Home > New AgriFlo Series 3 Irrigation Flow Monitors from Envco Environmental Equipment

New AgriFlo Series 3 Irrigation Flow Monitors from Envco Environmental Equipment

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article image The AgriFlo Series 3 Irrigation Flow Monitor

The all-new AgriFlo Series 3 Irrigation Flow Monitor, available from Envco Environmental Equipment , has been designed for functional field use by both irrigators and irrigation supply companies. A dual password system allows irrigator access to flow data, without compromising the integrity of the meter.

The AgriFlo Series 3 Irrigation Flow Monitor case can be padlocked for added security. This irrigation flow monitor gives better than 2% accuracy, even at stream velocities of up to 8m per second.

The AgriFlo Series 3 Irrigation Flow Monitor offers the following advantages:

  • Measure up to three flows with a single AgriFlo
  • High accuracy with no moving parts
  • Measures flow anywhere
  • Versatile straight run requirements
  • Low cost of ownership
  • Doppler Ultrasonics

MACE Doppler instruments transmit an ultrasonic (sound) wave into the flow. This sound wave is reflected by acoustically reflective particles (e.g. air bubbles, suspended solids) and the instrument detects the reflected frequencies. The difference between the transmitted frequency and the received frequencies is directly proportional to the velocity of the stream flow.

The AgriFlo AgriFlo Series 3 Irrigation Flow Monitor offer the following benefits:

  • AgriFlo supports up to three MACE velocity sensors
  • Single full-pipe sensor can be used in pipes from 100mm (4") to 2.5m (100") in diameter
  • Optional combined depth/velocity sensor can be used in open channel or non-full pipe applications
  • Weatherproof, polycarbonate case that can be padlocked for added security
  • Real time display of flow rate and total flow in user selectable units
  • AgriFlo can ‘look’ upstream or downstream
  • Dual password interrogation for data access by irrigators and authorities
  • Calibration function for use where less than ideal straight pipe lengths are available
  • Built-in data logger
  • Minimal pipe and flow obstruction
  • Easy to install, easy to use and maintenance free
  • Accuracy better than 2 %
  • Choice of either solar panel or mains powered charger

In full or partially full pipes, the velocity of the stream flow varies markedly across the cross-section of the pipe. Typically, velocity is zero along the wall of the pipe and increases to a maximum at or about the centre of the pipe.

MACE Doppler instruments receive reflected frequencies from particles moving at these different velocities. The greater the area of flow moving at a particular velocity, the greater the number of reflections with the respective frequency shift. The average velocity of the stream is therefore calculated by averaging those frequency reflections received across the whole stream profile.

Following are specifications of the AgriFlo Series 3 Irrigation Flow Monitor:

  • Weight: 5kg
  • Dimensions 360mm (h) x 260mm (w) x 170mm (d)
  • Enclosure rating IP66
  • Enclosure material UV stabilised polycarbonate
  • Operating temperature: -15° to +50°C (with internal battery installed)
  • Operating temperature: -20° to +65°C (with internal battery removed and external power used)
  • Flow display 16 character x 2 line alphanumeric LCD with backlight Flashing flow indicator
  • Programme memory 2Mb flash
  • Power internal 12V 7.2Ah battery with external solar panel or mains charger
  • Units of measure User definable (metric/US)
  • Application software FloCom+ PC software for system configuration, data downloading and velocity profile testing.
  • Minimum system requirements: Windows XP

Depth measurement:

  • Method: Ceramic pressure transducer with large flat sensing diaphragm which allows straight, undeflected flow over the sensing area to reduce drawdown effects at high stream velocities, and provides for self cleaning with an Alumina ceramic surface.
  • Full scale range: 4m above the transducer face
  • Accuracy: 0.2% of full scale at constant temperature in a static stream; 1% of full scale over a stream 5° to 55°C
  • Resolution: 1mm
  • Overrange: 60m without damage

Velocity Measurement:

  • Method: Submerged Ultrasonic Doppler
  • Range: ±0.025m/sec to ± 8.0m/sec
  • Resolution: 1mm at 1.0m/sec
  • Accuracy: ±1% up to 3.0m/sec
  • Sensor cable: PVC 9mm diameter up to 50m long
  • Insert sensor (velocity only)
  • Shaft dimensions: 330mm (l) x 20mm (d)
  • Head dimensions: 45mm (d) x 25mm (h) (2” BSP thread)
  • Pipe intrusion area: 11.25sqcm (2” BSP)
  • Strap mount sensor (Velocity only or combined velocity/depth)
  • Dimensions: 125mm (l) x 50mm (w) x 16mm (h)
  • Pipe intrusion area: 8sqcm

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