Caldon 280CiRN LEFM ultrasonic liquid flowmeter

Applications

• Direct proving
• Custody transfer
• Leak detection
• Refinery inlet and outlet
• Offloading
• Import and export metering

Benefits

• Industry-leading 8-path chordal design for optimal linearity and repeatability, with dramatically reduced sensitivity to swirl and asymmetry effects
• 5-diameter minimum upstream pipe run and no requirement for flow conditioner, reducing total cost of ownership
• Enhanced provability via reduced-nozzle design, which improves meter stability and repeatability
• Reduced-nozzle design that enables continued confidence in measurements through transitional Reynolds regimes in high-viscosity fluid applications
• Transducers that are isolated from the process and outside the pressure boundary for ease of service
• No recalibration or zeroing required if transducer is replaced
• In-house transducer manufacturing for maximum quality control
• Continuous logging capabilities
• Optional corrosion-, adhesion-, and contamination-resistant internal coating

Features

• Available sizes: 6 to 36 in
• Linearity: ±0.10% over 15:1 nominal flow range
• No minimum limit on Reynolds number
• Advanced signal processing with real-time diagnostic analysis
• Internal resistance temperature detector (RTD) for thermal expansion compensation
• G3 electronics with rich I/O and integral SD card
• Electronics that can be mounted integrally or remotely (on pipe)
• Caldon USM Advisor™ diagnostic software
• Compliance with API MPMS Chapter 5.8, International Organization of Legal Metrology (OIML) Recommendation R 117-1 Edition 2019 (E) Accuracy Class 0.3, Measuring Instruments Directive (MID) 2014/32/EU, and NACE MR0175

How it improves performance

The Caldon™ 280CiRN LEFM ultrasonic liquid flowmeter features an 8-path, reduced-nozzle design that enables continued confidence in measurement performance through transitional Reynolds regimes where fullbore ultrasonic meters are susceptible to increased uncertainty from dramatic changes in flow profile. The reduced-nozzle design smooths the transition from turbulent to laminar flow profiles, allowing the meter to operate with no minimum Reynolds number limitation. This design also improves provability and repeatability, with a reduction in required volume relative to a fullbore meter.