YF-B6 Water Flow Sensor with Temperature Sensor - Brass - G3/4"

With these sensors you can easily measure the flow and temperature of liquids (water).

The output of the sensor gives 6.6 pulses per second with a duty cycle of approximately 50% for every liter of liquid that passes through it per minute: Q [L/min] = f_pulse[Hz ]/6.6.

Specifications:

• Water flow sensor:
  • Supply voltage: 5-18V DC
  • Signal voltage: 4.7V (with 5V DC power supply)
  • Connector: JST-SM 3p female
  • Pulse frequency per L/min: 6.6Hz*
  • Duty cycle pulse: 50% ±10%
  • Measuring range: 1-30L/min
  • Accuracy: ±3%*
• Temperature sensor:
  • Type: NTC
  • Resistance: 50KΩ
  • Beta value: 3950
  • Connector: JST-SM 2p female
  • Thread: M8
• Water connection: G3/4"
• Maximum water pressure: 17.5bar
• Working temperature: 1-100°C
• Suitable liquids: Water**
• Material: Brass
• Dimensions: See images

Pinout (water flow sensor):

• Red: Vcc/plus (supply voltage)
• Black: GND/min
• Yellow: Signal

Package contents:

• 1x YF-B6 Water Flow Sensor
• 1x NTC 50K Temperature Sensor

See the following page for a tutorial with a similar water flow sensor: How to Use Water Flow Sensor - Arduino Tutorial

Modify the following piece of code around line 17:

float calibrationFactor = 4.5;

To:

float calibrationFactor = 6.6;

*Note: This is a factory specification under specific circumstances. Should the sensor be used in a situation where accuracy is required, it is recommended to calibrate the sensor in that specific setup.

**Note: We cannot provide any warranty when this product is used with any liquid other than clean spring/tap water (non-potable).

Note: The liquid can only flow in one direction, this is indicated by an arrow.

Check the tab "Downloads" for more information and/or downloads.