3M Personal Safety Division
TM
3M
SoundPro SE/DL Series Sound Level Meters
SoundPro User Manual
Models SE and DL
3MTM SoundPro Sound Level Meter
Dangers, Warnings, Cautions & Battery
Danger!
Failure to observe the following procedures may result in serious personal injury
• Not for use in explosive or hazardous locations. This product is not intrinsically safe.
Warning!
Failure to observe the following procedures could damage the instrument
• Read the manual before operation.
• Do not store in temperatures exceeding 60°C (140°F).
• Do not immerse in liquids.
• Condensation may damage your instrument.
• Substitution of components may impair the accuracy of the instrument. Repair
should be performed by authorized service personnel only.
Caution!
General
• The battery in this instrument has limited shelf-life, even if never used.
• A non-condensing environment is required for proper measurements.
Intended Use:
The SoundPro is intended to measure sound pressure levels in air. Consult your
company’s safety professional for local standards, or call 3M at 1-800-243-4630.
ii Table of Contents
Models SE and DL
TABLE OF CONTENTS
Introduction .............................................................................................................. 1
Models and options .................................................................................................. 1
Frequency resolution ............................................................................................... 2
Octave bands .......................................................................................................................... 2
Third -octave bands ................................................................................................................ 3
Naming bands ......................................................................................................................... 3
Analysis type ........................................................................................................................... 5
Logging explained.................................................................................................... 5
Physical Characteristics .......................................................................................... 5
The Display ............................................................................................................................. 5
Hardware interfaces ................................................................................................................ 6
Memory card slot ............................................................................................................... 6
USB port ............................................................................................................................ 6
AC/DC port ........................................................................................................................ 7
Power jack ......................................................................................................................... 7
Auxiliary port ...................................................................................................................... 7
Information screen ................................................................................................... 8
Screen contents ...................................................................................................................... 8
Detection Management Software DMS ................................................................... 9
DMS Start Page ...................................................................................................................... 9
Getting Started ....................................................................................................... 11
Checking the equipment ........................................................................................ 11
Installing the preamp ............................................................................................................. 12
Microphone and accessories ................................................................................ 12
Class/Type 1 and Class/Type 2 instrument .......................................................................... 13
Windscreen ...................................................................................................................... 13
Providing power ..................................................................................................... 14
Installing Batteries ................................................................................................................. 14
Battery power explained ....................................................................................................... 15
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Models SE and DL
Checking or changing type .................................................................................................. 15
Using power supply or auto adapter ..................................................................................... 17
Turning on .............................................................................................................. 18
Start screen and the keypad ................................................................................................. 18
SoundPro functionality .......................................................................................... 19
The keypad explained ........................................................................................................... 19
Indicators explained .............................................................................................................. 20
Navigating ............................................................................................................................. 21
Turning off .............................................................................................................. 21
Basic setups ........................................................................................................... 23
Changing microphone settings ............................................................................................. 24
Time and date ....................................................................................................................... 25
Measurement type (SLM, 1/1, 1/3, STI-PA, RT60) ............................................................... 26
Meter 1/Meter 2 Parameters (i.e. response time, weighting) ................................................ 27
Measurement setup (for community noise) .......................................................................... 28
C-A measurement settings .............................................................................................. 30
Logging ................................................................................................................... 31
Logging options ..................................................................................................................... 31
Exceedance level .................................................................................................................. 31
Filters .................................................................................................................................... 31
Logging interval ..................................................................................................................... 31
Setting logging options .......................................................................................................... 32
Setting up display options ..................................................................................... 33
Language .............................................................................................................................. 34
Backlight ................................................................................................................................ 35
Contrast ................................................................................................................................. 36
Advanced setups ................................................................................................... 37
Auto-Run ................................................................................................................. 38
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Models SE and DL
Setting up auto-run ................................................................................................ 38
Date setting ........................................................................................................................... 38
Days of week setting ............................................................................................................. 40
Auto-run shutdown screen .................................................................................................... 42
Auto-run shutdown screen explained .............................................................................. 42
Timed run setting .................................................................................................................. 43
Level-triggered auto-on setting ............................................................................................. 44
Locking setup or run mode ................................................................................... 46
Setting secure run or secure setup (locking) ........................................................................ 46
About Secure Run ........................................................................................................... 46
About Secure Setup ........................................................................................................ 46
Disabling secure run or secure setup (unlocking)................................................................. 49
Secure code backup number .......................................................................................... 49
Digital outputs/Triggering ...................................................................................... 50
Tracking runs ........................................................................................................................ 50
Digital outputs and SPL ........................................................................................................ 51
Communications .................................................................................................... 51
QSP/Serial ............................................................................................................................ 52
Mass Storage ........................................................................................................................ 52
Viewing real-time measurements remotely ........................................................................... 53
