Constantly rising voltage reading

[MDaly]

The readings that labview displays for the voltage of four water level probes slowly but constantly rises when i run the VI.

I have tested the probe output with a multimeter, and it is outputting a steady voltage, so the problem is on the computer side of the DAQ board.

My VI simply consists of a DAQ assistant, a write to file function, a wire splitter, and four waveform charts, one for each of the four input channels.

Can you over me any advice?

cheers

[chrisger]

hi there,

- have the (hardware) wires been connected to the DAQ-board while you measured the voltage with the multimeter?

- be sure to select the correct input terminal configuration (RSE, NRSE, differential, pseudodifferential). you can select the configuration with the "DAQmx Create Channel.vi"

- try to read the DAQ board with the testpanel in MAX to test different settings

if nothing helps, send us some code.