commonly implemented as a pneumatic/electronic pressure transmitter for continuous process measurement, while certain system integrations classify it as a communication or interface module within the Foxboro I/A Series architecture.

In transmitter configurations, the unit delivers stable pressure measurement across a broad operating range with consistent accuracy. In control system deployments, it may function as a fieldbus interface or termination module, enabling communication between distributed control components and field networks.

Its mechanical robustness, material flexibility, and environmental protection make it suitable for deployment in demanding process industries.

Technical Specifications

General Information

• Model: P0930AT

• Manufacturer: Foxboro

• Product Category: Pressure Transmitter / Fieldbus Interface / Termination Module

• System Compatibility: Foxboro I/A Series (for communication variants)

Pressure Measurement Version

• Measurement Range: Configurable from low differential ranges (inches of water) up to 10,000 psi

• Accuracy: ±0.25% of calibrated span

• Output Signal: 4–20 mA DC (industry standard loop-powered)

• Response: Stable measurement suitable for continuous process control

• Power Supply: 24 VDC typical

Mechanical & Materials

• Enclosure Rating: NEMA 4 / IP66 (dust-tight and water-resistant)

• Wetted Materials Options:

• 316L stainless steel

• Hastelloy C (corrosion-resistant applications)

• Monel (marine or aggressive environments)

• Electrical Interface: M12 connector or terminal block wiring

• Housing: Heavy-duty industrial enclosure for field installation

Environmental Conditions (Transmitter)

• Operating Temperature: –40°C to +121°C

• Humidity: Up to 95% RH, non-condensing

• Suitable for outdoor and hazardous industrial locations

Fieldbus Interface Variant

• Communication Standard: FOUNDATION Fieldbus H1 (IEC 61158)

• Fieldbus Ports: Dual redundant channels

• Transmission Rate: 31.25 kbps

• Segment Power Supply: Up to 300 mA output

• Isolation: 1500 Vrms between ports and system backplane

• Power Consumption: Approximately 4–5 W

• Operating Temperature: –20°C to +70°C

Termination / Communication Module Variant

• Function: Signal termination and protocol interface

• Supported Protocols: Modbus, PROFIBUS, DeviceNet

• Mounting: DIN rail or panel installation

• Dimensions: Compact form factor for cabinet integration

• Operating Temperature: –40°C to +70°C

Key Features

• Configurable as pressure transmitter or communication interface module

• Measurement accuracy maintained within ±0.25% of span

• Wide pressure coverage from low differential to high-pressure applications

• Industrial-grade enclosure rated for harsh environmental exposure

• Optional redundant fieldbus communication for high system availability

• Electrical isolation and diagnostics for reliable network operation

• Multiple material selections for corrosion resistance

Applications

• Process pressure monitoring in oil and gas production

• Chemical and petrochemical plant instrumentation

• Hydraulic and fluid control systems

• Distributed control system (DCS) communication networks

• Environmental and utility monitoring systems

FAQ

Q: Is the P0930AT strictly a pressure transmitter?
A: Not always. While widely used as a pressure transmitter, some system configurations define it as a fieldbus or communication module within Foxboro I/A Series systems.

Q: What communication options are available?
A: Depending on the version, it may support FOUNDATION Fieldbus, Modbus, PROFIBUS, or DeviceNet protocols.

Q: Can it operate in harsh environments?
A: Yes, the enclosure rating (NEMA 4 / IP66) and material options allow installation in corrosive, wet, or high-temperature environments.