Ht-instruments HT157 Manuel d'utilisateur

 Copyright HT ITALIA 2011 Release EN 1.02 - 28/12/2011 HT155 – HT157 User manual

HT155 - HT157 EN - 84.4. DISPLAY CONTRAST ADJUSTMENT The instrument allows adjusting the display contract, proceeding as follows: 1. Turn on

HT155 - HT157 EN - 94.6. CONFIGURATION OF MEASURING PARAMETERS 4.6.1. FOREWORD Before activating a recording operation, it is necessary to set

HT155 - HT157 EN - 10Line 1 On the left side of the line there is the voltage battery and on the right side the back-up battery voltage. In ca

HT155 - HT157 EN - 114.6.3. DEFINING THE MEASURE NAME By selecting Line 3 inside the programming menu (see Fig. 6) and pressing the “ ” key,

HT155 - HT157 EN - 122. Press “ ” again to enter the next screen, where it is possible to digit the measure name by using the “ ”, “ ”, “ ” an

HT155 - HT157 EN - 135. CARRYING OUT MEASUREMENTS The instrument is capable of carrying out different types of analyses of the sound pressure

HT155 - HT157 EN - 145.1.2. STATISTIC ANALYSIS OPERATIONS 1. Select the “Statistic” icon and confirm with “ ”. The instrument shows the follo

HT155 - HT157 EN - 15Line 9 This line contains:  The “ ” icon, which indicates the battery charge level  The “ ” icon, which indicates the m

HT155 - HT157 EN - 16 Fig. 13: Graphic screen of statistic analysis 8. The screen shows the diagram of the statistic distribution correspond

HT155 - HT157 EN - 175.1.3. 24-HOUR ANALYSIS OPERATIONS The “24Hours” analysis is a statistic analysis, but has a fixed duration of 24 hours

HT155 - HT157 EN - 18Line 1 The left part shows the current date/time set on the instrument, while the right part shows the measuring range cu

HT155 - HT157 EN - 195. Press the “ ” key to start measuring. After this operation, the instrument:  Starts measuring from the minute indica

HT155 - HT157 EN - 20Initial line The left part shows the current date/time set on the instrument, while the right part shows the measuring ra

HT155 - HT157 EN - 215.1.4. INTEGRATION ANALYSIS OPERATIONS In this type of analysis, the instrument carries out an instant measurement, meas

HT155 - HT157 EN - 22Lines 2- 7 These lines show in real time the instant values of the following quantities, measured by the instrument: LAFp

HT155 - HT157 EN - 23 Line 1  Lines 2-7  Line 8  Line 9 Fig. 21: Screen of integrated values of Integral analysis Line 1 It allows settin

HT155 - HT157 EN - 245.2. NOISE ANALYSIS IN 1/1 AND 1/3 OCTAVE BAND (HT157 ONLY) Further to the statistic analysis, the instrument HT157 allo

HT155 - HT157 EN - 255.2.2. OCTAVE BAND ANALYSIS (1/1) 5.2.2.1. Operations for sections LIST, GRAPH and TOTAL 2. Select the “List” icon and

HT155 - HT157 EN - 263. Press the “ ” key to start recording the values of the spectrum analysis 1/1 with a duration equal to the total measu

HT155 - HT157 EN - 27 Fig. 25: Graphic screen of 1/1 spectrum analysis 9. The screen shows the histogram of the sound pressure level associat

HT155 - HT157 EN - 1 Table of contents: 1. PRECAUTIONS AND SAFETY MEASURES ...

HT155 - HT157 EN - 28 CAUTION The “Max” and “Lock” functions are not active for instant values shown in the graphic bar 4. With flashing cur

HT155 - HT157 EN - 2921. When pressing the “ ” key with paused instrument, measurement is stopped and the result is saved in the internal memo

HT155 - HT157 EN - 305.2.3. ANALYSIS IN THIRD-OCTAVE BAND (1/3) 5.2.3.1. Operations for sections LIST, GRAPH 1. Select the “List” icon and c

HT155 - HT157 EN - 31Line 9 This line contains:  The “ ” icon, which indicates the battery charge level  The “ ” icon which indicated the 1/

HT155 - HT157 EN - 32 With cursor flashing on the “ ” icon, press the “ ” or “ ” keys to select the “Lock” option. Subsequently, press the “

HT155 - HT157 EN - 335.2.3.2. Operations in TOTAL section 1. Select the “Total” item in the main menu (see Fig. 22) and confirm with “ ”. The

HT155 - HT157 EN - 345. Use the “Save” functions to save the screen on the display and the options “Lock” and “Max” respectively to block the

HT155 - HT157 EN - 356. INSTRUMENT ACOUSTIC CALIBRATION 6.1.1. FOREWORD The instrument is regularly calibrated upon purchase and upon first u

HT155 - HT157 EN - 36Line 4 This line indicated the sound pressure level set on the portable calibrator HT151 during the calibration operation

HT155 - HT157 EN - 376.1.3. ACOUSTIC CALIBRATION WITH CALIBRATOR HT151 CAUTION  For the first acoustic calibration of the instrument’s m

HT155 - HT157 EN - 28.1. Foreword ...

