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  3. FOXBORO RH916SR-0A

FOXBORO RH916SR-0A Module

Rh916sr-0a Foxboro Used Module

( Brand: Foxboro ), ( Manufacturer Part Number: RH916SR-0A ), ( Model: FOXBORO RH916SR-0A ), ( Part Type: Module )

Review FOXBORO Used Module

The **Foxboro RH916SR-0A** is a high-performance, field-mountable **radiation hazard (RH) sensor module** designed for critical applications in industries where radiation safety, process monitoring, or environmental compliance is paramount. Part of the Foxboro (now part of Emerson) **Spectrum** line of instrumentation, this module is engineered to provide precise, reliable detection of gamma radiation levels in real-time, ensuring operational safety and regulatory adherence in environments such as nuclear power plants, chemical processing facilities, pharmaceutical manufacturing, and radioactive material handling areas. The RH916SR-0A operates on a **scintillation-based detection principle**, utilizing a sodium iodide (NaI) crystal coupled with a photomultiplier tube (PMT) to convert gamma radiation into an electrical signal, which is then processed and output as a standardized analog or digital signal for integration into larger control or monitoring systems.

This module is built to withstand harsh industrial conditions, featuring a **rugged, IP66-rated enclosure** that protects against dust, water ingress, and extreme temperatures, typically operating within a range of **-40 C to 85 C** for extended reliability in demanding environments. The RH916SR-0A is equipped with a **wide dynamic range**, capable of measuring radiation levels from **low background counts to high-intensity exposures**, making it suitable for both routine monitoring and emergency response scenarios. Its **field-replaceable design** simplifies maintenance, as the sensor head can be easily accessed and serviced without requiring full system shutdowns, reducing downtime and operational disruptions.

The module interfaces seamlessly with **Foxboro s Spectrum control systems** or third-party SCADA platforms via **4-20 mA analog output**, **digital communication protocols (e.g., HART, Modbus, or Profibus)**, or direct integration with safety instrumented systems (SIS). This flexibility allows engineers to configure the RH916SR-0A for **alarm thresholds, rate-of-change detection, or integration with emergency shutdown systems**, ensuring rapid response to abnormal radiation levels. Additionally, the module includes **self-diagnostic capabilities**, such as **PMT gain monitoring, high-voltage supply checks, and signal integrity validation**, which enhance system uptime and reduce false alarms.

Beyond its technical specifications, the RH916SR-0A is a critical component in **radiation safety programs**, helping facilities comply with **NRC (Nuclear Regulatory Commission), EPA (Environmental Protection Agency), or ICRP (International Commission on Radiological Protection) standards**. Its compact yet robust construction allows for **wall-mount or panel installation**, with optional **remote sensing probes** for applications requiring extended reach or placement in hazardous locations. Whether deployed in a **nuclear reactor containment building, a radioactive waste storage facility, or a high-radiation industrial process line**, the RH916SR-0A delivers **uncompromising accuracy, durability, and operational resilience**, making it an indispensable tool for industries where radiation safety is non-negotiable.

### **Pros and Cons of buying a Foxboro RH916SR-0A Module**

#### **Pros:**

1. **Compatibility and Integration** The RH916SR-0A is a well-established analog input module designed for Foxboro I/A Series and other Honeywell control systems. It is widely used in industrial automation, ensuring seamless integration with existing Honeywell architectures.

2. **Reliability and Durability** Foxboro (now part of Honeywell) modules are known for their robust construction, designed to withstand harsh industrial environments, including temperature fluctuations, vibration, and electrical noise.

3. **High Accuracy and Precision** The module provides precise analog signal conditioning, making it suitable for applications requiring accurate measurements, such as temperature, pressure, or flow monitoring.

4. **Modular and Scalable** As part of a larger control system, it can be easily expanded or reconfigured to accommodate additional input channels or different signal types, depending on system requirements.

5. **Proven Performance in Industrial Settings** With decades of use in oil & gas, chemical processing, and manufacturing, this module has a track record of dependable operation in critical applications.

