The OBS-3 measured both turbidity and suspended solids. Its turbidity range was 0 to 4000 NTU. A nearly linear response to particle concentrations of turbidity spanned more than three orders of magnitude. (OBS® is a registered trademark of Campbell Scientific.)
The "-L" on a product model indicates that the cable length is specified at the time of order.
|Non-Linearity of Turbidity||2% (formazin, 0 to 2000 FTU)|
|Drift||< 5% (per year)|
|Settling Time||< 1 s|
|Input Voltage||9 to 16 Vdc|
|Infrared Wavelength||875 nm|
|Maximum Depth||500 m (1640.5 ft)|
|Diameter||3 cm (1.2 in.)|
|Length||18 cm (7.1 in.)|
|Weight||181.4 g (0.4 lb)|
Note: The following shows notable compatibility information. It is not a comprehensive list of all compatible or incompatible products.