SIERRA INSTRUMENTS M100H2-NR-16-OV1-PV2-V1-C3 Repair Flow Meter Parts/repair

( Brand: Sierra Instruments ), ( Manufacturer Part Number: M100H2-NR-16-OV1-PV2-V1-C3 ), ( Part Type: Flow Meter )

Review SIERRA INSTRUMENTS Mass Flow Meter Parts/repair

The **Sierra Instruments M100H2-NR-16-OV1-PV2-V1-C3** is a high-performance, thermal dispersion mass flow meter designed for precision gas measurement in demanding industrial applications. This model belongs to the **M100H2 series**, which is engineered for reliable, accurate, and repeatable flow measurement in harsh environments, making it an ideal choice for industries such as oil and gas, chemical processing, power generation, and environmental monitoring. The **NR-16** designation indicates a **16 mm (0.625-inch) sensor size**, providing a versatile range for medium to large flow rates while maintaining optimal sensitivity and response time. The **OV1** designation signifies that this unit is equipped with **overvoltage protection**, ensuring robust operation even in high-voltage or electrically noisy environments, which is critical for applications in refineries, petrochemical plants, or near electrical infrastructure.

The **PV2** variant incorporates **Pulse-Width Modulation (PWM) output**, a feature that enhances signal integrity and reduces electrical interference, making it suitable for integration with PLCs, SCADA systems, or other digital control platforms. This output mode is particularly advantageous in applications requiring high-speed data acquisition or where signal noise could compromise measurement accuracy. The **V1** revision level denotes the latest firmware and calibration enhancements, ensuring improved long-term stability, lower drift, and better repeatability over time. Meanwhile, the **C3** classification indicates compliance with **Class III (C3) accuracy standards**, meaning this flow meter delivers ** 1% of reading 0.5% of full scale** performance, which is essential for applications where precision is non-negotiable, such as in gas blending, emissions monitoring, or process optimization.

Physically, the **M100H2-NR-16-OV1-PV2-V1-C3** features a **stainless steel (SS316) construction**, providing exceptional corrosion resistance and durability in aggressive environments, including those exposed to moisture, chemicals, or temperature fluctuations. The sensor housing is designed for easy installation in **pipe sizes ranging from 1 to 4 inches**, with flanged or threaded connections available depending on the application. The **thermal dispersion technology** employed in this flow meter ensures accurate mass flow measurement by detecting temperature differences caused by the gas flow, eliminating the need for pressure or temperature compensation in many cases. This makes it particularly well-suited for **multi-gas mixtures, corrosive gases, or applications where density variations occur**.

For maintenance and repair purposes, this model is designed with **modularity and accessibility** in mind. The sensor assembly can be removed and replaced without disrupting the entire system, reducing downtime and maintenance costs. The **PWM output and digital communication interfaces** (such as Modbus or Profibus, depending on the configuration) allow for seamless integration with diagnostic tools, enabling predictive maintenance and real-time monitoring of sensor health. Additionally, Sierra Instruments provides comprehensive **calibration and recalibration services**, ensuring that repaired or replaced components maintain the high accuracy and reliability expected from this model. Whether used in **gas metering, leak detection, or process control**, the **M100H2-NR-16-OV1-PV2-V1-C3** delivers a robust, high-precision solution that balances performance, durability, and ease of maintenance.

### **Pros and Cons of buying a Sierra M100H2-NR-16-OV1-PV2-V1-C3 Flow Meter (or Its Parts/Repair)**

1. **High Accuracy and Reliability** The Sierra M100H2 is a thermal mass flow meter known for precise measurements, making it ideal for applications requiring strict flow control, such as gas analysis, environmental monitoring, or industrial processes.

2. **Wide Range of Applications** Suitable for measuring gases (including corrosive or contaminated ones) with minimal pressure drop, making it versatile for research, manufacturing, and testing environments.

3. **Durable Construction** The unit is built with materials that resist corrosion and wear, extending its operational lifespan, especially in harsh conditions.

