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136 ROF

SBEM’s Ultrasonic Rate of Flow Open Channel 136 ROF is an advanced non-contact flow measurement device designed for high-precision monitoring of water flow in Parshall flumes, Rectangular weirs, and Triangular weirs. Utilizing ultrasonic technology, this system calculates flow rates based on liquid level using structured algorithms, eliminating the need for conventional stage-discharge or strap tables. This ensures high reliability, minimal maintenance, and durability in harsh environments. Ideal for applications in irrigation systems, water treatment plants, environmental monitoring, and stormwater management, the 136 ROF offers real-time data, remote communication, and compatibility with ISO-standard installations. Available in split-type mounting, it supports measuring ranges of 2m or 5m with ±0.5% level accuracy and ±5% flow accuracy. With output options like 4–20 mA and RS485, and robust IP68 sensor protection, this product is well-suited for global industries seeking efficient, contactless flow measurement solutions.

  • Features
    • Flow rate calculated by using Algorithim and structure based without strap table.
    • Enhanced accuracy
    • Remote Communication
    • Real time Monitoring
    • Low Mainatance
    • Non Contact measurement
    • Environmental Compatibility
  • Specification
    Measuring Frequency 64KHz
    Working Channel Parshall Flume, Rectangular Weir & Triangular Weir
    Measuring Ranges 2m or 5m
    Dead Band 250mm for 2m or 300mm for 5m depends on Ranges
    Mounting Type Split Type
    Level Accuracy ±0.5% of Full scale (Under factory set condition)
    Flow Accuracy ±5% of Full scale (Under factory set condition for ISO Flumes, Non-ISO Flumes- upto 10%)
    Input Power Supply 24VDC @100mA or 230 VAC @50 Hz (As per request)
    Analog Output 4 Wire 4 to 20mA @ 500 Ω
    Communication Output RS485 Communication (Optional)
    Load Resistance 500Ω
    Display LCD Display
    Installation Method Flanged
    Sensor Material Polypropylene (PP)
    Transmitter Cable entry M16 * 1.5
    Process Connection M60 * 2
    Cable Length (m) 10m (standard), 15m , Higher length on request
    Protection class IP 50 (Converter) & IP 68 (Sensor)
    Ambient Temperature 0 to 60°C
    Ambient Pressure Standard atmospheric Pressure
  • Application
    • Water Resource Management:
    • Irrigation Systems
    • Water Distrubution
    • Water Treatment Plants
    • Environmental Monitoring
    • Flood and Storm water Management:
    • Flood plain Mapping and Hydrological Studies
  • Service Downloads
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