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Liquid Flow Meter - Brass 1/2" Nominal Threaded
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  • Liquid Flow Meter - Brass 1/2" Nominal Threaded
  • Liquid Flow Meter - Brass 1/2" Nominal Threaded
  • Liquid Flow Meter - Brass 1/2" Nominal Threaded
ID: 203239

Adafruit 833 - Liquid Flow Meter - Brass 1/2" Nominal Threaded

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Kamami jest oficjalnym dystrybutorem modułów oraz zestawów deweloperskich Adafruit. Wszystkie płytki tej marki w naszej ofercie są oryginalne i pochodzą bezpośrednio od producenta.

833 - Liquid Flow Meter - Brass 1/2" Nominal Threaded

Description

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!

Example code for the Adafruit liquid flow meters - 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
    • Size: 2.65" x 1.0" x 1.4"
    • RoHS
203239

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