Solution:

Calibration Steps : 1. D/A channel 0, DA0_OUT, with internal reference -5 V, and D/A channel 1, DA1_OUT, with reference -10 V. 2. Run ADCAL.EXE program to finish the self-A/D calibration procedure. 3. Set AI0 as differential, bipolar, range +/-5V and AI2 as differential, unipolar, range 0 to 10 V. 4. Connect DA0_OUT with codes equal to 4095 LSB (4.9959 V) to AI 0. Notice that the polarity of AI0 should be connected with reverse polarity (i.e. D/A + to A/D -, D/A - to A/D +). 5. Adjust VR2 until the output codes from the card's AI0 flicker between 0 and 1. 6. Connect DA0_OUT with codes equal to 4095 LSB (4.9959 V) to AI0. 7. Adjust VR3 until the output codes from the card's AI0 flickers between 4094 and 4095. 8. Repeat steps 2 through 5, adjusting VR2 and VR3. 9. Connect DA1_OUT with codes equal to 1 LSB (2.44 mV) to AI2. 10. Adjust VR1 until the output codes from the card's AI1 flicker between 0 and 1. 11. Finish ADCAL.EXE.