Comprehensive Manual36© 2018 Nortek AS2.1.10 Data handlingDataThe Vector creates binary files (*.vec), which can be converted to ASCII format files by using theData Conversion tool within the Vector software. The Vector records the following:The *.hdr file is a self-documented table. Please note that this file contains the detailed dataformat of all the other ASCII files.The *.dat files contains velocity and pressure data at the full sample rate.The *.sen files contains system data such as the time/date, compass, tilt, temperature, batteryvoltage, etc. These data are sampled once per secondThe *.pck contains the probe check dataThe *.vhd contains the Velocity header data - the data that is collected during the very first secondwhen running Continuous mode, or at the start and end of each Burst.The ASCII files are easy to import into most spreadsheets and data analysis programs.Check out our web pages to gain access to the latest technical notes and user-experience regardingdata analysis and related matters.Quality Assurance and Quality Control Tips:Check the Looking at Velocimeter Data section. If the data looks different from what you expectedand you have reason to believe that this is instrument or deployment related, consult theTroubleshooting section before spending too much time on QA/QC.