User Manual

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