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BROOKS 111196 Flow Controller Sccm Gas Oxygen 5850I 250

111196 Brooks 5850i Mass Flow Controller 250 Sccm Gas Oxygen

( Brand: Brooks ), ( Manufacturer Part Number: 111196 ), ( Part Type: Flow Controller ), ( Maximum Flow Rate: 250 Sccm ), ( Gas Media: O2 Oxygen ), ( Country Of Origin: United States )

Review BROOKS Mass Flow Controller 250 Sccm Gas Oxygen

The **Brooks 5850i Flow Controller (Model 111196, 250 sccm for Oxygen Gas)** is a precision-engineered mass flow controller designed to deliver unparalleled accuracy and reliability in gas delivery applications where consistency and safety are paramount. Part of Brooks Instrument s renowned 5850i series, this device is engineered for industries ranging from semiconductor manufacturing and laboratory research to medical and pharmaceutical environments, where precise control of oxygen flow is critical. The controller operates on a thermal mass flow measurement principle, utilizing a highly sensitive thermal sensor to monitor gas flow in real-time with exceptional repeatability and low drift, ensuring that oxygen is dispensed at the exact specified rate down to fractions of a standard cubic centimeter per minute (sccm). Its robust construction features a stainless steel body and corrosion-resistant components, making it ideal for handling oxygen and other reactive gases without compromising performance or safety. The 5850i s digital interface provides intuitive control via its front-panel display, allowing users to set, monitor, and adjust flow rates with ease, while its built-in PID (Proportional-Integral-Derivative) control algorithm ensures stable and responsive regulation even under fluctuating downstream pressures. Compatible with a wide range of gases, including oxygen, nitrogen, and other specialty gases, this flow controller is equipped with a 250 sccm maximum flow capacity, making it versatile for applications requiring moderate to low flow rates. Additionally, its modular design allows for easy integration into existing gas delivery systems, and its compliance with industry standards such as those set by the Semiconductor Equipment and Materials International (SEMI) and the International Organization for Standardization (ISO) ensures it meets stringent quality and performance benchmarks. Whether used in a controlled laboratory setting, a high-precision manufacturing process, or a medical oxygen therapy system, the Brooks 5850i Flow Controller delivers the precision, durability, and reliability needed to maintain optimal operational efficiency.

### **Pros and Cons of buying a Brooks 111196 5850i Flow Controller (250 sccm, Oxygen Compatible)**

#### **Pros**

1. **High Precision and Accuracy** The Brooks 5850i series is known for its mass flow control technology, which provides accurate and stable gas flow regulation, even at low flow rates (down to 0.1 sccm). This is critical for applications requiring precise control, such as laboratory gas delivery, semiconductor manufacturing, or medical device calibration.

2. **Oxygen Compatibility** Unlike some mass flow controllers (MFCs) that are limited to inert gases, the 5850i is explicitly designed for reactive gases like oxygen, making it suitable for oxidation processes, combustion studies, or applications where oxygen is a key component.

3. **Wide Turndown Ratio** The 250 sccm model offers a broad operational range (typically 0.1 250 sccm), allowing flexibility for different experimental or industrial needs without requiring multiple controllers.

4. **Digital Control and Communication** The unit supports digital interfaces (e.g., RS-232, USB, or Ethernet in some models), enabling integration with data acquisition systems, PLCs, or automated workflows. This is useful for remote monitoring and control in research or manufacturing settings.

5. **Durability and Reliability** Brooks instruments are industrial-grade, built to withstand continuous operation in controlled environments. The 5850i series is known for longevity, reducing downtime and maintenance costs over time.

6. **Calibration and Traceability** Brooks provides certified calibration certificates, ensuring traceability to national standards (e.g., NIST), which is essential for compliance in regulated industries like pharmaceuticals or aerospace.

7. **Low Leakage and Tight Shutoff** The internal design minimizes leakage, which is important for applications where gas purity or containment is critical (e.g., vacuum systems or hazardous gas handling).

8. **Compatibility with Common Gases** While primarily oxygen-rated, it can also handle other reactive gases (e.g., nitrogen dioxide, chlorine) if specified, expanding its utility beyond pure oxygen applications.

9. **User-Friendly Interface** The controller often includes a front-panel display for manual operation, and software tools (e.g., Brooks FlowView) simplify setup and troubleshooting.

10. **Warranty and Support** Brooks offers comprehensive warranties (typically 1 2 years) and technical support, which can be valuable for troubleshooting or replacements.

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#### **Cons**

1. **High Initial Cost** The Brooks 5850i is a premium product, and the 250 sccm model will likely cost significantly more than basic analog or lower-end digital MFCs. The price may be prohibitive for small labs or hobbyist applications.

