Hi,
This might be a very dumb question but I am trying to understand how the sensors are differentiated by the datalogger. The way I understood it is that different sensors gives a different reading in voltages based on which it is identified as a temperature sensor, ph sensor etc. I am not sure if I am thinking in the right track.
Suggestion?
The datalogger has no idea if the voltage being read on an analog channel is coming from a temperature sensor, a wind sensor, or some random voltage generator. It is up to the user to enter a multiplier and offset specific to the sensor to convert the voltage into meaningful engineering units.
The easiest way to program a datalogger is to use SCWin, which is offered as a no-charge download from our web site. It might help to answer your questions if you generated a program or two with SCWin and then reviewed the resulting *.CR1 file.
Regards,
Dana W.
In the datalogger program you specify which physical channel the sensor is connected to. The datalogger reads the signal on that channel then applies the programmed multiplier and offset to generate engineering units.
As Dana said, SCWin can get you going. It assigns the physical channels (connect sensors according to the wiring diagram provided) and writes the program using the appropriate multipliers and offset for the units you specified.
Your hardware (wiring) has to be coordinated with your software (datalogger program).
Hope that helps.
Janet