This is govindkumar form chennai, india. I have a doubt in getting data from siemens hydroranger. I have to use this as differential Ultrasonic. My doubt is when i'm using this as ultrasonic, we use 2 transiducer in the hydroranger. Whether we need to take reading seperately from the 2 transiducer and then get difference or the standard reading comes from the instrument is the actual difference. If so let me know the procedures.Please clear me this issue.

Thanks

Govind