What is the range that the 9237 card can balance out using the bridge offset null calibration? I am writing a program that will be collecting four load cells with the 9237 card so I will be using 2.5V of excitation. Playing with my program with only one load cell connected I can use the bridge offset null to balance the bridge and it works fine with 10V excitation . When I put the excitation down to 2.5 Volts, I get an error -201398. With 2.5 Vex the offset value would be closer to zero, so I don't understand why it is having trouble trying to balance the bridge.
