Campbell-scientific OBS500 Smart Turbidity Meter with ClearSensor Tech Manuel d'utilisateur télécharger pdf (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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Campbell-scientific OBS500 Smart Turbidity Meter with ClearSensor Tech Manuel d'utilisateur Page 22