{"product_id":"general-oceanics-2030r-mechanical-flowmeter","title":"General Oceanics Mechanical Flow Meter, High Speed","description":"\u003ch4\u003e\n\u003cstrong\u003eProduct Code: 203001\u003cbr\u003eMPN: 2030R\u003c\/strong\u003e\u003cmeta charset=\"UTF-8\"\u003e\n\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. High-speed impeller measures from 10 cm\/sec. to 790 cm\/sec. and \u003ca href=\"https:\/\/dynamic-aqua-supply.myshopify.com\/products\/general-oceanics-mechanical-flow-meter-low-speed\"\u003eLow-speed\u003c\/a\u003e from 6 to 100 cm\/sec.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-speed impeller accurately measures water velocities from 0.10 to 7.9 m\/s, making it suitable for most freshwater and marine sampling applications.\u003c\/li\u003e\n\u003cli\u003eMechanical six-digit odometer-style counter records rotor revolutions without batteries or external power.\u003c\/li\u003e\n\u003cli\u003eBalanced free-flooding design maintains stable orientation during towing while providing unlimited operating depth.\u003c\/li\u003e\n\u003cli\u003eCorrosion-resistant construction with a polycarbonate body, nickel-plated brass nose cone, stainless-steel shaft, and molded Celcon rotor ensures long service life in freshwater and seawater.\u003c\/li\u003e\n\u003cli\u003eUniversal bridle mount allows installation on plankton nets or use as a towed current meter.\u003c\/li\u003e\n\u003cli\u003eEach instrument is supplied with an individual calibration factor for converting rotor counts into water velocity, towing distance, or filtered water volume.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 class=\"PDq2pG_selectionAnchorContainer\"\u003eSpecifications:\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\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\u003e2030R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eMechanical flowmeter with high-speed impeller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow Range\u003c\/td\u003e\n\u003ctd\u003e0.10–7.9 m\/s (10–790 cm\/s; approximately 0.2–15 knots)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStarting Threshold\u003c\/td\u003e\n\u003ctd\u003eApproximately 10 cm\/s (0.2 knots)\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\u003c\/td\u003e\n\u003ctd\u003eThree-blade high-speed Celcon® impeller\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\u003eWeight in Water\u003c\/td\u003e\n\u003ctd\u003eApproximately 113 g (4 oz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e21.3 cm (8.38 in) long; 6.98 cm (2.75 in) rotor diameter\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\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eUniversal towing bridle for single-point towing or two-point plankton net mounting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Manufacture\u003c\/td\u003e\n\u003ctd\u003eUSA \u003cspan class=\"\"\u003e\u003c\/span\u003e\n\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\u003cbr\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":7077176606763,"sku":"203001","price":745.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2593\/8322\/products\/203002.jpg?v=1513641756","url":"https:\/\/dynamicaquasupply.com\/products\/general-oceanics-2030r-mechanical-flowmeter","provider":"Dynamic  Aqua-Supply","version":"1.0","type":"link"}