4. **Compatibility with Sierra s Ecosystem** If you already use Sierra instruments, this model integrates seamlessly with their software and calibration tools, reducing compatibility issues.

5. **Long-Term Cost Efficiency** While the initial purchase may be expensive, its durability and accuracy can reduce maintenance and replacement costs over time.

6. **Support from Sierra Instruments** As a reputable manufacturer, Sierra provides technical support, calibration services, and spare parts, ensuring easier troubleshooting and repairs.

7. **Modular Design** Some components (like sensors, electronics, or pressure transducers) may be replaceable, allowing for targeted repairs rather than full unit replacement.

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1. **High Initial Cost** The M100H2 is a premium instrument, and purchasing it outright (or parts for repair) can be expensive compared to alternatives.

2. **Limited Availability of Spare Parts** While Sierra offers support, some specialized components (e.g., certain sensors or electronics) may have long lead times or be discontinued.

3. **Complex Calibration and Maintenance** Requires trained personnel for proper setup, calibration, and maintenance, which may incur additional labor costs.

4. **Potential for Overkill** If your application does not demand high-precision flow measurement, a simpler or lower-cost flow meter might suffice.

5. **Repair Costs Can Add Up** If the unit fails, repairs (especially if requiring replacement of critical components) can be costly, sometimes approaching the price of a new unit.

6. **Software Dependency** Some advanced features rely on Sierra s proprietary software, which may require licensing or updates, adding to long-term costs.

7. **Alternative Options Exist** Competitors like Brooks, Bronkhorst, or other thermal mass flow meters may offer similar performance at a lower cost, depending on specific needs.

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The **Sierra M100H2-NR-16-OV1-PV2-V1-C3** is a high-quality, reliable flow meter ideal for applications where precision and durability are critical. However, its **high upfront and repair costs**, along with the need for specialized maintenance, may not justify the investment for all users. If you already have Sierra equipment or require top-tier accuracy, purchasing or repairing this model can be worthwhile. For budget-conscious users or simpler applications, exploring alternatives may be more cost-effective.

- You need **high-precision gas flow measurement** in research, environmental, or industrial settings.

- You already use Sierra instruments and benefit from ecosystem integration.

- Your budget allows for the **long-term cost efficiency** of a durable, accurate meter.

- Your application does not require **ultra-high precision**, and a lower-cost meter would suffice.

- You are **unable to justify the initial or repair costs** due to budget constraints.

- You prefer **easier maintenance** or have in-house expertise with other brands.

For repairs, **compare the cost of parts vs. a new unit** if the meter is older, a replacement may be more economical. If proceeding, verify **spare part availability** and **warranty coverage** before purchasing.

Details:

Important Notes: Damage present see last photo for detail. The item is in overall physical condition as pictured; however, there visible damage see last photo. Unit is being sold strictly as shown in the photos. Please review all photos carefully for exact condition.

Because of this, it is being sold for parts or repair, as-is. Condition: For parts or repair Not fully functional due to physical damage. Sierra mass flow meter, model M100H2-NR-16-OV1-PV2-V1-C3. Included: Sierra M100H2 mass flow meter unit only.

Untested due to condition. Not Included: Any cables, connectors, or accessories.

part #: m100h2-nr-16-ov1-pv2-v1-c3 price

• $99.00

specifications pneumativalv:

• brand: Sierra Instruments
• mpn: M100h2-nr-16-ov1-pv2-v1-c3
• part type: Flow Meter

returns pneumativalv:

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

offer pneumativalv:

• availability: In Stock
• sold: 0
• started: April 16, 2026
• options: Ship-to-home
• quantity: 1

general pneumativalv:

• condition: For parts or not working
• Pump Flow Controllers > Flow Controllers Meters > Mass Flow Controllers

shipping pneumativalv:

• type: Fixed
• service: USPS Ground Advantage
• transit: 4-9 Days
• class: Standard
• carrier: USPS
• cost: $15.00

seller pneumativalv:

• city: Lorton, Virginia
• rating: 99.9%
• # reviews: 10078

payments pneumativalv:

• credit card: Discover
• other
• wallet: Google-pay

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