FOXBORO 11GM-BS1 Pressure Transmitter 20-200 0-350

( Brand: Foxboro ), ( Manufacturer Part Number: 11GM-BS1 ), ( Part Type: Pressure )

Review FOXBORO Stpressure Transmitter 20-200 Psi 0-350 Range 11gmbs1

The **Foxboro 11GM-BS1 Pressure Transmitter** is a high-performance, field-proven instrument designed for precise and reliable measurement of gauge, differential, and absolute pressure in industrial process control applications. Part of the Foxboro 11GM series, this transmitter combines robust engineering with advanced digital signal processing to deliver accurate, repeatable, and stable performance across a wide range of environments. Engineered with a **20-200 psi (1.38 bar) to 0-350 psi (24.1 bar) full-scale range**, the 11GM-BS1 is well-suited for monitoring low to moderate pressure systems in industries such as oil and gas, chemical processing, water treatment, and HVAC, where consistent and dependable pressure readings are critical. Its **stainless steel diaphragm seal and process connection** (typically " NPT or equivalent) ensures compatibility with a variety of fluids, including corrosive or abrasive media, while the **316 stainless steel housing** provides corrosion resistance and durability in harsh conditions.

The transmitter operates on the principle of a **piezoresistive silicon sensor**, which converts pressure variations into a proportional electrical signal. This signal is then conditioned and linearized by the internal electronics, producing a clean, stable 4-20 mA DC output signal that is easily interfaced with PLCs, DCS systems, or other control devices. The **HART communication protocol** integrated into the 11GM-BS1 enables advanced diagnostic capabilities, allowing operators to remotely monitor device health, adjust calibration, and troubleshoot issues without physical access. This feature enhances system reliability and reduces downtime by providing real-time feedback on sensor performance, such as drift, zero, and span adjustments.

Built to withstand the rigors of industrial environments, the 11GM-BS1 features a **NEMA 4X or IP65-rated enclosure**, protecting internal components from dust, water splashes, and condensation. Its **wide temperature range capability** (typically -40 F to 185 F / -40 C to 85 C, with extended options available) ensures consistent operation in extreme climates, while the **low power consumption** of just 1.5W maximizes efficiency in battery-powered or remote applications. The transmitter s **zero and span adjustments** are accessible via a built-in potentiometer, allowing for easy field calibration to maintain accuracy over time. Additionally, the **overpressure protection** feature safeguards the sensor from sudden spikes, preventing damage and ensuring long-term reliability.

The Foxboro 11GM-BS1 is also designed with **modular flexibility** in mind, offering multiple output options, including 4-20 mA, HART, and Foundation Fieldbus (with compatible models). Its compact and lightweight design simplifies installation and reduces panel space requirements, while the **quick-connect wiring terminals** streamline field installation and maintenance. Whether deployed in a critical process control loop or as part of a larger automation system, this transmitter delivers the precision, durability, and connectivity required for modern industrial applications. With a reputation for dependability and a legacy of performance, the Foxboro 11GM-BS1 remains a trusted choice for engineers and operators seeking a reliable pressure measurement solution.

### **Pros and Cons of buying a Foxboro 11GM-BS1 Pressure Transmitter (20-200 psi, 0-350 psi)**

#### **Pros**

1. **Reliability and Durability**

The Foxboro 11GM-BS1 is a well-established product from Emerson, a trusted name in industrial instrumentation. It is designed for harsh environments, offering robust construction with stainless steel materials and IP65/IP66 protection, making it suitable for outdoor, corrosive, or high-vibration applications.

2. **Wide Pressure Range Compatibility**

The unit supports multiple pressure ranges (20-200 psi, 0-350 psi, and others), allowing flexibility in different process applications. This versatility reduces the need for multiple transmitter models.

3. **High Accuracy and Stability**

Foxboro transmitters are known for their precision, typically offering 0.25% of full-scale accuracy. This ensures reliable measurements in critical process control systems.

4. **Compatibility with HART Communication**

The 11GM-BS1 supports HART (Highway Addressable Remote Transducer) protocol, enabling two-way communication for diagnostics, calibration, and integration with PLCs or SCADA systems. This enhances troubleshooting and system optimization.

