Emerson Rosemount 3051SFA Flow Meter
Model：3051SFADL120DCHPS2T100032AA1B2RHM5
Manufacturer: ROSEMOUNT
Size: 40*80*25CM
Detail Specification: Annubar Flow Meter
Comment:Carton
Shipping Weight: 20Kg
Estimated Lead Time: 12 Weeks
Payment：T/T
HS CODE：9026809000
product details
Emerson Rosemount 3051SFA Flow Meter
Product Overview
The Rosemount 3051SFA Annubar Flow Meter integrates a patented averaging pitot tube with advanced multivariable transmitter technology into a single, unified flow measurement solution-1. Designed for gas, liquid, and steam applications across line sizes from 2 to 96 inches (50 to 2440 mm), this device measures differential pressure, static pressure, and process temperature simultaneously while calculating fully compensated mass flow 22 times per second within the transmitter-1-3.
Key Technical Specifications
| Parameter | Specification |
| Line Size Range | 2 to 96 in. (50 to 2440 mm)-3 |
| DP Measurement Range | Up to 1000 inH₂O (2.48 bar)-3 |
| Static Pressure Range | Up to 3626 psia / psig (250 bar)-3 |
| Flow Turndown | 200:1 rangedown (14:1 flow turndown)-3 |
| Ultra for Flow Accuracy | ±0.04% of reading-3 |
| Process Wetted Materials | 316 SST, Alloy C-276-3 |
| Communication Protocols | 4-20 mA HART, WirelessHART, FOUNDATION Fieldbus-3 |
| Diagnostics | Loop Integrity, Process Intelligence, Plugged Impulse Line-3 |
| SIL Certification | SIL 2/3 to IEC 61508-3 |
| Warranty | Up to 15 years limited-3 |
Model Number Breakdown: 3051SFADL120DCHPS2T100032AA1B2RHM5
Every Rosemount 3051SFA is defined by its complete model number string. The following breakdown explains each segment of 3051SFADL120DCHPS2T100032AA1B2RHM5:
| Position | Characters | Field | Description |
| 1–8 | 3051SFA D | Product Type + Measurement Type | D = Compensated Mass & Energy Flow Calculations (DP + SP + Temperature)-11-13 |
| 9–11 | L12 | Line Size / Pipe Size | L12 = 12-inch (300 mm) pipe-13 |
| 12 | 0 | Line Size Modifier | 0 = Standard configuration |
| 13–14 | DC | Sensor Material | DC = 316 SST sensor construction-11 |
| 15 | H | Process Connection | H = Flanged (wafer style) |
| 16–17 | PS | Probe Style | PS = Standard insertion probe |
| 18 | 2 | Probe Length | 2 = Standard probe length |
| 19 | T1 | Thermal Well | T1 = Integral thermowell for temperature measurement-11 |
| 20 | 0 | O-Ring Material | 0 = Standard O-ring |
| 21–22 | 00 | Calibration | 00 = Factory standard calibration |
| 23 | 0 | Zero/Span Adjustment | 0 = No external adjustment |
| 24–25 | 32 | Mounting Hardware | 32 = Standard mounting hardware |
| 26–28 | AA1 | Housing Configuration | AA1 = Aluminum housing, standard electronics-11 |
| 29–30 | B2 | Output Protocol | B2 = 4-20 mA with HART 7-11 |
| 31 | R | Hazardous Location Approval | R = ATEX flameproof approval |
| 32–33 | HM | Additional Options | HM = High-temp option and material certification |
| 34 | 5 | Calibration Certificate | 5 = NIST traceable calibration certificate |
This configuration represents a fully compensated mass flow meter for a 12-inch pipe, equipped with 316 SST sensor material, integral thermowell, HART output, and hazardous location approval-11.
Additional 3051SFA Model Examples
Complete model numbers vary by line size, measurement type, and options. Common configurations include:
3051SFADL020DC — For 2-inch lines with fully compensated mass flow calculation
3051SFA1L040DC — Differential pressure only, for 4-inch lines
3051SFA5L080DC — Compensated flow (DP + temperature), for 8-inch lines
3051SFA7L200DC — Process variables only, for 20-inch lines
3051SFA2G120DC and 3051SFA6G160DC represent gas-specific configurations for 12-inch and 16-inch pipelines, respectively-28.
T-Shaped Sensor Design
The patented T-shaped sensor is engineered with an integral thermowell, enabling temperature measurement without additional pipe penetrations-3. This single-penetration design reduces installation complexity and potential leak points while maintaining a small profile in the pipe to minimize permanent pressure loss-1. The stagnation zone is strategically positioned to reduce signal noise and prevent particulate accumulation-3.
Installation Guidelines
For liquid applications, proper orientation is essential to prevent air trapping. The Annubar sensor should be positioned at 45° from vertical down, allowing air to vent and preventing sediment collection within the sensor body-24. Remote-mount transmitter configurations require the transmitter to be positioned below the process piping, with impulse lines routed downward-24. For gas and steam applications, drain/vent ports should be positioned at the bottom to allow condensate drainage.
Ordering Information Reference
Measurement Type codes determine how the transmitter processes input variables:
Type D (as shown above): Fully compensated mass and energy flow calculations using differential pressure, static pressure, and process temperature-13
Types 1-3: Differential pressure with various compensation combinations
Types 4-7: Process variable outputs without internal flow calculations
Sensor stagnation zone design reduces noise and keeps particulates from clogging, contributing to long-term measurement stability
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