2. **Complexity for Beginners** The advanced features (e.g., digital communication, calibration settings) may require training to operate effectively. Users unfamiliar with mass flow control may struggle with setup or troubleshooting.

3. **Power Requirements** Some models require a stable power supply (e.g., 12 24V DC or 110/220V AC), which may necessitate additional infrastructure in certain setups.

4. **Maintenance Needs** While durable, the internal components (e.g., thermal mass flow sensors) may require periodic recalibration or replacement, especially in harsh environments (e.g., high humidity or temperature fluctuations).

5. **Limited Flow Range for Some Applications** At 250 sccm, this model may be insufficient for high-throughput processes (e.g., large-scale gas delivery in industrial manufacturing). Larger models (e.g., 5850i with 1000 sccm or higher) would be needed for such cases.

6. **Gas-Specific Considerations** While oxygen-compatible, the unit may not be suitable for extremely corrosive or high-pressure gases without additional modifications or safety measures.

7. **Software Dependency** Full functionality often relies on proprietary software (e.g., Brooks FlowView), which may require a license or additional cost. Open-source alternatives may lack advanced features.

8. **Physical Size and Installation** The unit may occupy more space than smaller MFCs, requiring careful placement in constrained environments (e.g., benchtop labs).

9. **Potential for Overkill** For simple, low-budget applications (e.g., basic lab gas delivery), a less expensive analog or basic digital MFC might suffice without the added complexity and cost.

10. **Resale Value** Like most specialized lab equipment, the resale value of a Brooks 5850i may depreciate over time, though it remains a reliable used purchase.

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### **Conclusion**

The **Brooks 111196 5850i (250 sccm, oxygen-compatible)** is a high-performance mass flow controller ideal for applications demanding **precision, reliability, and compatibility with reactive gases**. Its strengths lie in **accuracy, digital control, durability, and calibration traceability**, making it a strong choice for **research labs, semiconductor manufacturing, medical device testing, or industrial processes involving oxygen or other reactive gases**.

However, its **high cost, complexity, and overkill for basic applications** may not justify the purchase for **budget-conscious users or simple gas delivery tasks**. If your application requires **low-flow, high-precision oxygen control** and you can invest in training and maintenance, this controller is an excellent long-term solution. For less demanding needs, a **lower-cost analog or basic digital MFC** (e.g., from Omega, Alicat, or other brands) may be a more practical alternative.

### **Recommendation**

- **Buy the Brooks 5850i if:**

- You need **precise, stable oxygen flow control** (e.g., for oxidation reactions, calibration, or semiconductor processes).

- Your workflow requires **digital integration** (e.g., automation, data logging, or PLC control).

- You operate in a **regulated industry** (e.g., pharmaceuticals, aerospace) where **calibration traceability** is mandatory.

- You can justify the **higher upfront cost** with long-term reliability and reduced maintenance headaches.

- **Avoid or Consider Alternatives if:**

- Your budget is limited, and you can achieve similar results with a **lower-cost MFC** (e.g., Alicat, Omega, or Bronkhorst models).

- Your application involves **high-flow rates** (>250 sccm), in which case a **higher-range Brooks model** (e.g., 5850i with 1000 sccm) would be better.

- You lack **technical expertise** to configure and maintain digital MFCs, as simpler analog controllers may be more user-friendly.

- Your gases are **non-reactive and inert**, in which case a **generic digital MFC** (e.g., for nitrogen or argon) would suffice.

For most **research labs or industrial settings requiring oxygen control**, the Brooks 5850i is a **superior choice** despite the cost. For **hobbyists or small-scale users**, exploring **mid-range digital MFCs** (e.g., Alicat s MCS series) could offer a balanced alternative. Always compare **specifications, warranty, and long-term support** before purchasing.

Details:

part #: 111196 prices

  • $175.00-$385.23

specifications pneumativalv:

  • brand: Brooks
  • mpn: 111196
  • part type: Flow Controller
  • maximum flow rate: 250 Sccm
  • gas media: O2 Oxygen
  • country of origin: United States

offer pneumativalv:

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

general pneumativalv:

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

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  • class: Standard
  • cost: $0.00
  • transit: 3-9 Days
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part type: flow controller, maximum flow rate: 250 sccm, gas media: o2 oxygen, country of origin: united states,
category: business & industrial > pump flow controllers > flow controllers meters > mass flow controllers, sku: 12063466725215633,
Brooks 111196 Is Similar To:
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5 offers $175.00–$385.23 USD
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