Forum Technical Discussions      Sonatest function Posted by: Adnan , E-mail: Address, on September 29, 2008 at 11:47 : Hi guys.. i got sonatest sitescan 130 with no manual avaiable.. just wonder if any guys out there know how to change the ref dB at box dB's .. inside the box, got 'ref dB', then got 'step dB' and the 'actual dB/current dB'... please advise how to change ref dB or set it back to 0 ... currently set at ref 20 .. and the scanning db like 20 is out of the calibration ie... 1.5 side drielled hole with 80 FSH detect the at normal ut set around 40-50 db but this unit like 70-80 dB . so in my point is this ref dB need to turn to 0 // please advise.. thank you in advance with your helps guys... Follow Ups: Post a Followup: Name: E-Mail: Subject: Comments: ----------- Start Original Message ----------- : Hi guys.. i got sonatest sitescan 130 with no manual avaiable.. just wonder if any guys out there know how to change the ref dB at box dB's .. inside the box, got 'ref dB', then got 'step dB' and the 'actual dB/current dB'... please advise how to change ref dB or set it back to 0 ... currently set at ref 20 .. and the scanning db like 20 is out of the calibration ie... 1.5 side drielled hole with 80 FSH detect the at normal ut set around 40-50 db but this unit like 70-80 dB . so in my point is this ref dB need to turn to 0 // please advise.. thank you in advance with your helps guys... ------------ End Original Message ------------ Optional Link URL: Example: "http://www....html". Alternative write "http://www.ndt.net/wshop/attach/filename.htm" if you transfered a filename.htm via FTP Page Title: is important! Optional Image URL: http://www....gif Attention! Please click the button only once. This may take a moment to process Forum Technical Discussions Help