Nivetec Signet 515 Operating Instructions Manual
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5Signet 515/2536 Rotor-X Flow Sensors40x I.D. 5x I.D.25x I.D. 5x I.D. 50x I.D. 5x I.D.2 x 90° Elbow3 dimensions2 x 90° Elbow Pump/Valve15x I.D. 5x I.D. 20x I.D. 5x I.DReducer 90° ElbowLocation of Fitting• To remove the rotor, insert a small screwdriver between the rotor and the ear of the sensor.• Twist the screwdriver blade to flex the ear outward enough to remove one end of the rotor and pin.• DO NOT flex the ear any more than necessary! If it breaks, the sensor cannot be repaired.• Install the new rotor by inserting one tip of the pin into the hole,then flex the opposite ear back enough to slip rotor into place.180°90°90°0°sensobalesensorcaptabblackconduitcapnotchFigure Bblack conduitcapPROCESS PIPE(TOP VIEW) direction of flowsensor baleFigure ABlackFrequency (-)RedFrequency (+)ShieldGround515 Sensor Connections toSignet InstrumentsBlack5 VDCRedFrequency inShieldGround2536 Sensor Connections toSignet Instruments10 K+-Other BrandsDC sensor power supplied from Signet instrument.10 K Pull-up resistor may be required for non-Signet brand instrument.InputGnd.3.3 to 24VDCBlackShieldRedOtherinstrument• Lubricate O-rings with a non-petroleum based, viscous lubricant (grease)compatible with the system.• Using an alternating/twisting motion, lower the sensor into the fitting, making sure theinstallation arrows on the black cap are pointing in the direction of flow, see Figure A.• Engage one thread of the sensor cap then turn the sensor until the alignment tab is seated inthe fitting notch.Hand tighten the sensor cap.DO NOT use any tools on the sensor cap orthe cap threads and/or fitting flange threadswill be damaged, see Figure B.Technical Notes• Use 2-conductor shielded cable for cable extensions.• Cable shield must be maintained through cable splice.• Refer to your instrument manual for specific wiringdetails.Sensor Mounting PositionStandard Sensor InstallationSensor WiringRotor Replacement ProcedureTo ensure the fluid velocity profile is fullydeveloped, without distortion from piping systemcomponents, please adhere to the recommendedstraight run geometry.Horizontal pipe RunsTo minimize adverse effects of air pockets, sediment, or excessive rotor wear (Paddlewheels), avoidmounting the flow sensor at the top of the pipe (0º), bottom of pipe (180º), or the sides (90º fromvertical.)Vertical Pipe RunsMount flow sensors in any direction. To ensure pipe is flowing full, with some back pressure, it’s highlyrecommended the fluid flow is upward.Gravity and Discharge LinesIt’s recommended to install a trap to ensure pipe is full during flow conditions, and to minimizeair pockets. |
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