Campbell Scientific OBS500 Smart Turbidity Meter with ClearSensor Technology - Manual (Page 22)

OBS500 Smart Turbidity Meter with ClearSensor™ Technology
6. Specifications
Features:
• Dual backscatter and sidescatter sensors used to measure turbidity
• 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
• Compatible with Campbell Scientific CRBasic dataloggers:
CR200(X) series, CR800 series, CR1000, CR3000, and CR5000.
Also compatible with Edlog dataloggers: CR500, CR510, CR10(X),
and CR23X
Dual Probe: Backscatter and 90-degree side scatter
TU Range: 0 to 4000 TU
Active and Passive Antifouling: Shutter, wiper, biocide, copper, optional
removable sleeve
Accuracy: 0.5 TU or ±2% of reading, whichever is
greater
Temperature Accuracy: ±0.3°C, 0° to 40°C
Temperature Range: 0° to 40°C, non-freezing, ice may destroy
the sensor
Storage Temperature: 0° to 45°C
Emitter Wavelength: 850 nm
Power Requirements: 9.6 to 18 Vdc
Power Consumption
Quiescent Current: < 200 μA
Measurement/
Communication Current: < 40 mA
Shutter Motor Active Current: < 120 mA
Maximum Peak Current: 200 mA for 50 ms when shutter motor
starts
Cycle Time: Open, measure, close, < 25 s
Measurement Time: < 2 s
Outputs: SDI-12 (version 1.3) 1200 bps
RS-232 9600 bps, 8 data bits, 1 stop bit,
no parity, no flow control
Analog 0 to 5 Volts
Submersion Depth: 100 m (328 ft)
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