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Model 90 Quantifier Sound Level Meter

Page 40

Time Weighting

The Time Weighting of the instrument can be set to either Fast, Slow or Impulse. To set

the Time Weighting, select the Time Weighting option from the menu:

Key Press

Display

Comments

Select the required Time
Weighting and press OK to select.

The select Time Weighting is
indicated by a tick.

Press Exit to return to the main
display.

The Time Weighting applies to the following parameters:

Broadband Mode

L

AF

,L

AS

,L

AI

,L

CF

,L

CS

,L

CI

,L

ZF

,L

ZS

or L

ZI

(not stored)

L

AFmax

,L

ASmax

,L

AImax

,L

CFmax

,L

CSmax

,L

CImax

,L

ZFmax

,L

ZSmax

or L

ZImax

L

AFmin

,L

ASmin

,L

AImin

,L

CFmin

,L

CSmin

,L

CImin

,L

ZFmin

,L

ZSmin

or L

ZImin

L

0.1

to L

99.9

(five simultaneous user-selected values available)

The L

n

’s or Statistical parameters are calculated from Sound Level. Therefore, if the

Time Weighting is set to Fast, the L

n

’s will be calculated from L

AF

, and also for the Slow

and Impulse Time Weightings.

1:1 Octave Band Mode

Filtered L

ZS

,L

ZF

or L

Z

I (not stored)

1:3 Octave Band Mode

Filtered L

ZS

,L

ZF

or L

Z

I (not stored)

Frequency Weighting

The Frequency Weighting of the instrument can be set to either A, C or Z. To set the
Frequency Weighting, select the Frequency Weighting option from the menu:

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Содержание 90 Quantifier

Страница 1: ...r Sound Level Meter Page 1 User Manual for the Pulsar Model 90 Quantifier Sound Level Meters This manual the software to which it relates the program code and drawings are all Copyright Pulsar Instrum...

Страница 2: ...ten consent of Pulsar Instruments Plc No liability is accepted for any inaccuracies or omissions in this manual although due care has been taken to ensure that is it complete and accurate as possible...

Страница 3: ...Layout 14 Installing the software 15 Assembly 15 Preamplifier 15 Using Microphone Extension Cables 16 Batteries 16 Using an external power supply 17 Windshield 17 NK 70 Random Incidence Adaptor 17 Swi...

Страница 4: ...e Installation 50 Connecting the instrument to the PC 50 Understanding how the measurements are stored 51 Section 5 Maintenance Care 53 Section 6 Troubleshooting 54 Basics 54 Calibration 54 Measuremen...

Страница 5: ...Broadband Only MODEL 93 Class 1 Broadband with 1 1 Octave Band Filters MODEL 94 Class 2 Broadband with 1 1 Octave Band Filters MODEL 95 Class 1 Broadband with 1 1 1 3 Octave Band Filters MODEL 96 Cla...

Страница 6: ...Auto Synchronise function Broadband Measurement Mode In Broadband Mode the instrument stored the overall values such as LAeq LAFmax and Ln s as well as storing a noise profile or Time History during e...

Страница 7: ...and Filters cover the following frequency bands 25Hz to 16kHz When the MO 800 6 Options is fitted the 1 3 Octave Band Filters include the additional 20Hz and 20kHz 1 3 Octave Band Filters Options Acce...

Страница 8: ...t Range 7 Start Measurement a Run for 15 minutes 8 Stop Measurement 9 Review Measurement Data Make a 1 1 Octave Band Measurement over 1 minute 1 Switch on 2 Calibrate 3 Set Measurement Mode to 1 1 Oct...

Страница 9: ...ge to the standard noise level display Calibrate the Sound Level Meter If a microphone extension cable is to be used during a measurement the instrument must be calibrated with the cable attached Conn...

Страница 10: ...the screen is the current configuration Key Press Display Comments In this example the measurement duration is set to 30 minutes The Auto Repeat function is switched on The Auto Synchronise function...

Страница 11: ...and the use of the bar graph display in choosing the correct measurement range Change the measurement function To check the current measurement function and to change the measurement function press t...

Страница 12: ...stores the measurement in memory and enters the measurement review mode Review the measurement When the measurement has been stopped the instrument automatically stores the measurement in memory and...

Страница 13: ...ative immediately The basic MODEL 90 instrument is supplied with the following standard accessories Analyser for Windows Software on CD ROM MODEL 90 User Manual Certificates of Calibration ZL 100 USB...

Страница 14: ...Model 90 Quantifier Sound Level Meter Page 14 Instruments Layout...

Страница 15: ...supplied with a removable preamplifier the MV 200D Also a removable preamplifier may be fitted as an option to the Class 2 instruments This preamplifier must be connected to the Sound Level Meter befo...

Страница 16: ...ect the microphone extension cable in the same manner as the MV 200C Preamplifier Batteries The batteries of the MODEL 90 are located behind the cover on the bottom of the instrument Slide the cover t...

Страница 17: ...which may affect the performance of the instrument To use the Windshield push the hole in the windshield over the microphone of the Sound Level Meter The Windshield must be removed before the Sound Le...

