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HT155 - HT157
EN - 1
Table of contents:
1.
PRECAUTIONS AND SAFETY MEASURES .................................................................. 3
1.1.
Preliminary instructions .................................................................................................... 3
1.2.
During use ........................................................................................................................ 3
1.3.
After use ........................................................................................................................... 3
2.
GENERAL DESCRIPTION .............................................................................................. 4
3.
PREPARATION FOR USE .............................................................................................. 5
3.1.
Initial inspections .............................................................................................................. 5
3.2.
Instrument power supply .................................................................................................. 5
3.3.
Calibration ........................................................................................................................ 5
3.4.
Storage ............................................................................................................................. 5
4.
OPERATING INSTRUCTIONS ........................................................................................ 6
4.1.
Instrument description ...................................................................................................... 6
4.1.1.
Front panel .................................................................................................................... 6
4.1.2.
Output interface ............................................................................................................. 6
4.2.
Description of function keys ............................................................................................. 7
4.3.
Analogue output description............................................................................................. 7
4.4.
Display contrast adjustment ............................................................................................. 8
4.5.
Turning ON/OFF the instrument ...................................................................................... 8
4.6.
Configuration of measuring parameters ........................................................................... 9
4.6.1.
Foreword ....................................................................................................................... 9
4.6.2.
Programming menu interface ........................................................................................ 9
4.6.3.
Defining the measure name ........................................................................................ 11
5.
CARRYING OUT MEASUREMENTS ............................................................................ 13
5.1.
Statistic analysis of noise ............................................................................................... 13
5.1.1.
Initial operations .......................................................................................................... 13
5.1.2.
Statistic analysis operations ........................................................................................ 14
5.1.3.
24-hour analysis operations ........................................................................................ 17
5.1.4.
Integration analysis operations .................................................................................... 21
5.2.
Noise analysis in 1/1 and 1/3 octave band (HT157 only)............................................... 24
5.2.1.
Initial operations .......................................................................................................... 24
5.2.2.
Octave band analysis (1/1) .......................................................................................... 25
5.2.2.1.
Operations for sections LIST, GRAPH and TOTAL ................................................... 25
5.2.3.
Analysis in third-octave band (1/3) .............................................................................. 30
5.2.3.1.
Operations for sections LIST, GRAPH ....................................................................... 30
5.2.3.2.
Operations in TOTAL section ..................................................................................... 33
6.
INSTRUMENT ACOUSTIC CALIBRATION ................................................................... 35
6.1.1.
Foreword ..................................................................................................................... 35
6.1.2.
Preliminary operations ................................................................................................. 35
6.1.3.
Acoustic calibration with calibrator HT151 .................................................................. 37
6.1.3.1.
Replacing the calibrator battery ................................................................................. 38
6.1.3.2.
Calibration result display ............................................................................................ 39
6.1.4.
Direct acoustic Calibration ........................................................................................... 39
7.
OPERATIONS WITH THE MEMORY ............................................................................ 40
7.1.
Recalling results on the display...................................................................................... 40
7.1.1.
Recalling the statistic analysis data on the display ..................................................... 41
7.1.2.
Recalling the 24H analysis data on the display ........................................................... 42
7.1.3.
Recalling the integration measurement data on the display ........................................ 44
7.1.4.
Recalling the data of the octave band analysis (1/1) on the display ........................... 45
7.1.4.1.
Recalling the data of the analysis in Total octave band (1/1) ..................................... 46
7.1.5.
Recalling the data of the analysis in third-octave band (1/3) on the display ............... 47
7.2.
Data transfer onto USB Pen Drive ................................................................................. 48
8.
OPERATIONS WITH SOUNDVIEW SOFTWARE ......................................................... 49
Summary of Contents for HT155
Page 1: ... Copyright HT ITALIA 2011 Release EN 1 02 28 12 2011 HT155 HT157 User manual ...
Page 2: ......
Page 62: ...HT155 HT157 EN 60 12 APPENDIXES 12 1 APPENDIX 1 FREQUENCY WEIGHTING CHARACTERISTICS ...
Page 63: ...HT155 HT157 EN 61 12 2 APPENDIX 2 CHARACTERISTICS OF 1 3 OCTAVE BAND FILTER ...
Page 64: ...HT155 HT157 EN 62 ...
Page 65: ...HT155 HT157 EN 63 ...
Page 67: ...HT155 HT157 EN 65 12 4 APPENDIX 4 CHARACTERISTICS OF 4HZ HIGH PASS DIGITAL FILTER ...