SQ-R FLOW METER

NON-CONTACT FLOW MEASUREMENT FOR WASTEWATER TREATMENT PLANTS, SEWERS AND INDUSTRIAL WATER CHANNELS

The SQ-R measures continuously and contact-free the flow rate of effluent channels, partially filled pipes and technical ducts in industry and water supply. The SQ-R is not in contact with the water and can therefore be operated without being affected by debris and entrained solids. With its compact design and versatile mounting options, it is the ideal choice for flow measurements in manholes of facilities and sewers.

Description

FEATURES AND ADVANTAGES

  • Non-contact measurement, maintenance-free system
  • Calculation of discharge by continuous measurement of flow velocity and water level
  • No construction measures necessary in the sewer
  • Waterproof and resistant housing also for use in aggressive environments
  • Wide measuring range from a few liters up to several cubic meters per minute
  • High data availability even with intensive turbidity and high solids content
  • Easy integration into existing measuring and control systems
  • Self-check function supports correct installation and high data quality
  • Versatile measurement output via RS-485, Modbus, SDI-12, pulse and analog signal
  • Integrated hydraulic model for precise flow calculations
  • Easy configuration with SQ-Commander software

TECHNICAL DATA

GENERAL

  • Dimensions 272 x 153 x 186 mm (1 bracket for pipe with Ø 30 mm)
  • Total weight 1.55 kg
  • Protection class IP 68
  • Power supply 6 … 30 V DC
  • Power consumption 1.5 Ah per day (for a measurement interval of 60 s)
  • Operating temperature -35° … 60° C
  • Storing temperature -40° … 60° C
  • Protection over voltage protection, reverse power protection, lightning protection

LEVEL MEASUREMENT

  • Measuring range 0.05 … 8 m (0.16…26.25 ft)
  • Radar frequency 80 GHz (W-band)
  • Beam angle 8
  • Near field blanking 0.05 m
  • Resolution ≤ 2 mm

VELOCITY MEASUREMENT

  • Measuring principle Doppler-radar
  • Measuring range 0.08 … 16 m/s (depending on flow conditions)
  • Accuracy +/- 0.01 m/s; +/- 1 % FS
  • Resolution 1 mm/s
  • Direction recognition +/-
  • Measuring duration 5 … 240 sec.
  • Measuring interval 8 sec. … 5 h
  • Measuring frequency 24 GHz (K-Band)
  • Radar opening angle 12°
  • Distance to water surface 0.05 … 35 m (0.16…114.83 ft)
  • Required minimum swell 3 mm