Sensor Products: Mainstream Flowmeters for Open Channels and Part-filled Pipes

Mainstream Portable Flowmeter

Perfect for short term and extended field studies with the highest quality performance and competitively priced. This portable option is derived from the Mainstream fixed installation flowmeter and is ideal for short term or extended field studies.

Mainstream portable flowmeterDesigned for use in the harshest of field conditions the Mainstream Portable flowmeter is constructed from ultra high impact structural copolymer polypropylene, is fully submersible and highly resistant to chemical attack.

With a built-in 12V 7Ah rechargeable battery, this portable has up to three months endurance.

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System Details:

System Unit:
  • Case body ultra high impact structural copolymer polypropylene.
  • Highly resistant to chemical attack.
  • Protection classified to IP65. Case meets MIL-STD 4150-H.
  • Dimensions 270 mm wide x 250 mm deep x 180 mm high. Weight 5 kg.
  • Operating temperature range - 10° C to 70° C.
Velocity Probe:
  • Streamlined µPVC moulding.
  • Dimensions 105 mm long x 50 mm wide x 20 mm high.
  • Cable exit and pressure sensor mounting at rear.
  • Reinforced cable- standard length 10 m, maximum length 500 m.
  • Intrinsically safe option to EEx ia IIC T5 (-20°C to +40°C)/T4(-20°C to +80°C).
Level Sensor:
  • Stainless steel pressure transmitter with desiccant protected atmospheric reference.
  • Sensor interface fully compatible with alternative level sensors providing 4:20 mA signals.
Measurement Display:
  • Large character LCD configurable for most engineering units.
  • Display sequence is user selectable from date, time, level, flow cross-sectional area, signal quality, flow velocity, flow rate, quantity of flow in last hour and total flow quantity.
  • LCD legend available in various languages.
Local Communications:
  • RS232 compatible local serial port. Automatic error detection protocol.
PC Software:
  • Windows 98, Me, 2000 and XP compatible
  • Mainstream Communicator software included with each flowmeter.
  • Intuitive point-and-click user interface for flowmeter configuration, diagnostics and real-time displays.
  • Features include graphical interface to input the pipe/channel cross-section, simple level sensor calibration procedure, real time displays of measurements and velocity histogram, facilities for remote diagnostics, plus backup and restore of Mainstream configuration.
Data Logger:
  • Integral data logger with recording rate configurable for 30 seconds, 1, 2, 3, 5, 6, 10, 12, 15, 20, 30 or 60 minute intervals.
  • Facility to organise logged data into daily records with user selectable start time.
  • Logger capacity approximately 250,000 measurements corresponding to more than 6 months data at 2 minute intervals.
  • Logger incorporates data compression for rapid data retrieval using Mainstream Communicator software.
  • Recorded measurements output in spreadsheet compatible format.
Switch Outputs:
  • Two opto-isolated switch outputs, each rated at 60V ac/dc and 250 mA maximum current.
  • Switches independently programmable to open or close at a user defined level, ultrasound signal quality, velocity or flow rate.
  • Switches also configurable to generate pulses to indicate a user defined flow quantity.
Power Supply:
  • Built in 12V 7Ah rechargeable battery for up to three months endurance.
  • External 12V and 24V power inputs for extended endurance.
Performance:
  • Bi-directional velocity measurement with better than 100:1 turndown ratio.
  • Velocity measurement range from 10 mm/S to 5 m/S.
  • Resolution 1 mm/S.
  • Guaranteed no zero offset or drift.
  • Level measurement conversion accuracy better than 0.05% of full scale.
  • Flow measurement accuracy depends on installation and operating conditions. Typically better than 5% in evaluation trials.


Other documents are available on our Support Resources page