Single-ended signal with SCXI-1314?

[CSN]

In MAX I only see the option to read differential signals with the SCXI-1314 attached to a SCXI-1520. Is it possible to read a single ended nonreferenced signal with these components? If so how would you set it up?

Thanks

[Mark_E]

Hi CSN,

For future reference, this type of question would be more appropriate to post in the Signal Conditioning forums.

 The SCXI-1520 is a strain gauge module, and as such, was designed solely for differential (bridge) measurements. Chances are, there's a more appropriate DAQ device for your application. What type of signals are you trying to measure?

[CSN]

Thanks for replying Mark E.

The sensor is full bridge with an output of 2 - 6 volts. The sensor has three wires - power, output high(+), and output low(-). I had thought this was a differential signal but the sensor manufacturer tells me the output low(-) should be wired to the DAQ ground. This leaves me thinking it is a single ended signal not a differential. I was hoping to wire the high(+) to S+ and the low(-) to the ground in the 1314 and be OK. Would this work? Advantage and disadvantages?

If not I have a USB-6229 but it is not currently tied into this system and I was hoping to avoid additional programming at this point. 

[Mark_E]

CSN,

Do you have the data sheet for the manufacturer? I have never heard of a full-bridge sensor that only has three outputs. If the output low is also the ground, then you only have one leg (resistor) from power to ground, so I can't understand how that could be considered full-bridge. To answer the question of whether or not it would work, I have only to say that I can't see how it would work at all as a full bridge sensor.