®Technical SpecificationsFM676®INSTRUMENTS, LLC.Product Data SheetPDS-6762026-07-31BlueWaterObstructionless Electromagnetic FlowmeterDescriptionThe Model 676 BlueWater electromagnetic flowmeter is designed to measure the flow of water (and other liquids) with full pipes conditions. This model of flow meter is ideally suited for irrigation as it is battery operated, rugged, and easy to install and configure.The BlueWater stores all calibration and flow information in a flash memory eliminating the need for a backup battery to store information and eliminating the need to reprogram the meter if the module is replaced or changed.Principle of OperationSparling magnetic flowmeters are based on Faraday's Law which states that the voltage induced in a conductor moving through a magnetic field is proportional to the velocity of that conductor. Accuracy is minimally affected by changes in temperature, pressure, viscosity, or conductivity.Certified AccuracyEach FM676 is 'wet-flow' calibrated in Sparling's Primary Flow Lab traceable to the National Institute of Standards and Technology (NIST).ApplicationsThis model of flow meter is ideally suited for irrigation as it is battery operated, rugged, and easy to install and configure.Features•Easily field programmable without a factory service call•Long life battery, up to five years•Battery replacement requires no tools•8V - 36V DC. When DC connected, battery is backup.•Transmitter easily replaced in the field without requiring removal of the flow tube.•Stores total and calibration information in a non-volatile flash memory - no backup battery required•Standard Pulse Output•Forward, reverse and net totalization•Rotatable Modular Display•Empty pipe detection•Standard 1% Accuracy•Optional datalogger using standard USB cable•Sizes available from 3" - 14"
®INSTRUMENTS, LLC.InstallationThe meter can be installed in any orientation from vertical to horizontal. A vertical installation, however, with liquid flowing up, is ideal as it assures a full pipe.A minimum of three diameters of straight pipe length are required from the center of the meter to normal obstructions to obtain specified accuracies.More straight approach should be provided after valves or multiple elbows. Provide at least 10 diameters after expanders or laterals which are of smaller diameter than the line size.GroundingIf the meter is installed in metal pipe, grounding rings are not required:When installing in plastic or coated pipes, grounding rings are required:BatteryBlueWater has a long-life battery, up to five years. Changing the battery is a straightforward operation, requiring no tools.Standard SpecificationsAccuracy:±1% of flow (1fps - 33fps)Power Requirements:7.2V 19Ah Battery and/or 8V - 36V DC. When DC connected, battery is backup.End Connections:ANSI B16.5 Cl 150Process Temp:-40°F - 180°F (-40°C - 82°C)Storage Temp Limits:-40°F - 140°F (-40°C - 60°C)Max. Working Pressure:150 psiAmbient Temp:-40°F - 140°F (-40°C - 60°C)Wire Size:Power: 14 AWG - 16 AWG, Pulse Output: 18 AWGPower:3 mW at lowest sample frequencyMinimum Conductivity:5 µ siemensVelocity Range:0fps - 33fpsConstruction:Metering Tube: 304 SS with welded ANSI compliant carbon steel flangesLiner: PolyurethaneElectrodes: 316 SSTransmitter Enclosure: NEMA 4XElectrical Rating: General PurposeOutput Signal:Scaled Pulse 24VDC with selectable 12.5 / 25 / 50 / 100 ms on time, max.freq. 60HzHow to order an FM676Table 1: BaseModelNumberFM676 - BlueWaterTable 2: Size03 - 3"04 - 4"06 - 6"08 - 8"10 - 10"12 - 12"14 - 14"Table 3: Transmitter0 - Integral NEMA 4X encl.Table 4: PowerSupply1 - Battery and DC PowerTable 5: Outputs0 - Pulse OutputTable 6: Datalogger0 - No Datalogger1 - DataloggerModelSizeTrans.PowerOutputsDataFM676030100
®INSTRUMENTS, LLC.Flow Rates & DimensionsMeter Size(in)Weight(lbs)Dimensions (in)Flow Rates (GPM)ABC1 fps3 fps33 fps3.0048.06.007.5013.020.160.46644.0055.010.29.0014.435.810711806.0075.012.311.017.088.126429108.0010514.213.519.4157470517010.015518.216.022.6245734807012.023519.719.025.035210601160014.036521.421.026.7430129014200