Hall effect water flow sensors include 3 main parts: sensor body, hall effect part and paddle wheel sensor. Depending on the neighborhood or how the town operates, the water meter should have a hinged cover or a screwed metal cover that cant be tampered with by someone other than a city employee or a water company.Hall effect flow sensor provides low cost solution for water flow measurement. A digital water meter is checked periodically because many factors, such as the environment, can affect the water meter.
Thus, we will mainly introduce copper and plastic.DIGITEN Water Flow Control Meter LCD Display Controller+G1/2' Water Hall Sensor Flow Meter Flowmeter Counter 1-30L/min+G1/2' Solenoid Valve Normally Closed N/C+DC 12V Power Adapter 4.0 out of 5 stars 86Interfacing water flow meter with arduino uno. Stainless steel is expensive, so it is not main selling item. They are stainless steel, copper and plastic plastic(e.g.POM).
When flow sensors start to count flow rate, the magnetic hall effect sensor outputs an electrical pulse with every period.Sensus water meter has been around for more than 1years, was once called Pittsburgh Equitable Metering Company, and has become the most recognizable among the water meter industry. By the operation the flow sensors can calculate how much liquid flows through it.The hall effect parts inside flow sensor is sealed from the liquid and can make the sensor under dry and safe status. Hall effect water flow sensors can sense water flow by built-in wheel sensor. One can control the valve manually and digitally in order to limit the flow of water through the. Flow meter is actually a valve.
By the flow totalizer, flow rate is accumulated.Food safe flow meters have been widely used for pharmaceutical, food, beverage and other industries. The flow rate and pulse has certain formula relationship.We can also supply secondary flow totalizer to gather pulses from the hall effect water flow sensor. With the pulse output, user can log and convert it to flow rate at liters per minute. The pulse from hall effect sensor is simple square wave,thus it is very easy to use. It supports hall effect pulse output and can output pulse to PLC, oscilloscope, or other pulse counter device.
Flow should fall into range, otherwise the flow sensor can't work well. For higher temperature, require special order.1.POM material is manufactured as FDA standard.2.Each size has its Min/Max flow rate. Temperature range: <=60 Deg.C.
That means each pulse may express different flow rate(liter). For hall effect sensor, its pulse equivalency is not fixed. The accuracy of small pipe can reach to 99%.Flow meter/flow sensor requires calibration to improve its accuracy. Generally speaking, the pipe is smaller, the accuracy is higher. The flow is more stable, the accuracy is better. The accuracy has a close relationship with flow stability.
Test for several times (3-5 times) and get the average value.Hall effect flow sensor is designed for economic liquid flow measurement,so its flow rate range is not very wide and max pipe is not big. While calibrate, please certain time pulse quantity and flow rate as standard data. Users can do the calibration during actual operation.
Paddle wheel, turbine, ultrasonic,magnetic,etc. If pipe size is over 100mm, it is also better to consider other type flow meters,e.g. So when you select hall effect flow sensor, you should check whether its flow rate is suitable.
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