The Rosemount 2051CFP is specifically engineered with an integral orifice primary element to solve the challenges of differential pressure flow measurement in pipes ranging from 0.5 to 1.5 inches. By providing the element within a dedicated meter run, it ensures high flow measurement accuracy and repeatability that standard orifice plates cannot achieve in small line size flow meter applications.
Wireless Connectivity and Industrial Safety ComplianceAs a SIL 2/3 certified transmitter, the 2051CFP meets rigorous IEC 61508 safety standards. The integration of WirelessHART technology creates a secure, cost-effective network, delivering >99% data reliability and significantly reducing the total cost of ownership by eliminating expensive wiring costs.
"This industrial instrumentation supports HART 4-20mA and PROFIBUS protocols. The 316 SST wetted material provides durability for corrosive media. Users can utilize the local operator interface (LOI) for rapid field commissioning. The leak-tested assembly reduces fugitive emissions by 70%. With a 100:1 rangedown and scaled variable output, it is the premier flow assembly for low flow rates. The SmartPower module ensures a 10-year maintenance-free lifecycle."
| Feature | Specification Details |
| Line Size | 0.5 to 1.5 in. (15 to 40 mm) |
| Rangedown | Up to 100:1 (5:1 flow turndown) |
| Wetted Material | 316 SST |
| Output | Differential pressure, scaled variable |
| Safety | SIL 2/3 certified to IEC 61508 |
| Power Life | Up to 10-year life (SmartPower™) |
| Update Rate | 1 sec. to 60 min. (User selectable) |
Choosing the correct flow meter is the first step toward long-term measurement stability. If your process involves small-bore piping between 0.5" and 1.5" (15 to 40 mm), the Rosemount 2051CFP is the superior choice; however, for larger line sizes, our [Rosemount 2051CFA Annubar Flow Meter] offers a low-pressure-loss alternative. Its primary element is factory-calibrated within a dedicated meter run, ensuring the high precision required for low-flow environments. For material selection, the standard 316 SST wetted parts offer excellent durability for clean liquids and gases, though we recommend verifying NACE compliance for projects involving aggressive or sour chemicals. Additionally, consider your infrastructure: if you are instrumenting remote points where cabling is cost-prohibitive, the WirelessHART® protocol provides a secure, cost-effective solution with over 99% data reliability.
The 2051CFP is engineered to simplify field setup and eliminate common installation errors. Because the primary element is pre-integrated into the meter run, the risk of plate misalignment—a common cause of inaccuracy in small pipes—is virtually eliminated. Furthermore, every unit arrives leak-tested and calibrated from the factory, which reduces potential leak points by up to 70% compared to traditional field-assembled components. During installation, simply ensure the process flow direction aligns with the arrow marked on the meter run to guarantee accurate differential pressure generation. This "plug-and-play" design significantly accelerates your commissioning timeline while enhancing site safety.
Designed for a low "Total Cost of Ownership," the 2051CFP offers nearly maintenance-free operation for up to a decade. Field commissioning is streamlined via the built-in Local Operator Interface (LOI), allowing technicians to configure the device using intuitive buttons without the need for external handheld communicators. For wireless users, the SmartPower™ module provides up to 10 years of reliable life and is easily replaceable in the field without removing the transmitter from the process line. To ensure ongoing signal integrity, we recommend utilizing the basic diagnostics suite through your control system to monitor sensor health and proactively manage your process efficiency.
Q: Why choose the Rosemount 2051CFP for small pipe sizes?
A: The 2051CFP features an integral orifice plate pre-installed in a meter run, which ensures higher accuracy and repeatability in 0.5" to 1.5" lines compared to field-installed plates.
Q: How does this meter help reduce maintenance costs?
A: With its factory leak-tested assembly and the 10-year SmartPower™ module life, the 2051CFP minimizes leak points and eliminates the need for frequent battery or wiring maintenance.
Q: Can the 2051CFP be configured in the field without special tools?
A: Yes, the built-in Local Operator Interface (LOI) allows technicians to perform commissioning and adjustments directly using intuitive on-device buttons.