6. **Support and Documentation** Honeywell provides extensive technical documentation, troubleshooting guides, and customer support, which can be valuable for maintenance and troubleshooting.

7. **Backward Compatibility** Since it is part of a legacy system, it may be necessary for maintaining older control schemes where newer alternatives are not available or compatible.

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#### **Cons:**

1. **Legacy Technology** The RH916SR-0A is an older model, which means it may lack modern features such as digital communication protocols (e.g., Ethernet/IP, PROFIBUS) or advanced diagnostics compared to newer modules.

2. **Limited Availability** Due to its age, finding replacement parts or technical support may be more difficult than for newer, actively supported Honeywell modules. Some distributors may charge premium prices for obsolete components.

3. **Compatibility Issues with Modern Systems** If integrating with newer control platforms (e.g., Honeywell Experion, Rockwell Studio 5000), additional gateways or converters may be required, adding complexity and cost.

4. **Higher Long-Term Costs** Without active development, the module may require more frequent maintenance, and parts replacement could become more expensive over time.

5. **Training and Expertise** Operators and engineers familiar with older Foxboro systems may be retiring, making it harder to find skilled personnel who can troubleshoot or program the module effectively.

6. **Potential for Obsolescence** Honeywell has shifted focus to newer architectures, and the RH916SR-0A may eventually be discontinued, leaving users dependent on third-party suppliers for support.

7. **Limited Software Support** Newer control software may not fully support or recognize this module, requiring workarounds or custom solutions.

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### **Conclusion**

The Foxboro RH916SR-0A module is a reliable and functional analog input device for legacy Honeywell control systems, particularly in industries where it has been extensively deployed. Its strengths lie in its proven performance, compatibility with older architectures, and robustness in industrial environments. However, its age introduces challenges such as limited availability, lack of modern features, and potential long-term support issues.

If the module is critical to an existing system that lacks viable alternatives, it may still be a practical choice despite its drawbacks. However, if the system is being upgraded or replaced, investing in newer, more supported modules (e.g., Honeywell s current analog input modules or third-party alternatives with better documentation and longevity) would be a more future-proof decision.

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### **Recommendation**

- **If the system is operational and the module is critical:**

Proceed with purchasing the RH916SR-0A, but ensure you have a backup supply chain for parts and consider documenting troubleshooting steps for future maintenance. Budget for potential higher long-term costs.

- **If the system is being modernized or upgraded:**

Avoid relying solely on this module. Instead, evaluate newer Honeywell or third-party alternatives that offer better support, digital communication, and scalability. Consult with a Honeywell-certified integrator to assess migration options.

- **If budget allows:**

Purchase additional spare modules to mitigate risks of unavailability. Store them in a controlled environment to preserve their functionality.

Ultimately, the decision depends on the system s criticality, budget constraints, and long-term maintenance strategy. For new installations or critical upgrades, prioritizing supported, future-proof technology is advisable.

Details:

USED Foxboro RH916SR-0A Module, Shelf A14 Tote 297.

part #: rh916sr0a price

  • $700.00

specifications sensoindustria:

  • brand: Foxboro
  • mpn: Rh916sr-0a
  • model: Foxboro Rh916sr-0a
  • part type: Module

general sensoindustria:

  • PLCs HMIs > PLC Peripheral Modules > PLC Input Output Modules
  • condition: Used

seller sensoindustria:

  • rating: 100.0%
  • # reviews: 2267
  • city: Ray, Michigan

returns sensoindustria:

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

shipping sensoindustria:

  • carrier: USPS
  • cost: $0.00
  • transit: 4-7 Days
  • service: USPS Priority Mail
  • class: Expedited
  • type: Fixed

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offer sensoindustria:

  • best offers: True
  • quantity: 1
  • started: May 28, 2026
  • options: Ship-to-home
  • availability: In Stock
  • sold: 0
part type: module,
category: business & industrial > plcs hmis > plc peripheral modules > plc input output modules, sku: 22885290503271871,
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1 offer $700.00 USD
  • Used. Offer #1 priced at $700.00 + $0.00 shipping estimate = $700.00* total. Shelf A14 Tote 297.FREE SHIPPING

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