PCI 6110 Clipping at 10 volts

[j2park]

Hello,

I am using a PCI 6110 DAQ Card, a BNC 2110 Connector Board and LabVIEW 8.0 to collect data from a load cell.  My problem is that I can't get any readings over 10 volts.  According to the spec sheets for the PCI 6110 DAQ Card and BNC 2110 Connector Board, the range of input voltages should be +-42V.  However, when more than 10 volts worth of force is applied to the load cell, the signal clips and stays at 10 volts until it drops below that value.  Is there something wrong with my DAQ card or BNC board?

Thank you,

Joel

[AdnanZ]

This might seem silly but did you specify the minimum and maximum value when creating the channel (DAQmx Create Channel)?

[j2park]

Hi Adnan,

Thanks for the reply.  I am using Traditional DAQ and I didn't create virtual channels in MAX. 

However, when I tried to create virtual channels in MAX, they aren't selectable in the Analog Input Channels control and they disappear every time I exit out of MAX.

-Joel

[ColeTrain]

Hello Joel,

You can also set the limits using the AI config VI.  These terminals are set as optional, so they are easy to overlook.  The terminal you need is on the top as shown below.

Set these inputs to the range you expect and see if that allows you to read in the full scale.

[j2park]

Hi Cole,

This is embarrassing but I actually just found out that the signal conditioners connected to the load cell have a voltage range of +-10 V.

Thanks for the advice though; I'm sure it will prove useful in the future.

-Joel