FOXBORO 823DP-I3S1NM2 Stewart Pressure Transmitter

( Brand: Foxboro ), ( Manufacturer Part Number: 823DP-I3S1NM2 ), ( Type: Pressure Transmitter ), ( Country Of Origin: United States )

Review FOXBORO Stewart Instrument Electronic Pressure Transmitter

The **Foxboro 823DP-I3S1NM2 Stewart Pressure Transmitter** is a high-performance, field-proven instrument designed for precise and reliable measurement of differential pressure in demanding industrial applications. Part of the robust **Foxboro 823DP Series**, this transmitter combines advanced engineering with rugged construction to deliver exceptional accuracy, stability, and durability in harsh environments. Built with a **Stewart pressure sensing element**, this device excels in applications requiring high repeatability and long-term stability, making it ideal for industries such as oil and gas, chemical processing, power generation, and water/wastewater treatment.

The **823DP-I3S1NM2** features a **differential pressure range** of 0 100 inches of water column (0 25.4 kPa), though it can be configured for other ranges as needed, ensuring versatility across a wide array of fluid handling and process control scenarios. Its **integrated electronics** provide a **4 20 mA DC current loop output**, a standard industry protocol that ensures compatibility with most PLCs, DCS systems, and control panels, while also offering **HART communication** for advanced diagnostics, calibration, and device configuration. This dual-modality output enhances operational efficiency by enabling both basic analog signaling and intelligent, field-adjustable functionality.

Constructed with **stainless steel (SS316) wetted parts**, the transmitter is inherently resistant to corrosion, scaling, and chemical degradation, making it suitable for applications involving aggressive fluids, high temperatures, or corrosive media. The **sealed diaphragm design** ensures that the sensing element remains protected from external contaminants, while the **flanged or threaded process connections** (depending on the mounting option) provide flexibility in installation, accommodating various pipeline configurations. The unit s **IP65-rated enclosure** further reinforces its resilience against dust, moisture, and environmental factors, ensuring reliable performance in both indoor and outdoor settings.

One of the standout features of the **823DP-I3S1NM2** is its **self-diagnostic capabilities**, which allow operators to monitor sensor health, detect potential failures, and perform remote adjustments without interrupting production. The **HART protocol** enables real-time communication, facilitating predictive maintenance and reducing downtime. Additionally, the transmitter s **zero and span calibration** can be easily performed in the field, minimizing the need for costly lab recalibrations and ensuring consistent performance over extended periods.

Designed with **modularity and ease of maintenance** in mind, the **823DP-I3S1NM2** features a **quick-disconnect design**, allowing for rapid removal and replacement of the sensing element without affecting the process. This modular approach simplifies servicing and extends the device s operational lifespan, contributing to lower total cost of ownership. Whether deployed in critical process control applications, such as flow measurement in pipelines or level detection in tanks, or in environmental monitoring systems, this transmitter delivers **unmatched precision, reliability, and operational flexibility**.

In summary, the **Foxboro 823DP-I3S1NM2 Stewart Pressure Transmitter** represents a pinnacle of industrial pressure measurement technology, blending **high accuracy, robust construction, and intelligent communication** to meet the demands of modern process industries. Its combination of **corrosion-resistant materials, field-configurable features, and seamless integration with control systems** makes it an indispensable asset for engineers and operators seeking dependable performance in challenging environments.

### **Pros and Cons of buying a Foxboro 823DP-I3S1NM2 (Stewart Pressure Transmitter)**

#### **Pros**

1. **Reliability and Durability**

The Foxboro 823DP series is a well-established product line known for its robust construction and long-term performance in industrial environments. The Stewart pressure transmitter variant is designed for harsh conditions, including high-pressure and corrosive media, making it suitable for oil and gas, chemical processing, and power generation applications.

2. **Wide Measurement Range**

This transmitter supports a broad pressure range (from low differential pressures to high gauge/absolute pressures), allowing it to be used in various process applications without requiring multiple units.

3. **High Accuracy and Repeatability**

Foxboro instruments are engineered for precision, with the 823DP series offering excellent accuracy ( 0.25% of span or better) and repeatability, which is critical in industries where process control and safety are paramount.

