{"product_id":"general-oceanics-2030r6-mechanical-flowmeter","title":"General Oceanics Mechanical Flow Meter, Low Speed","description":"\u003ch4\u003e\u003cstrong\u003e\u003cspan\u003eProduct Code: 203002\u003cbr\u003eMPN: 2030R6\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cbr\u003eThese compact, mechanical flow meters are designed for measuring flow in lakes, rivers, canals, estuaries, sewage outfalls, and offshore applications. They are ideal for determining water speed, volume, or distance. These general-purpose flow meters incorporate a precision-molded rotor coupled directly to a six-digit counter that registers each revolution of the rotor and displays it similar to an odometer (up to 999,999 equal to approximately 14.5 nautical miles). The counter is located within the body of the instrument and is displayed through the clear plastic housing. Flow meters are properly balanced so they maintain a horizontal position when suspended by a towing line. After completing each sampling, simply remove the meter and record the reading and time. By subtracting the first reading from the second, the average speed over a given sampling time can be calculated. Each flow meter measures 8-3\/8″ long, 1-9\/16″ in diameter and includes 18″ of tow line and a stainless steel connecting axle pin. Low-speed flow meter measures from 6 to 100 cm\/sec. \u003ca href=\"https:\/\/dynamic-aqua-supply.myshopify.com\/products\/general-oceanics-mechanical-flow-meter-high-speed\"\u003eHigh-speed\u003c\/a\u003e impeller measures from 10 cm\/sec. to 790 cm\/sec\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-resolution low-speed impeller provides excellent sensitivity for measuring slow currents and low towing speeds.\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow starting threshold of approximately 6 cm\/s enables accurate measurements where standard flowmeters are less effective.\u003c\/li\u003e\n\u003cli\u003eSix-digit mechanical counter records rotor revolutions without batteries or external power.\u003c\/li\u003e\n\u003cli\u003eBalanced free-flooding design ensures stable performance at any operating depth.\u003c\/li\u003e\n\u003cli\u003eCorrosion-resistant materials provide long service life in both freshwater and marine environments.\u003c\/li\u003e\n\u003cli\u003eUniversal bridle mount allows single-point towing or two-point mounting across a plankton net mouth.\u003c\/li\u003e\n\u003cli\u003eEach flowmeter is individually calibrated for accurate calculation of water velocity, tow distance, and filtered water volume.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSpecifications:\u003c\/h4\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eFeature\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eGeneral Oceanics®\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e2030R6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eMechanical low-velocity flowmeter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotor Type\u003c\/td\u003e\n\u003ctd\u003eHigh-resolution low-speed impeller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow Range\u003c\/td\u003e\n\u003ctd\u003e6 cm\/s to 100 cm\/s (0.06–1.0 m\/s; approximately 0.12–2 knots)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStarting Threshold\u003c\/td\u003e\n\u003ctd\u003eApproximately 6 cm\/s (3\/25 knot)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCounter\u003c\/td\u003e\n\u003ctd\u003eSix-digit mechanical counter (000000–999999)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotor Direction\u003c\/td\u003e\n\u003ctd\u003eCounterclockwise\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eClear polycarbonate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNose Cone\u003c\/td\u003e\n\u003ctd\u003eNickel-plated brass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShaft Material\u003c\/td\u003e\n\u003ctd\u003eArmaloy® coated stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotor Material\u003c\/td\u003e\n\u003ctd\u003eCelcon® (PVC optional)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotor Diameter\u003c\/td\u003e\n\u003ctd\u003e16.5 cm (6.5 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e21.3 cm (8⅜ in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight in Air\u003c\/td\u003e\n\u003ctd\u003e225 g (8 oz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight in Water\u003c\/td\u003e\n\u003ctd\u003e113 g (4 oz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eUniversal towing bridle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth Rating\u003c\/td\u003e\n\u003ctd\u003eUnlimited (free-flooding design)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Manufacture\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/dynamic-aqua-supply.myshopify.com\/products\/general-oceanics-wading-rod-for-mechanical-flow-meters\"\u003eOptional Wading Rod with Extendable Pole #203007\u003c\/a\u003e\u003c\/p\u003e","brand":"General Oceanics","offers":[{"title":"Default Title","offer_id":7077170544683,"sku":"203002","price":749.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2593\/8322\/products\/203001.jpg?v=1513641509","url":"https:\/\/dynamicaquasupply.com\/products\/general-oceanics-2030r6-mechanical-flowmeter","provider":"Dynamic  Aqua-Supply","version":"1.0","type":"link"}