There have been similar questions asked so far, but I haven't seen someone with the same problems I have, so here goes:
I'm trying to calibrate two load cells from Cooper Instruments (100 lb, LFS 260-100). They are connected to an SCC-SG24 in an SC-2345 box.
If I look at the connection in MAX, it tells me that for both channels, the Mode is "On Demand", the Input Configuration is "NRSE", and the Max/Min Input Limits are +/- 100m.
The VI is a very simple one - the DAQ Assistant and two numerical outputs (in a while loop). Each channel is set for an internal excitation source at 10 V (the Use Ex for Scaling box is checked), the scale is linear, and it's set at "Full Bridge".
When I run the Channel Calibration Wizard in the DAQ Assistant, I'm hanging a series of weights from the load cell and commiting the values for each.
Now, here's the problem - if I only use one load cell, the calibration goes fine, and everything works as expected. Using both load cells, however, it only works if I do a very minimalist calibration (values at the extreme ends of the range), but if I try to get a more accurate calibration by including more values during the calibration, I get Error 200939, saying
"The Channel Calibration Scale Pre-Scaled Values specified is not supported, because one of the numbers appears more than once in the specified array. Ensure unique numbers are specified in the array.