BAMO Mesures SAS

BAMO Mesures SAS

- Model 758-02 - Air Bubbling Level Transmitter

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BAMOBUL level sensor is wall mounting; housing protection IP 55, including a pressure sensor, an electronic amplifier and an air generator. Pneumatic connections are of quick coupling type for 6 x 4 mm RISLAN tubing. All wirings are with screw connectors, cable glands ensure the water tightness. The air bubbling stem is of stainless steel 316 L, equipped with a sliding fixing device allowing an exact position of “0 flow rate”. Support is a stainless steel plate to mount on the channel.

  • BAMOBUL is designed for Venturi channel or Weir plates (documentation 755-01) water level measurements up to 500 mm.
  • This application requires a highly accurate level measurement as between water height and level the relation is exponential.
  • The instrument is associating an air generator to a 4-20 mA pressure transmitter extremely accurate. The sensor permanently measures the necessary pressure to create bubbling against the water column.
  • This pressure difference is directly proportional to the water height (the pressure is equal to hydrostatic pressure of water column).
  • To limit errors due to the airflow fluctuation, adjustment are easy with integrated valves. Access to the '0 flow rate' calibration and the full measurement scale are permitted to the end-user.
  • This instrument is well known for its reliability and the accuracy of signal output even whit particles in the fluid or foam over the surface.

Level transmitter

  • Scales: 0...30 / 0...50 / 0...100 / 0...300 / 0...500 mm WC (others on request)
  • Please specify the desired scale when ordering
  • Temperature limits: 0…50°C
  • Accuracy: ± 1% full scale
  • Response time: <10 ms

Air generation

  • Flow rate: Approximately 250 L/h (free outlet)
  • Maximal pressure: 200 mbar (approximately 2000 mm WC)
  • Pump body: ABS
  • Air flow adjustment: From 0 to maximal flow, regulated for a constant flow rate
  • Power supply: 230V – 50/60 Hz – 8 VA

Transmitter

  • Adjustment: Level 0 by push button
  • Default detection: Tube breaking or chocked outlet
  • 1 Volt free change over contact output, switching power 230V / 5A
  • Output: 4-20mA (power supply included) / max 600 Ohm / limit 23 mA
  • Presentation: wall mounting, IP55
  • Dimensions: 257 x 236 x 95 mm

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