How to connect single ended connections?

I am new in this field. I am trying to accquire single ended data on
single channel using the following configuration(see fig A and fig B in the
attached figure) . It works all right when i take input from signal
generator. please notice specially the power/signal connections. I have
chosen NRSE settings.
For my application I have to to test the same settings when the input
signal is taken from 4* 1.5 V pencil cells ( see figure B). In this setting
however it does not work at all. I have again chosen NRSE settings. What is
the problem? What is NRSE and RSE? What is the difference?What should I
choose in this case?
Can anybody help?
[Attachment diagram.doc, see below]
[See first answer for additio
nal information]

[Attachment(s) for question]
Attachments:
diagram.doc ‏73 KB

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