Ultrasonic Level and Flow Measurement Sensor (Бразилия - Тендер #37757961)

Ultrasonic Sensor
" Fluid: Domestic sewage or raw water;
" Nominal Measurement Range for the height of the water depth: 0 to 6m at least;
" Minimum operating frequency: 30kHz;
" Operating temperature: -25 to 70�C;
" Application: Parshall gutters and spillways with throat widths from 1 to 60;
" Degree of Protection IP 68; " Body material: PVC, PP or equivalent;
" Connection to the process: Male NPT thread DN 1 or 2;
" Resolution: 10mm;
" Accuracy: /- 0.25% of full scale;
" Emission angle: maximum 10�;
" Temperature Compensation: automatic;
" Electrical supply: 10 to 30 Vdc;
" Output signal: 4 to 20mA with two wires;
" Communication: HART for programming and reading parameters on the sensor itself. Converter (must accompany the transducer
Transmitter (must accompany the sensor)
" Degree of Protection IP 67;
" Microprocessed;
" Gutter Equation Setup: There shall be available multiple types/sizes of Parshall Gutters stored in non-volatile memory;
" Non-standard gutter configuration: It must be possible to configure any type of gutter;
" Options Configuration / programming of the converter by inserting the gutter equation or flow linearization table as a function of the height of the water depth (minimum 10 (ten) pairs of points); " Programmable to install in rectangular and triangular spillways; " Visor (display): In Portuguese and/or English;
" Liquid Crystal LCD;
" 6 digits for totalization indication (minimum)
" Alternating or simultaneous indication of flow and totalization, containing:
" Unit;
" Measured value;
" Totalization: m3
" Flow m3/h and l/s
" 24Vdc power supply;
" Remote mount
" Programmable Low Flow Cutoff;
" Damping function (time constant) programmable;
" Device that makes it impossible for unauthorized persons to access programming
" Programming via remote keyboard or built into the converter;
" Any device necessary to carry out its programming must accompany the equipment
" If accompanied by a remote control, the power battery must be easily accessible for replacement when necessary.
" Totalization with reset device;
" Galvanic isolation of all inputs and outputs, in addition to the communication ports.
" Departures:
" Galvanically isolated 4 / 20 mA analog for a 500� load (minimum). Active powered by the converter.
" Digital  Pulses with programmable rates (in liters/pulse)
" ModBus RTU RS 485 or RS 232

Country: Brazil

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