Conductivity (C)

RBR CT | uv and CTD | uv instruments use integrated inductive conductivity sensors which measure the ability of seawater to conduct electric current.

Parameter Value

Range

0 to 85mS/cm

Initial accuracy

±0.003mS/cm

Resolution

<0.0001mS/cm

Typical stability1

±0.010mS/cm/year

Max depth rating

200m

1 For a clean cell with no biofouling.

uv 1a
Fig. 1.    CTD | uv cell, transparent view

The CT cell is rugged and durable. It is not affected by surface contaminants or freezing conditions, and can be frozen into ice.

While 80% of its volumetric measurements happens inside the cell, they also extend up to 15cm away and thus may be affected by conductive and non-conductive objects within this distance. RBR calibrates conductivity sensors to account for static objects, such as cages, guards, and other sensors.

To maintain optimal accuracy, deploy your instrument at least 15cm away from other objects.

Conductivity measurements are temperature compensated.