Conductivity, temperature, and pressure

The RBRlegato³ C.T.D integrates conductivity, temperature, and pressure sensors in one uniquely designed body, optimised for flow dynamics.

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Conductivity sensor

Parameter Value

Range

0 to 85mS/cm

Initial accuracy

±0.003mS/cm

Resolution

<0.001mS/cm

Typical stability

±0.010mS/cm per year

Accuracy of conductivity measurements is affected by objects within 15cm of the sensor, especially if they are conductive. Metal deployment frames are a good example. This proximity effect decreases with distance. Calibration procedure uses the predetermined k-factor to take into account static elements, such as other sensors or glider body.

Temperature sensor

Parameter Value

Range

-5°C to 42°C

Initial accuracy

±0.002°C (-5 to +35°C)
±0.004°C (+35 to +42°C)

Resolution

0.00005°C

Typical stability

±0.002°C/year

Time constant

<1s (standard)

<0.1s ( | fast16)

Pressure sensor

Parameter Value

Range

1000dbar

Initial accuracy

±0.05% full scale

Resolution

<0.001% full scale

Typical stability

±0.05% full scale

Time constant

<0.01s