5. **Easy Installation and Maintenance**

The transmitter features a quick-connect design for easy field replacement, reducing downtime. It also includes built-in diagnostics to simplify maintenance.

6. **Wide Temperature Range**

It operates effectively in temperature ranges from -40 C to 85 C, making it suitable for various industrial climates.

7. **Long Lifespan and Low Maintenance**

As a proven industrial-grade device, it is built for longevity with minimal maintenance requirements, reducing operational costs over time.

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#### **Cons**

1. **Higher Upfront Cost**

Foxboro products, including the 11GM-BS1, are generally more expensive than generic or lower-end transmitters. This can be a significant investment for budget-conscious buyers.

2. **Potential Obsolescence**

While still widely used, Foxboro s older models (like the 11GM series) may eventually be phased out in favor of newer Emerson technologies (e.g., Rosemount 3051 series). This could lead to future parts or support challenges.

3. **Complexity for Non-Expert Users**

The HART protocol and advanced features require some technical knowledge to configure and troubleshoot. Users without instrumentation expertise may need additional training or support.

4. **Limited Local Availability of Spare Parts**

Depending on the region, finding replacement parts or calibrated units may be difficult, especially for older models. Emerson s support network varies by location.

5. **Potential for Overkill in Simple Applications**

If the application does not require HART communication or high-end diagnostics, a simpler, lower-cost transmitter (e.g., a basic differential pressure transmitter) might suffice.

6. **Calibration and Recertification Costs**

Regular calibration is essential for maintaining accuracy, and this can add to long-term operational expenses.

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### **Conclusion**

The **Foxboro 11GM-BS1** is an excellent choice for industrial applications requiring **high reliability, accuracy, and durability**, particularly in environments with harsh conditions or where HART communication is beneficial. Its versatility in pressure ranges and robust construction make it ideal for critical process control systems.

However, the **higher cost, potential obsolescence, and complexity** may not justify its purchase for simpler or low-budget applications. If budget is a concern, alternatives like newer Rosemount models or other reputable brands (e.g., Endress Hauser, ABB) should be considered.

---

### **Recommendation**

- You need a **long-term, high-reliability solution** for critical pressure measurement.

- Your system requires **HART communication** for advanced diagnostics or SCADA integration.

- The application involves **corrosive, high-vibration, or extreme environmental conditions**.

- You are already invested in **Emerson s ecosystem** and have existing infrastructure compatibility.

- You are operating on a **tight budget** and can find a similarly reliable but lower-cost transmitter.

- Your application does not require **HART or advanced features**, making a simpler model more practical.

- You anticipate **future upgrades** and prefer a newer, more supported model (e.g., Rosemount 3051).

For most **industrial process control applications where reliability and precision are paramount**, the Foxboro 11GM-BS1 remains a strong, well-proven choice. However, weigh the long-term costs and support availability before making a final decision.

Details:

Foxboro, Pressure Transmitter, model: 11GM-BS1, ST D, Span Limits: 20-200 PSI, Range Limit: 0-350 Input Range: 0-100 Invents Process Systems Transmitter. Note the mounting bracket shows surface rust.

part #: 11gmbs1 prices

• $493.00-$1700.00

specifications pneumativalv:

• brand: Foxboro
• mpn: 11gm-bs1
• part type: Pressure

payments pneumativalv:

• wallet: Paypal
• other
• credit card: Mastercard

shipping pneumativalv:

• carrier: UPS
• cost: $33.98
• transit: 3-6 Days
• class: Standard, One-day, Expedited
• service: UPS Ground, UPS Next Day Air, UPS 2nd Day Air
• type: Calculated

returns pneumativalv:

• policy: Returns Accepted
• paid by: Buyer
• method: Money back
• time: 30 Days

general pneumativalv:

• Pump Flow Controllers > Flow Controllers Meters > Mass Flow Controllers
• condition: Used

offer pneumativalv:

• options: Ship-to-home
• sold: 0
• started: March 6, 2026
• availability: In Stock
• quantity: 1
• best offers: True

seller pneumativalv:

• rating: 100.0%
• # reviews: 310
• city: Chattanooga, Tennessee

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