Product Information - OBS500

Turbidity Probe with Antifouling Features

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Brochure, Version Date: September 2011  Brochure
Manual, Version Date: April 2012  Manual
Copper Sleeve Kit Installation Sheet, Version Date: August 2011  Copper Sleeve Kit Installation Sheet

General Description

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.

Features & Benefits

  • Dual backscatter and sidescatter sensors used to measure turbidity
  • CleanSensorTM antifouling method for better measurements in biologically active water
  • Shutter/wiper mechanism keeps lenses clean
  • Refillable biocide chamber prevents fouling
  • Optional copper sleeve (especially for sea water) or disposable plastic sleeve facilitates easy cleanup

Technical Description

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 CleanSensorTM Method (patent pending). This method uses a shutter/wiper mechanism to protect and clean the optics. With the CleanSensor method, a chamber is also filled with a biocide that continuously leaches out over the optics while the probe is in the closed position. Campbell Scientific will offer an optional, disposable, plastic sleeve that can make clean up a snap, as well as an optional copper sleeve that can provide additional protection, especially in sea water.


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