4. **Compatibility with Foxboro Control Systems**

As part of the Foxboro ecosystem, this transmitter integrates seamlessly with Foxboro s DCS (Distributed Control System) platforms, reducing integration challenges and improving overall system performance.

5. **Explosion-Proof and Hazardous Area Certification**

The unit is likely certified for use in hazardous environments (e.g., Class I, Division 1 or Zone 1/2), making it safe for operation in flammable or explosive atmospheres.

6. **Long Service Life**

Foxboro s reputation for durability means this transmitter can operate reliably for decades with proper maintenance, reducing downtime and replacement costs over time.

7. **Standardized Design**

The modular design allows for easy calibration, maintenance, and replacement of components, simplifying field service and reducing training requirements for operators.

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#### **Cons**

1. **High Initial Cost**

Foxboro instruments are premium products, and the 823DP-I3S1NM2 is no exception. The upfront cost may be significantly higher than that of generic or less-branded transmitters, which could be a barrier for budget-conscious buyers.

2. **Limited Availability of Spare Parts**

While Foxboro is a trusted brand, finding replacement parts or technicians with expertise in Foxboro systems can be challenging in some regions, potentially increasing maintenance costs or downtime if support is delayed.

3. **Complexity in Configuration and Calibration**

Foxboro s advanced features, while beneficial, require trained personnel to configure, calibrate, and troubleshoot. This can increase training costs and operational complexity compared to simpler, off-the-shelf transmitters.

4. **Potential for Obsolescence**

Foxboro has evolved its product line over the years, and while the 823DP is still supported, newer models may offer additional features (e.g., digital communication protocols, wireless capabilities). Future upgrades or replacements might require migrating to a newer platform.

5. **Dependence on Foxboro s Support Network**

If the user is not already integrated into Foxboro s ecosystem, they may need to invest in training or hire specialized personnel to fully utilize the transmitter s capabilities, adding to operational overhead.

6. **Potential for Overkill in Some Applications**

For low-budget or non-critical applications where high precision is not required, a Foxboro transmitter may be more expensive than necessary. A simpler, lower-cost alternative might suffice.

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### **Conclusion**

The Foxboro 823DP-I3S1NM2 Stewart pressure transmitter is an excellent choice for industries requiring **high reliability, accuracy, and compatibility with Foxboro s control systems**. Its robustness, wide measurement range, and hazardous-area certifications make it ideal for demanding environments such as oil and gas, chemical processing, or power plants. However, its **high cost, complexity, and dependency on Foxboro s support network** may not justify the investment for smaller operations or less critical applications.

For users already invested in Foxboro s ecosystem or operating in high-stakes industries where uptime and precision are non-negotiable, this transmitter is a **strong, long-term investment**. For others, a cost-effective alternative (e.g., a reputable generic transmitter with similar specifications) might be more practical without sacrificing performance.

### **Recommendation**

- You are part of a Foxboro control system environment.

- Your application requires high accuracy, durability, and hazardous-area compliance.

- Long-term reliability and minimal downtime are priorities.

- You have access to trained personnel for maintenance and calibration.

- Budget constraints make the upfront cost prohibitive.

- Your application does not require Foxboro s advanced features.

- You prefer a simpler, more widely supported transmitter with lower maintenance costs.

- You anticipate frequent upgrades or changes in your control system architecture.

In summary, the Foxboro 823DP-I3S1NM2 is a **premium industrial-grade transmitter** best suited for mission-critical applications where its strengths outweigh its drawbacks. For less demanding applications, a more affordable yet equally capable alternative may be preferable.

Details:

STEWART INSTRUMENT FOXBORO 823DP-I3S1NM2 ELECTRONIC PRESSURE TRANSMITTER. Condition: New, but shows shelf wear from storage.

part #: 823dpi3s1nm2 prices

• $146.24-$425.00

specifications automationjack:

• brand: Foxboro
• mpn: 823dp-i3s1nm2
• type: Pressure Transmitter
• country of origin: United States

general automationjack:

• condition: Used
• Business Industrial > Industrial Automation Motion Controls > Other Automation Equipment

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• started: June 5, 2026
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