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Greyline Stingray 2.0 Portable Level-Velocity Logger

Greyline

Product Code: Stingray 2.0
Brand: Greyline



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Description for Greyline Stingray 2.0 Portable Level-Velocity Logger

Measures water level and velocity in partially filled pipes and open channelsNo flume or weir requiredExtreme low power consumptionUses standard alkaline D-cell batteries130,000 point data loggerUSB outputPowerful Windows softwareLCD bar graph displayCompact and PortableStingray 2.0 is a compact, battery-powered logger with an ultrasonic sensor. It data logs level, velocity and water temperature readings for flow monitoring through open channels, partially full sewer pipes and surcharged pipes. Use it for flow surveys, I & I studies, stormwater, irrigation water and sewage.Hydrodynamic Ultrasonic SensorStingray 2.0 uses a submerged ultrasonic sensor to continuously measure both velocity and level in the channel. The sensor is a completely sealed ultrasonic unit with no orifices or ports. It is hydrodynamically shaped and designed to shed deposits and stringers for reliable operation in sewage, stormwater and stream flow applications. The QZ02L sensor mounts inside the pipe or at the bottom of an open channel. No special compounds, tools or hardware are required. A stainless steel mounting bracket is included.Powered by Standard Alkaline BatteriesWith 4 standard Alkaline D-cell batteries the Stingray 2.0 will operate up to 4 years! These inexpensive Alkaline batteries are available in stores everywhere and with an extremely low self discharge rate they will reliably power the energy-efficient Stingray 2.0 for the duration of your flow study.Stingray 2.0 stores 130,000 data points including level, velocity and water temperature. Between readings it powers down to conserve energy.Stingray 2.0 Confidence DisplayYou can check operation with the built-in LCD bar graph display. It scrolls through level, velocity and temperature readings, plus remaining battery and logger storage capacity. The display turns off automatically after 60 seconds to conserve battery power.Contact Greyline Instruments for specific recommendations in your application.PORTABLE LEVEL-VELOCITY LOGGER SPECIFICATIONSSCOPE: This specification covers a portable Level-Velocity Logger as manufactured by Greyline Instruments, Largo, Florida / Long Sault, Ontario. The instrument shall provide for measurement and data logging of level, velocity and temperature readings from flow in open channels and partially filled or surcharged pipes.A. GENERALLevel-Velocity Logger to consist of a submersible ultrasonic sensor, connecting cable, and a remote enclosure with electronics and display. System shall have no moving parts.Level measurement accuracy shall be ±0.25% of Level. Velocity measurement accuracy shall be ±2% of reading B. TRANSDUCER (SENSORS)Ultrasonic sensor shall be rated IP68 for continuous submersion in liquids.Using the ultrasonic Doppler principle, the sensor shall measure fluid velocities from 0.1 to 12.5 ft/sec (0.03 to 3.8 m/sec).Using ultrasonic echo-ranging principle, the submerged sensor shall measure liquid level from 1" to 15 ft. (25.4 mm to 4.57 m) above the bottom of the pipe or channel. Minimum detectable level shall not be greater than 1" (25.4 mm). Level sensing circuitry shall include a temperature sensor for automatic temperature compensation.Sensor shall be constructed of 316 stainless steel and epoxy resin.Sensor operating temperature shall be from 5°F to 175°F (-15°C to 80°C). C. SENSOR CONNECTING CABLEProvide minimum length 25 ft (7.6 m) tri-coaxial cable with potted bond to the Sensor head. Sensor cable shall be waterproof and electrically shielded. Exposed material shall be polyurethane only.Sensor shall include a watertight plug for connection to the instrument electronics.D. LOGGER ELECTRONICSNo calibration shall be required. The Level-Velocity Logger shall measure liquid level from the bottom of the pipe or channel, and flow velocity.Logger electronics operating temperature shall be from –5° to 140°F (–20° to 60°C).Shall have USB output to transfer log files to a Windows™ computer or laptop.Provide an LCD bar graph display to indicate level, velocity and temperature readings, plus remaining battery and logger storage capacity.Shall be housed in a watertight IP67 enclosure with hinged, latching cover and watertight sensor cable entry.Logger capacity shall be 130,000 data points. Each data point includes level, velocity and temperature reading.Logger sample rate shall be user-selectable from 10 or 30 seconds, 1, 2, 5, 10, 30 or 60 minutes.Shall be powered by 4 D-cell Alkaline batteries. Battery life shall be matched to Logger storage capacity: 15 days at 10 second sample rate up to 4 years at 60 minute sample rate.E. PC SOFTWAREShall include Windows™ software to retrieve, display, save and export log files from the Level-Velocity Logger. Shall support Windows versions including XP, Vista, 7, 8, and 10.Shall convert level-velocity readings to flow for channel shapes including round pipes, rectangular, trapezoid and egg-shaped channels. Shall convert level readings to flow for flumes and weirs.Shall provide 'real-time' communication with the level-velocity logger to display readings with a refresh rate of 10 seconds or less.Shall permit the operator to set logging rate of the level-velocity instrument from 10 or 30 seconds, 1, 2, 5, 10, 15, 30 or 60 minutes.Shall display battery life remaining and logger capacity remaining.Shall display, save, output to a printer and export level-velocity log files in graph and tabular format. Export log files shall be delimited for import to spreadsheet or database programs.Shall permit conversion of linear and volume units.F. OPTIONAL FEATURES FOR INSERTION AS REQUIREDShall include 50 ft / 15 m length sensor cable extension with watertight connector plugs to permit sensor installation total distance of 75 ft / 23 m from the electronics enclosure. Cable extension shall be shielded, submersible with a durable polyurethane coating.G. MANUFACTURERLevel-Velocity Logger shall be Stingray 2.0 model by Greyline Instruments and warranted against defects in materials and workmanship for one year.

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