User Manual

HT155 - HT157
EN - 2
8.1. Foreword ........................................................................................................................ 49
8.2. Minimum system requirements ...................................................................................... 49
8.3. Installing the driver USB ................................................................................................. 49
8.4. Use of SoundView software ........................................................................................... 51
8.4.1. Copy and Print commands .......................................................................................... 51
8.4.2. File menu ..................................................................................................................... 52
8.4.3. View menu ................................................................................................................... 53
8.4.4. Name Menu ................................................................................................................. 53
8.4.5. Result menu ................................................................................................................ 54
8.4.6. Calibration menu ......................................................................................................... 54
8.4.7. Help menu ................................................................................................................... 54
9. MAINTENANCE ............................................................................................................ 55
9.1. General information ........................................................................................................ 55
9.2. replacing the batteries .................................................................................................... 55
9.3. Cleaning the instrument ................................................................................................. 55
9.4. End of life ....................................................................................................................... 55
10. TECHNICAL SPECIFICATIONS ............................................................................. 56
10.1. Technical specifications .......................................................................................... 56
10.2. Statistic analisys chararcteristics ............................................................................ 57
10.3. Characteristics of analysis in 1/1 and 1/3 octave band (HT157 only) .................... 57
10.4. Characteritics of portable calibrator HT151 ............................................................ 57
10.5. General characteristics ........................................................................................... 58
10.6. Accessories ............................................................................................................ 58
11. SERVICE ................................................................................................................ 59
11.1. Warranty conditions ................................................................................................ 59
11.2. Service .................................................................................................................... 59
12. APPENDIXES ......................................................................................................... 60
12.1. Appendix 1 – Frequency weighting characteristics ................................................ 60
12.2. Appendix 2 – characteristics of 1/3 octave band filter ............................................ 61
12.3. Appendix 3 – frequency weighting A, C ................................................................. 64
12.4. Appendix 4 – characteristics of 4Hz high-pass digital filter .................................... 65