• Liquid Flow Meter - Plastic 1/2" NPT Threaded

Liquid Flow Meter - Plastic 1/2" NPT Threaded

  • Product Code: YF-201
  • Stock

    Warehouse Stock Status Location
    Centurion In Stock A6 / N19 + N20
    Stellenbosch In Stock C0019 + Z2048
  • R98.00 (price excl. VAT)


Liquid Flow Meter - Plastic 1/2" NPT Threaded

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 plastic tube that can measure how many spins the pinwheel has made through the plastic wall. This method allows the sensor to stay safe and dry.

Specificcations and Pin out:

  • The sensor comes with three wires
  • Red DC Power (5-24VDC power)
  • Black (ground)
  • Yellow (Hall effect pulse output).
  • Each puls is about 2.25 millilitres
  • Maximum output current : 15mA

Application Circuit

flow meter arduino

Code Example



// Reading liquid flow rate using an Arduino 
// Code adapted by Charles Gantt from PC Fan RPM code written by Crenn@thebestcasescenario.com
// http:/themakersworkbench.com http://thebestcasescenario.com 

volatile int NbTopsFan;            //measuring the rising edges of the signal
int Calc; 
int hallsensor = 2;                //The pin location of the sensor

void rpm ()                        //This is the function that the interupt calls
{
  NbTopsFan++;                     //This function measures the rising and falling edge of signal
}                                  //The setup() method runs once, when the sketch starts

void setup() 

{
 pinMode(hallsensor, INPUT);       //initializes digital pin 2 as an input
 Serial.begin(9600);               //This is the setup function where the serial port is initialised
 attachInterrupt(0, rpm, RISING);  //and the interrupt is attached
}
                                   // the loop() method runs over and over again
                                   // as long as the Arduino has power
void loop () 
{
 NbTopsFan = 0;                    //Set NbTops to 0 ready for calculations
 sei();                            //Enables interrupts
 delay (1000);                     //Wait 1 second
 cli();                            //Disable interrupts
 Calc = (NbTopsFan * 60 / 7.5);    //(Pulse frequency x 60) / 7.5Q = flow rate in L/hour
 Serial.print (Calc, DEC);         //Prints the number calculated above
 Serial.print (" L/hour\r\n");     //Prints "L/hour" and returns a new line
}

Resources



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Tags: Liquid, Flow, Meter, Threaded liquid, flow, meter, plastic, 1/2

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