Campbell Scientific OBS-3A Turbidity and Temperature Monitoring System - Manual (Page 26)

OBS-3A Turbidity and Temperature Monitoring System
Change to RS-232
To switch from RS-485 communication to RS-232 communication, press the
RS-232 button and then remove the RS-485 converter.
Once the button is pressed, you will no longer be able to
communicate via RS-485. However, if you accidently push this
button, the OBS-3A can be reset by removing and reinserting the
batteries. NOTE
Coefficients
The Coefficients box can be used to retrieve and save the coefficients stored in
the OBS-3A that are used to calculate the output values for each sensor. The
saved files can be used to load the coefficients into the OBS-3A at a time later,
if necessary.
Press the Retrieve and Save Coefficients to File button to retrieve the
coefficients from the OBS-3A and save them to a file on your computer.
Select the desired sensor from the resulting dialog box and then press the Save
Coefficents to File button. It is a good idea to save the coefficients for each
sensor to a file.
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