The OBS-5+ system, part of our OBS® line of products, monitors high sediment concentrations using an
infrared laser and a proprietary dual photo-detection system (U.S.
Patent No. 5,796,481). The probe transmits sediment concentration and
depth to a PC via an RS-232 or RS-485 link. It can also record data
internally. The OBS-5+ has a Windows GUI that enables the user to
generate and store sediment calibration tables, program data logging
and sampling schemes, and graphically display data.
Using the Windows GUI, an operator can calibrate the OBS-5+ with
sediments, change electronics gain to optimize resolution, and create
as many as 15 unique sediment lookup tables,and store those tables in
FLASH memory for future use. Users can complete the entire calibration
process without spreadsheet calculations and curve fitting.
Features
- Measures sediment concentrations up to 500g/l (specific gravity 1.30)
- Logs instrument depth
- Records 200,000 scans of data in flash memory
- Runs as long as 6 mo on three alkaline C-cell batteries
- RS-232 and RS-485 data links
Specifications
- Compact 380-mm (15-in.) by 60-mm (2.4-in.) package
