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Liquid Flow Meter - Brass 1/2 Nominal Threaded

SKU: ADA833

$41.95 AUD, inc GST
$38.14 AUD, exc GST

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Liquid Flow Meter - Brass 1/2 Nominal Threaded

SKU: ADA833

$41.95 AUD, inc GST
$38.14 AUD, exc GST

Retired Product

Replaced by: Liquid Flow Meter
This product has been replaced by: Liquid Flow Meter

Measure liquid/water flow for your solar, computer cooling, or gardening project using this handy basic flow meter. This sensor sit in line with your water line, and uses a pinwheel sensor to measure how much liquid has moved through it. The pinwheel has a little magnet attached, and there's a hall effect magnetic sensor on the other side of the brass tube that can measure how many spins the pinwheel has made through the metal wall. This method allows the sensor to stay safe and dry.

The sensor comes with three wires: red (5-18VDC power), black (ground) and yellow (Hall effect pulse output). By counting the pulses from the output of the sensor, you can easily track fluid movement: each pulse is approximately 2 milliliters. Note this isn't a precision sensor, and the pulse rate does vary a bit depending on the flow rate, fluid pressure and sensor orientation. It will need careful calibration if better than 10% precision is required. However, its great for basic measurement tasks!

Adafruit have an example Arduino sketch that can be used to quickly test the sensor - it will calculate the approximate quantity of fluid in liters and display on an LCD or the serial monitor.

Technical Details

Electrical:

  • Working Voltage: 5 to 18VDC
  • Max current draw: 15mA @ 5V
  • Working Flow Rate: 1 to 30 Liters/Minute
  • Working Temperature range: -20°C to 80°C
  • Working Humidity Range: 35%-80% RH
  • Maximum water pressure: 1.75 MPa
  • Output duty cycle: 50% +-10%
  • Output rise time: 0.04us
  • Output fall time: 0.18us
  • Flow rate pulse characteristics: Frequency (Hz) = 8.1 * Flow rate (L/min) - 3
  • Pulses per Liter: 485
  • Durability: minimum 300,000 cycles

Mechanical:

  • 1/2" nominal pipe connections, non-tapered, 0.78" outer diameter, 1/2" of thread
  • The input of these adapters is 1/2" NPT aka National Pipe Thread (tapered) and the output is 1/2" BSPP aka British Standard Parallel Pipe (non-tapered).
  • Size: 2.65" x 1.0" x 1.4"

This product is listed in:

Documentation and Resources:
  • The Maker Revolution
  • The Maker Revolution celebrates the creation of new devices and the modification of existing ones - the transition from a consumer buying goods to eventually having a major part in their creation. The Maker Revolution places strong emphasis on free (...

Product Comments

We deliver Australia-wide with these options:

  • $3 for Small Items (4-6 days, not tracked, only available on selected small items)
  • $6.95 for Standard Post (2-4 days, tracked)
  • $8.32 for Express Post (1-2 days, tracked)
  • Pickup - Free! Only available to customers who live in the Newcastle region

International Orders - the following rates are for New Zealand and will vary for other countries:

  • $11.49 for Pack and Track (3+ days, tracked)
  • $16.50 for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount might increment based on the weight of your order.

Our physical address:

Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

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