El ClariVue™20 es un sensor para medida de la turbidez por dispersión lateral 90º, sumergible, que cumple con la norma ISO 7027, con una robusta carcasa de titanio, lo que lo convierte en la opción ideal para entornos altamente corrosivos. La señal de salida es digital SDI-12, compatible con todos los dataloggers Campbell Scientific de última generación. La medida de la turbidez por dispersión lateral se puede utilizar como un sustituto de la concentración de sedimentos en suspensión en los ecosistemas acuáticos.
Leer másEl ClariVue 20 está diseñado para funcionar en agua natural y salida. La cara del sensor está hecha de titanio para frenar el crecimiento biológico sobre las ventanas ópticas; sin embargo, el sensor requiere un mantenimiento regular para mantener limpia la ventana óptica en situaciones con alta bioincrustación.
Cuidado: el ClariVue 20 se puede dañar si se introduce en líquido congelado.
Standards | Meets ISO 7027-1:2016 (side scatter) standard for turbidity measurements |
Signal Type | SDI-12 v1.4, Modbus through RS-485, or analog |
Operating Temperature Range | -2° to +40°C (28° to 104°F) |
Analog Signal Output | 0 to 1 Vdc |
Power Requirements | 9.6 to 18 Vdc |
Measurement Range | 0 to 4000 FNU |
SDI-12 Measurement Response Time |
12 to 28 s depending on the SDI-12 command (Refer to the manual for more information.) |
Resolution | 0.2 FNU |
Particle Size | 0.1 to 0.5 μm |
Accuracy | ±2% or 0.5 FNU, whichever is greater |
Housing Material | Titanium |
Head Material | Titanium |
Optics | Sapphire lens |
Connector Description | MCBH-5-FS, titanium, six gold-plated pins, wet-mateable |
Cable Type | Six-conductor, polyurethane jacket with water block |
Optical Assembly | Sealed with double O-rings |
Internal Temperature Measurement | ±0.2°C (±0.4°F) accuracy |
Maximum Depth | 500 m (1,640 ft) |
Sensor Diameter | 3.0 cm (1.2 in.) |
Sensor Length | 16.6 cm (6.5 in.) |
Sensor Weight | 200 g (0.44 lb) |
Power Consumption |
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Initial Measurement | 32 mA (30 s) |
Idle | 0.75 mA |
Measurement | 32 mA |
Three programs are included for the ClariVue 20 submersible turbidity sensor. One program uses the M1! SDI-12 command to make measurements and calculate turbidity statistics (median, mean, standard deviation, minimum, maximum) and mean temperature. A second program uses an analog differential voltage measurement to read the ClariVue 20. Because the analog output requires the sensor to continuously measure turbidity and power the DAC, the sensor will not go to a low power state while in this mode. Subsequently, the current draw is significantly higher with analog out than with the digital protocols. A third program uses Modbus to communicate with the sensor. When using Modbus, the ClariVue 20 can go into low power mode between measurements, which may require sending a command to wake the sensor before making another measurement. These programs were written for a CR1000Xe, but other dataloggers are programmed similarly. Voltage ranges, channel numbers, or other parameters may need to be changed to reflect the specifications of the datalogger.