Este producto ya no está disponible y ha sido reemplazado por: OBS501. Algunos accesorios, recambios o servicios pueden todavía estar disponibles.
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Resumen
Please note that for most applications we recommend the newer OBS501 Sensor
The OBS500 is a submersible turbidity probe with active antifouling capabilities for better measurements in biologically active water with both high and low turbidity. It outputs an SDI-12, digitally processed signal that many of our dataloggers can measure. ClearSensor® and OBS® are registered trademarks of Campbell Scientific.
Leer másVentajas y características
- Sensores con doble backscatter y sidescatter para medir la turbidez
- Método antifouling ClearSensorTM que proporciona mejores medidas en aguas biológicamente activas
- Mecanismo de limpieza tipo obturador que mantiene las lentes limpias
- Cámara "biocide" rellenable que previene el "fouling"
- Funda de plástico desechable que facilita la limpieza
- Optional copper sleeve for additional protection (especially for sea water) or disposable plastic sleeve facilitates easy cleanup
Imágenes
Descripción detallada
Design features of the OBS500 include the combination of a backscatter sensor (better at measuring high turbidity) with a second sidescatter sensor (better at measuring lower turbidity). It has a shutter that is opened only during measurements, which reduces the time that algae or other organisms can cling to its optics.
To prevent biofouling and ensure better measurements, the OBS500 incorporates the ClearSensor® Method (Patent No. 8,429,952). This method uses a shutter/wiper mechanism to protect and clean the optics. With the ClearSensor® method, a chamber is also filled with a biocide that continuously leaches out over the optics while the probe shutter is in the closed position.
Campbell Scientific offers a disposable, plastic sleeve that can make cleanup a snap, as well as a copper sleeve that can provide additional protection, especially in sea water.
For most applications we recommend the newer OBS501 Sensor
(OBS® is a registered trademark of Campbell Scientific.)
Especificaciones
| Dual Probe | 90° sidescatter and backscatter |
| Range | 0 to 4000 NTU |
| Active and Passive Antifouling | Shutter, wiper, biocide, copper, optional removable sleeve |
| Concentration Accuracy | ±2% of reading or 0.5 NTU (whichever is greater) |
| Operating Temperature Range | 0° to 40°C |
| Temperature Accuracy | ±0.3°C |
| Emitter Wavelength | 850 nm |
| Power Requirements | 9.6 to 18 Vdc |
| Measurement Time | < 10 s |
| Maximum Submersion Depth | 100 m (330 ft) |
| Diameter | 4.8 cm (1.88 in.) |
| Maximum Cable Length | > 500 m (1640 ft) |
| Length | 27 cm (10.63 in.) |
| Weight | 0.59 kg (1.3 lb) |
Power Consumption |
|
| Quiescent | < 200 µA |
| Measurement | < 40 mA |
| Communication | < 40 mA |
| Maximum Peak Current | 200 mA for 50 ms when shutter motor starts |
| Active Shutter Motor | < 120 mA |
Outputs |
|
| SDI-12 | Version 1.3, 1200 bps |
| RS-232 | 9600 bps |
| Analog | 0 to 5 Vdc |