HT155 - HT157 EN - 385. Press and hold the “ON” key on the calibrator HT151 to activate the level equal to 94.0dB, looking at the activation

HT155 - HT157 EN - 396.1.3.2. Calibration result display The instrument allows saving up to 256 calibration operations. For subsequent operat

HT155 - HT157 EN - 407. OPERATIONS WITH THE MEMORY The instrument is provided with an internal Flash memory with a capacity of 64Kbytes for s

HT155 - HT157 EN - 417.1.1. RECALLING THE STATISTIC ANALYSIS DATA ON THE DISPLAY 1. Select a datum corresponding to the “STA” indication avai

HT155 - HT157 EN - 427.1.2. RECALLING THE 24H ANALYSIS DATA ON THE DISPLAY 1. Select a datum corresponding to the “24H” indication available

HT155 - HT157 EN - 43 Fig. 45: Display of distribution graphic of the "24H" analysis values 4. Press the “ ” or “ ” keys to go to t

HT155 - HT157 EN - 447.1.3. RECALLING THE INTEGRATION MEASUREMENT DATA ON THE DISPLAY 1. Select a datum corresponding to the “INT” indication

HT155 - HT157 EN - 457.1.4. RECALLING THE DATA OF THE OCTAVE BAND ANALYSIS (1/1) ON THE DISPLAY 1. Select a datum corresponding to the “OCT”

HT155 - HT157 EN - 467.1.4.1. Recalling the data of the analysis in Total octave band (1/1) Within the “OCT” analysis, it is possible to disp

HT155 - HT157 EN - 477.1.5. RECALLING THE DATA OF THE ANALYSIS IN THIRD-OCTAVE BAND (1/3) ON THE DISPLAY 1. Select a datum corresponding to

HT155 - HT157 EN - 31. PRECAUTIONS AND SAFETY MEASURES The instrument has been designed in compliance with the directives regarding electronic

HT155 - HT157 EN - 487.2. DATA TRANSFER ONTO USB PEN DRIVE CAUTION Transferring the data contained in the instrument’s memory onto an exter

HT155 - HT157 EN - 498. OPERATIONS WITH SOUNDVIEW SOFTWARE 8.1. FOREWORD The SoundView Windows software provided with the instrument allows ca

HT155 - HT157 EN - 50 5. Press the “Browse” key and select the folder …\Sound Meter usb driver\ inside the USB pen drive provided (after sav

HT155 - HT157 EN - 518.4. USE OF SOUNDVIEW SOFTWARE After installing the software from the file “Setup.exe” contained in the USB pen drive pr

HT155 - HT157 EN - 528.4.2. FILE MENU This menu contains the following controls: Control Description Input Name (CTRL+N) Key It allows open

HT155 - HT157 EN - 538.4.3. VIEW MENU In this menu there are the following controls, which can be activated by the user in order to carry out

HT155 - HT157 EN - 548.4.5. RESULT MENU This menu contains the controls which allow transferring the recorder data from the instrument, analyz

HT155 - HT157 EN - 559. MAINTENANCE 9.1. GENERAL INFORMATION The instrument You purchased is a precision instrument. During use and storage, c

HT155 - HT157 EN - 5610. TECHNICAL SPECIFICATIONS 10.1. TECHNICAL SPECIFICATIONS Uncertainties are referred to a temperature of 23°C±5°C with

HT155 - HT157 EN - 5710.2. STATISTIC ANALISYS CHARARCTERISTICS  Functions: SLM statistic analysis in weighting A Frequency integration w

HT155 - HT157 EN - 42. GENERAL DESCRIPTION This manual refers to models HT155 and HT157. In the manual, the generic term “instrument” refers t

HT155 - HT157 EN - 5810.5. GENERAL CHARACTERISTICS Display Characteristics: LCD, (240x160pxl), backlit Display update: 1Hz (numerical data),

HT155 - HT157 EN - 5911. SERVICE 11.1. WARRANTY CONDITIONS This instrument is warranted against any material or manufacturing defect, in compl

HT155 - HT157 EN - 6012. APPENDIXES 12.1. APPENDIX 1 – FREQUENCY WEIGHTING CHARACTERISTICS

HT155 - HT157 EN - 6112.2. APPENDIX 2 – CHARACTERISTICS OF 1/3 OCTAVE BAND FILTER

HT155 - HT157 EN - 62

HT155 - HT157 EN - 63

HT155 - HT157 EN - 6412.3. APPENDIX 3 – FREQUENCY WEIGHTING A, C Frequency [Hz] A [dB] C [dB] Frequency [Hz] A [dB] C [dB] 10 -70.4 -1

HT155 - HT157 EN - 6512.4. APPENDIX 4 – CHARACTERISTICS OF 4HZ HIGH-PASS DIGITAL FILTER

Via della Boaria, 40 48018 – Faenza (RA)- Italy Tel: +39-0546-621002 (4 linee r.a.) Fax: +39-0546-621144 Email: [email protected] http://www.ht-inst

HT155 - HT157 EN - 53. PREPARATION FOR USE 3.1. INITIAL INSPECTIONS Before shipment, the instrument’s electronics and mechanics have been ins

HT155 - HT157 EN - 64. OPERATING INSTRUCTIONS 4.1. INSTRUMENT DESCRIPTION 4.1.1. FRONT PANEL LEGEND: 1. Microphone 2. ON key 3. OFF key 4.

HT155 - HT157 EN - 74.2. DESCRIPTION OF FUNCTION KEYS Key Description Pressing the ON key allows turning on and internally resetting the ins