Campbell Scientific OBS-5+ Sediment Concentration Monitor and Pressure Sensor - Manual (Page 13)

OBS-5+ System
FIGURE 4-4. Calibration curves for four different sediments and SSC
values for near-detector peaks (colored arrowheads).
5. Specifications
Features:
• Connects directly to a PC—no datalogger needed
• Operates up to six months on three C-cell batteries
• Monitors high sediment concentrations (up to 200g/L)
• Logs depth, wave height, wave period, temperature, and salinity
• Records 200,000 scans of data in the OBS-5+ flash memory
5.1 Measurement Range
Mud (D
50
=20μm): 0 to 50,000 mg/l
Sand (D
50
=250μm): 0 to 200,000 mg/l
Pressure 1 : 0 to 10, 20, 50, 100, or 200 m
Turbidity: 0.4 to 1,000 NTU
5