Check out the sample posted on our github for the DMM7510.
The code for control of digitizer will be essentially same for DMM7510 and DMM6500.
Sample Code - look at DigitizeV samples
Just the spec of the A/D on the DMM7510 is better:
18-bit vs. 16-bit
hardware comparator-based triggers vs. firmware detect
able to AC couple to the signal