The Rosemount™ 3415 4+1 Dual‑Configuration Gas Ultrasonic Flow Meter delivers high‑integrity custody transfer measurement by combining a four‑path chordal meter with a reflective check path in a single body.
This dual-path design enables early detection of buildup, blockage, and flow disturbances while providing continuous verification to reduce measurement uncertainty, protect revenue, and ensure audit-ready compliance in natural gas applications.​
Daniel 3415 Gas Ultrasonic Meter
Rosemount™ 3415 4+1 Dual-Configuration Gas Ultrasonic Flow Meter

Specs

Line Sizes
DN100 to DN600 (4-in to 24-in)
Fluid Type
Gas
Accuracy
4-Path Meter: ±0.1% of reading relative over entire calibration range
1-Path Meter: ±0.2% of reading with calibration (±1.5% of actual vol without calibration)
Repeatability
4-Path Meter: ±0.05% of reading for 5 to 100 ft/s (1.5 to 30.5 m/s)
1-Path Meter: ±0.1% of reading for 5 to 100 ft/s (1.5 to 30.5 m/s)
Velocity
Rated up to 100 ft/s (30 m/s) with over-range performance exceeding 125 ft/s (38 m/s) on some sizes
Operating Gas Temperature
-50°C to +100°C (-58°F to +212°F)
Operating Pressure Range
0 to 4,000 psig (276 barg)
Materials
Carbon steel and stainless steel
Operating Temperature Range
–58°F to +212°F (–50°C to +125°C)​
Safety and Environmental Compliance
UL / cUL ​
Custody Transfer Compliance
AGA 9​

Features

  • Detect pipeline wall buildup early with a dedicated reflective check path that increases sensitivity to contamination and flow profile changes.​
  • Reduce custody transfer uncertainty through independent verification from chordal and reflective measurement paths with different failure modes.​
  • Increase operational flexibility with >100:1 rangeability to support wide flow conditions with fewer meter runs.​
  • Identify blockage, contamination, and abnormal flow conditions before measurement bias occurs using advanced ultrasonic diagnostics.​
  • Simplify troubleshooting with Smart Meter Verification, which translates diagnostic data into actionable insights and recommended actions.​
  • Visualize flow profile conditions in real time with diagnostics that identify swirl, asymmetry, and turbulence.​
  • Automate gas property calculations using embedded AGA 8 compressibility and AGA 10/GERG-2008 speed-of-sound equations for consistent, audit-ready reporting.​
  • Enable flexible system integration with high-speed 3410 Series Electronics featuring advanced diagnostics, Ethernet connectivity, and expanded I/O.

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