General overview

Channels

The RBR L3 platform based instruments, allow to measure a wide range of physical properties of the water. Temperature, pressure, conductivity, turbidity, dissolved oxygen, chlorophyll: this list is not exhaustive and the number of sensors supported is increasing regularly.
The RBR instruments have different channels available, one for each physical property measured (for example temperature) but also for physical properties derived from the measured ones (for example salinity).
Channels can be referred when sending commands via their indices (the first channel is at index 1) or via their label (for example temperature_00). 

Acquiring samples

There are basically two fundamentals ways to acquire samples. They can be acquired by fetching (polling) or according to a defined schedule.
Fetching measurement is performed via the command fetch.
Scheduled samples are configured with different commands (see deployment and sampling). They are always logged on board. They can be streamed directly out of the logger (see streamusb and streamserial). The underlying schedule can be as simple as a fixed sampling rate (see continuous mode in sampling) or more complex schemes (for example ddsampling or regimes). They can also obey some external control (thresholding, twistactivation).

One main feature of the RBR instruments is that fetching and scheduled samples can occur at the same time, they are not exclusive.

The following quickstarts give examples of different sequence of commands on how to use the different ways to acquire samples.