Страница 18: ...th the current Date and Time shown at the bottom of the screen The battery level is shown in the top right hand corner of the display Across the top of the display above the numbers is shown the sound...

Страница 19: ...y Press Display Comments The current time and date are shown at the bottom of the screen Measurement Range Key Press Display Comments The current measurement range is shown highlighted Use the Up and...

Страница 20: ...t is set to either 1 1 or 1 3 Octave Band Mode the Run Duration is divided between the frequency bands For example if the measurement duration is set to 30 minutes the MODEL 90 instrument will take a...

Страница 21: ...easurement Auto Synchronise Key Press Display Comments The status of the Auto Synchronise is shown at the bottom of the screen In this example the Auto Synchronise is switched on When the Auto Synchro...

Страница 22: ...n the Acoustic Calibrator before starting the calibration procedure If the calibration is sucessful the instrument will display the calibration information screen Press Exit to return to the main scre...

Страница 23: ...urement the information will be automatically stored in the memory If the Auto Repeat function is enabled the next measurement will start automatically at the end of the previous measurement 1 1 Octav...

Страница 24: ...is running the display shows Running in the top left hand corner If the measurement duration is set to Manual the 1 3 Octave Band frequency will stay on the current frequency until the Up arrow is pr...

Страница 25: ...parameters All of the functions are measured simultaneously and are automatically stored Please note that this function is only available in Broadband Mode Key Press Display Comments The instrument st...

Страница 26: ...rall parameters such a the Leq is paused However the Time History measurement continues and the instrument codes this data When the information is downloaded to the Analyser software the user can see...

Страница 27: ...ing the stored measurements After a measurement has been stopped When the measurement is stopped the data is automatically stored in memory and the instrument enters the measurement review mode Use th...

Страница 28: ...nu option Accept data entry 5 Move through the measurement parameters when running a measurement Move through the stored measurement parameters in memory recall mode Select a lower frequency band in 1...

Страница 29: ...t Mode press the Menu Key The current measurement mode is displayed Please note that the MODEL 90 Sound Level Meters will revert to Broadband Measurement Mode when the instrument is switched off Key P...

Страница 30: ...Quantifier Sound Level Meter Page 30 1 1 Octave Band Mode To select the 1 1 Octave Band Measurement Mode Key Press Display 1 3 Octave Band Mode To select the 1 3 Octave Band Measurement Mode Key Press...

Страница 31: ...he Auto Synchronise functions are all connected and affect each other Always ensure that the status of these three functions is checked before making a measurement When the menu key is pressed the dis...

Страница 32: ...t and Right keys to move through the different settings Press OK to accept the User Time When the instrument is set to either 1 1 or 1 3 Octave Band Mode the Run Duration is divided between the freque...

Страница 33: ...asurement information the memory With the Auto Repeat function enabled the instrument will make further 15 minute measurements one after the next until the total number of measurements has been made T...

Страница 34: ...to control the starting and stopping of the measurement directly However in many applications such as Environmental Noise measurements it is important to start the measurements at a predetermined tim...

Страница 35: ...asurement range is set too low high noise levels will overload the instrument and make the measurement invalid Therefore it is vital that the correct measurement range is chosen for the noise to be re...

Страница 36: ...symbol is shown The bar graph at the top of the screen can be used to select the appropriate measurement range As the user moves between the different measurement ranges the bar graph changes the top...

Страница 37: ...u and press OK Key Press Display Comments Display Contrast To adjust the contrast of the display select the Contrast Option and press OK Key Press Display Comments Select the Lighter or Darker option...

Страница 38: ...and the left and right arrow keys to move between the numbers Press the OK key when the Time is correctly set To set the Date select the Date option and press OK Use the Up and Down arrow keys to chan...

Страница 39: ...calibration level Pulsar Instruments Plcdoes not recommend the use of Acoustic Calibrators other than those manufactured or supplied by Pulsar Instruments Plc for use with the MODEL 90 instruments Ref...

Страница 40: ...I not stored LAFmax LASmax LAImax LCFmax LCSmax LCImax LZFmax LZSmax or LZImax LAFmin LASmin LAImin LCFmin LCSmin LCImin LZFmin LZSmin or LZImin L0 1 to L99 9 five simultaneous user selected values av...

Страница 41: ...inimum Sound Level LAFmin LASmin LAImin LCFmin LCSmin LCImin LZFmin LZSmin or LZImin User Metric LAE LCE or LZE LAIeq LCIeq or LZIeq LAFTeq 1 1 Octave Band Mode No measurements are affected by the Fre...

Страница 42: ...changes or Exit to discard any changes The other Ln values can be altered in the same manner as shown above User Metric The additional measurement parameter provided the MODEL 90 instrument is known...

Страница 43: ...rement functions described in section Time Weighting on page 40 Before the Time Weighting can be selected to either Fast or Slow the User Metric must be set to SEL Configuring the instrument from the...

Страница 44: ...ning Press the right hand arrow key to view the first stored measurement and the left hand arrow key to view the last measurement stored Key Press Display Comments The first measurement stored is show...

