Products:
OBS-3
OBS-3A
OBS-5






OBS-3



Product Sheet (html)
Product Sheet (pdf)



Read more about the OSB-3 technology.
Optical Methods for turbidity measurements.
Choose the right unit for the job.

The OBS-3 sensor measures suspended solids and turbidity with a patented (U.S. Patent No. 4,841,157) backscatter method. It features: nearly linear response to particle concentrations spanning more than three orders of magnitude, an with infrared measurement system; an optical filter with synchronous detection to reject ambient light; a small package; and low power consumption.

River and stream gaging
Add-on sensor for CTDs, data loggers, & current meters
Wastewater and effluent measurements
Monitor dredging & mining operations
Permit compliance
Control instrumentation for settling ponds
Sediment transport research
Laboratory measurements




OBS-3A



Product Sheet(html)
Product Sheet (pdf)
Full Manual(pdf) 3.8M
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Read more about the OSB-3A technology.
Optical Methods for turbidity measurements.
Choose the right unit for the job.

The OBS-3A combines our field-proven optical backscatter sensor for measuring suspended solids and turbidity (U.S. Patent No. 4,841,157) with pressure, temperature, and conductivity sensors in one recording instrument. An OBS-3A can log one scan of data per hour for nine months on lithium batteries. Easy-to- use, software that runs in Windows?is provided with the instrument.
Record turbidity at remote sites
River and stream gauging
Permit compliance
Wastewater and effluent measurements
Monitor dredging & mining operations
Settling-pond control systems
Sediment transport research




OBS-5



Product Sheet (html)
Product Sheet (pdf)




Read more about the OSB-5 technology.
Optical Methods for turbidity measurements.
Choose the right unit for the job.

The OBS-5 system monitors high particle concentrations using an infrared laser and two detectors controlled by a microprocessor (U.S. Patent 5,796,481). It is uniquely suited for monitoring dredging operations and flood events when very high sediment loads are expected. The probe transmits sediment concentration, turbidity, depth, temperature, and salinity to a PC where data are displayed and recorded in Windows?
Monitor dredging & site-remediation operations
Survey contaminated sediment
Determine dredge-head and bucket-wheel efficiencies
Evaluate containment systems