{"product_id":"liquid-flow-meter-brass-12-nominal-threaded-discontinued","title":"Liquid Flow Meter - Brass 1\/2\" Nominal Threaded [Discontinued]","description":"\u003cp\u003eMeasure 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.\u003cbr\u003e\u003cbr\u003eThe 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!\u003c\/p\u003e\u003cp\u003eComes with a 3-pin JST SM connector, you can use these cables to make a quick attachment\u003cbr\u003e\u003cbr\u003eWe 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.\u003c\/p\u003e\u003ch2\u003eTechnical Details\u003c\/h2\u003e\u003cdiv id=\"tab-technical-details-content\" class=\"panel-collapse collapse in\"\u003e \u003cdiv class=\"row\"\u003e \u003cdiv class=\"col-lg-12 col-md-12 col-sm-12 col-xs-12\"\u003e\n\u003cp\u003eElectrical:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWorking Voltage: 5 to 18VDC\u003c\/li\u003e\n\u003cli\u003eMax current draw: 15mA @ 5V\u003c\/li\u003e\n\u003cli\u003eWorking Flow Rate: 1 to 30 Liters\/Minute\u003c\/li\u003e\n\u003cli\u003eWorking Temperature range: -20°C to 80°C\u003c\/li\u003e\n\u003cli\u003eWorking Humidity Range: 35%-80% RH\u003c\/li\u003e\n\u003cli\u003eMaximum water pressure: 1.75 MPa\u003c\/li\u003e\n\u003cli\u003eOutput duty cycle: 50% +-10%\u003c\/li\u003e\n\u003cli\u003eOutput rise time: 0.04us\u003c\/li\u003e\n\u003cli\u003eOutput fall time: 0.18us\u003c\/li\u003e\n\u003cli\u003eFlow rate pulse characteristics: Frequency (Hz) = 8.1 * Flow rate (L\/min) - 3\u003c\/li\u003e\n\u003cli\u003ePulses per Liter: 485\u003c\/li\u003e\n\u003cli\u003eDurability: minimum 300,000 cycles\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMechanical:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1\/2\" nominal pipe connections, non-tapered, 0.78\" outer diameter, 1\/2\" of thread\u003c\/li\u003e\n\u003cli\u003eThe 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).\u003c\/li\u003e\n\u003cli\u003eSize: 2.65\" x 1.0\" x 1.4\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e \u003c\/div\u003e\n\u003cul id=\"product-files\"\u003e \u003c\/ul\u003e \u003cdiv class=\"row\"\u003e\u003cdiv class=\"col-lg-2 col-md-3 col-sm-3 col-xs-4\"\u003e\u003c\/div\u003e\u003c\/div\u003e \u003c\/div\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":56199970324802,"sku":"vix1789699918072","price":21.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1013\/4392\/0450\/files\/liquid-flow-meter---brass-12-nominal-threaded-discontinued_1.jpg?v=1789699923","url":"https:\/\/bouclebox.shop\/products\/liquid-flow-meter-brass-12-nominal-threaded-discontinued","provider":"My Store","version":"1.0","type":"link"}