Laser Sensor Voltage Does Not Settle At Zero

Hello wise ladies and (mostly) gentlemen. Have a problem for you that has got me quite frustrated.
My current setup:
Wenglor Reflex Laser Sensor: http://www.wenglor.com/index.php?id=346&L=0%27&tx_wsproductlister_pi1%5BArtikelNR%5D=YR24PCT2&tx_wsp...
SCC-A10
SC-2345
DAQ 6036E
Labview (can't remember what version).
The sensor is connected to a 24V power supply, with the output of the sensor to the positive terminal of the SCC-A10, and the neutral of the power supply to negative terminal. Theoretically, (I measured these voltages with a multimeter) it jumps from around 23.2V to 0V, depending on if it is in NO (Normally Open) or NC mode. When everything above is hooked up, and my VI running, I get the output of the sensor going crazy when it is supposed to be sitting at 0V. The 23.2V side of things is fine however.
The left side of the graph is for output of 23.2V, right side is the theoretical zero. But instead it seems to be going crazy between 2.32V and -1.5V (SCC-A10 is a voltage divider by 10). WHY??????
Block diagram of VI:
Input mode is referenced single ended, sensor range is -10 to 10 V. Connected on ACH6 or 14.
HELP PLEASE!!

So finally managed to get the resistors and get everything setup. When I attached the positive terminal through the resistor to ground, I didn't actually get any change. Still looked like the above graph. I of course said, well lets try the other way. This worked better with the 10k resistor now going from the neutral (negative) terminal to ground, but the signal (when it was supposed to be zero) would float around 0.5 by +- 0.3. Would connecting both to ground fix this? The sensor is NC, so all I really need to see is the delta, but it would be nice if the open case sat at a constant voltage.
Turns out my sensor is not sensitive enough for what I want it to do, so waiting on getting another one sent to me...will have the same setup once it gets here however.
Thanks for all the help so far, has gotten me farther than the hammer approach would have.

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Laser Sensor Voltage Does Not Settle At Zero

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