Sampling Schedule

The HydroSoft dialog box at right shows the parameters available for scheduled logging on a-ßeta and c-ßeta.  The settings shown will cause the instrument to:

• Wake once per hour
• Collect data for 60 seconds at one sample per second
• Go into low-power sleep for the remainder of the hour
• Continue this cycle until memory is full or the internal batteries are exhausted.

Logging control

Logging can be started and stopped with the built-in magnetic switch, or by command through the serial port. Each time it is started, a new cast is registered in the log memory. Every cast, and indeed every sample, is tagged with the date and time as measured by the onboard real-time clock.

 

Downloading

Logged data can be downloaded, at rates up to 38400 baud, one cast at a time or en masse. HydroSoft provides a simple interface for viewing the cast directory and selecting any arbitrary set of casts.

 

Real-time Data

Data are transmitted in real time during logging.  Real-time data can also be transmitted without logging, either on the same schedule as if it were being logged, or in response to requests from an external controller.