OBS500

Name: OBS500
Brand: Campbell Scientific
SKU: 27784
Availability: Discontinued

Smart Turbidity Meter with Antifouling Features

OBS500

End of lifeConfigurable

Smart Turbidity Meter with Antifouling Features

Pricing

Model:: OBS500
Item Number:: 27784
Warranty:: 1 year
Lead time:: 14 days

Overview

FG OBS500 Smart Turbidity Meter w/ClearSensor(R) Technology

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 data loggers can measure. ClearSensor^®and OBS^® are registered trademarks of Campbell Scientific.

Key Advantages

Accurate, Rugged
ClearSensor antifouling features, dual backscatter sensors

Technical Description

Design features of the OBS500 include the combination of a backscatter sensor (better at measuring higher 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 (U.S. 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.

(OBS^® is a registered trademark of Campbell Scientific.)

Benefits

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

Specifications

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)