Страница 45: ...LAFTeq If the unit was in Overload or Under Range during the measurement this is indicated on the screen The whole measurement duration is displayed on the screen when the Time History data is review...

Страница 46: ...ntifier Sound Level Meter Page 46 1 3 Octave Band Measurements Key Press Display Comments The graphical display of the 1 3 Octave Band measurement is shown with the measurement range shown on the left...

Страница 47: ...Model 90 Quantifier Sound Level Meter Page 47...

Страница 48: ...can be checked for available space and also to allow the user to delete the measurements that are stored To check the available memory select the Memory option from the menu Key Press Display Comment...

Страница 49: ...Model 90 Quantifier Sound Level Meter Page 49 Please note that when the memory has been cleared any measurement previously stored cannot be retrieved and are permanently deleted...

Страница 50: ...ware Connecting the instrument to the PC The MODEL 90 instruments connect to the PC using the supplied DC 80 USB Cable Connect the DC 80 USB Cable to the USB socket on the bottom of the instrument Ens...

Страница 51: ...roadband measurements can be stored depends upon the duration of the measurement The table below shows the maximum time over which measurements can be made Please note that this applies only to Broadb...

Страница 52: ...Model 90 Quantifier Sound Level Meter Page 52...

Страница 53: ...trument body If using the MODEL 90 outdoor use a suitable outdoor measurement kit which has been specifically designed to protect the instrument If the MODEL 90 becomes dusty wipe it down with a cloth...

Страница 54: ...is fitted according to the instructions supplied The Preamplifer is not fitted correctly Class 1 Instruments only For Class 1 Instruments refer to page 15 for details of fitting the preamplifier The...

Страница 55: ...noise level is too high for the current range Select a higher measurement range Under Range symbol is shown The noise level is too low for the current range Select a lower measurement range The measu...

Страница 56: ...EC 61260 Class 1 Microphone Class 1 MK 224 pre polarized Free field Condenser Class 2 MK 216 pre polarized Free field Condenser Random Incidence to ANSI S1 4 with NK 70 Adaptor Capacitance 18pF Microp...

Страница 57: ...s The following metrics can be displayed for a recorded session and stored Broadband Mode LCPeak LAF LAS LAI LCF LCS LCI LZF LZS or LZI not stored LAFmax LASmax LAImax LCFmax LCSmax LCImax LZFmax LZSm...

Страница 58: ...are automatically stored in the instrument memory Noise Profile Short Leq LAeq LCeq or LZeq Up to 11 days at 1 second acquisition Automatic Measurements The unit can be set to record and store data o...

Страница 59: ...pin Expansion Socket Output Cables Standard DC80 USB Cable supplied as standard Optional ZL 811 Power Adaptor Cable for CU 195A Power Supply ZL 812 AC Output Cable to Phono Plug ZL 813 RS232 Output ZL...

Страница 60: ...00 4 Upgrade from 1 1 to 1 1 1 3 Octave Band Filters MO 800 5 Remote Preamplifier for Class 2 Instruments MO 800 6 20Hz 20kHz 1 3 Octave Band Filters Electromagnetic Performance EN 55022 1994 EN 61000...

Страница 61: ...reserve battery power To switch off the calibrator manually press the power button again and the indicator will extinguish to show that the unit is switched off Permanent on Mode For some applications...

Страница 62: ...dern Sound Level Meters have electronic calibration with the level adjusted automatically Adjust the Sound Level Meter to the correct level where applicable When correcting the value generated by the...

Страница 63: ...the spring at the other end Ensure that the battery is inserted with the correct polarity with the negative terminal at the contact with the larger cutout Battery type The battery should be an alkali...

Страница 64: ...han 2 Operating Humidity 25 to 90 Relative Humidity Operating Static Pressure 65 kPa to 108kPa Operating Temperature 10o C to 50o C Storing Temperature 20o C to 60o C Effective Volume 6 19 cm3 0 2 cm3...

Страница 65: ...after exposure to contact discharges up to 4kV and air discharges up to 8kV for both positive and negative voltages relative to earth ground The calibrator conforms to IEC 60942 2003 for a modulated r...

Страница 66: ...c Calibration corrections are listed below for the Pulsar Instruments Plc Capsules and three microphone capsules commonly used in Calibration Laboratories Microphone Correction Values Microphone Type...

Страница 67: ...on program should automatically start If the installation program does not automatically start run D setup exe where D is the drive letter of the CD ROM drive on the PC System Requirements The Analyse...

Страница 68: ...into the instrument to suit different measurement applications and standards The following parameters can be set from within the Analyser software Measurement Mode Run Duration Time Weighting Frequen...

Страница 69: ...2004 Model 91A Sound Level Meter Model 92A Sound Level Meter Model 93A Sound Level Meter Model 94A Sound Level Meter Model 95A Sound Level Meter Model 96A Sound Level Meter Along with their standard a...

Страница 70: ...ntries worldwide For details of your local representative please contact Pulsar Instruments Plc at the address below Contact details for Pulsar Instruments Plc authorised distributors and agents are a...

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