GPS ....................................................................................................................................... 54
GPS displa y ..................................................................................................................... 54
GPS explained ................................................................................................................. 54
Preparing to measure & running ........................................................................... 57
Virtual meters ......................................................................................................... 57
Meter 1/Meter 2 explained .................................................................................................... 57
Measurement notation (IEC/ISO) ........................................................................... 57
Overview of running a session/study ................................................................... 58
Preparing to measure ............................................................................................ 59
Sessions and Studies ........................................................................................................... 59
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Models SE and DL
Measurement range .............................................................................................................. 60
Calibrate .................................................................................................................. 61
Calibration screen ................................................................................................................. 61
Pre-Calibration ................................................................................................................. 61
Post-Calibration ............................................................................................................... 61
Performing a calibration ........................................................................................................ 62
Running a session/study ....................................................................................... 64
Measurement navigation ....................................................................................... 65
Using softkeys in measurement screens .............................................................................. 65
Changing displayed measurement .................................................................................. 66
Analysis type, time response and weighting ................................................................... 66
Measurement screen icons ................................................................................... 67
Descriptor types .................................................................................................................... 67
Measurement screens ............................................................................................ 68
Bar Chart and Filtered Bar Chart .......................................................................................... 68
Community Noise screen ...................................................................................................... 69
Dosimetry screen .................................................................................................................. 70
Dosimetry measurements ............................................................................................... 70
Tabulation screens ................................................................................................................ 71
1/1 and 1/3 octave analysis measurement results .................................................................... 71
Time History/Back-erase screen ........................................................................... 72
Back-erasing........................................................................................................... 72
Results of back-erasing ........................................................................................................ 73
Stopping a session ................................................................................................................ 75
Stopping and pausing ...................................................................................................... 75
RT60, Curves, and STI-PA ..................................................................................... 77
Additional options .................................................................................................. 77
Reverberation........................................................................................................................ 77
Reverberation time (RT60) ................................................................................................... 78
Reverberation (RT60) methods ............................................................................................ 78
Interrupted noise .............................................................................................................. 79
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Models SE and DL
Impulse noise .................................................................................................................. 79
Reverberation options ........................................................................................................... 80
Setting up reverberation ........................................................................................................ 81
Running reverberation test .................................................................................................... 82
Reverberation results ............................................................................................................ 83
RT60 summary screen .................................................................................................... 84
Viewing RT60 values of each band ................................................................................. 84
Deleting RT60 value in a filtered band ............................................................................ 84
Decay curve screen ......................................................................................................... 85
Tabular RT60 screen ....................................................................................................... 86
Curves ..................................................................................................................... 87
Captured curves ..................................................................................................... 87
Captured curve applications ................................................................................................. 87
Setting up captured curves ................................................................................................... 88
Running captured curves ...................................................................................................... 90
Criterion curve families ......................................................................................... 91
Types of Criterion Curves ..................................................................................................... 91
Setting up criterion curves .................................................................................................... 92
Audiometric background curves ........................................................................... 94
Setting up audiometric background curves ........................................................................... 94
Running and viewing curves ................................................................................. 96
Curve measurements and results ......................................................................................... 96
Speech Intelligibility ............................................................................................... 98
STI-PA testing ....................................................................................................................... 98
Zones .................................................................................................................................... 98
Selecting STI scale or CIS scale .......................................................................................... 98
STI scale .......................................................................................................................... 99
Common Intelligibility Scale (CIS) ................................................................................... 99
When to take STI-PA readings? ...................................................................................... 99
Conducting a STI-PA test (overview of steps) .................................................................... 100
STI-PA setup ....................................................................................................................... 100
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Models SE and DL
Conducting a level setup (for STI-PA) ................................................................................ 103
Running a speech intelligibility study .................................................................................. 103
STI-PA results screens ....................................................................................................... 104
STI-PA measurement and scale results screen ............................................................ 104
STI-PA modulation screen ............................................................................................ 105
STI-PA modulation envelope screen ............................................................................. 106
Applying captured curves for STI-PA testing ...................................................................... 108
Viewing Past Measurements ............................................................................... 111
Files ....................................................................................................................... 111
File directories ...................................................................................................... 111
File directory screen explained ........................................................................................... 112
Viewing past sessions/studies (review mode) .................................................................... 112
Loading and deleting files ................................................................................................... 115
Session directory ................................................................................................................ 116
Navigating in a session/config. directory ....................................................................... 117
Naming and renaming files ............................................................................................ 117
Configuration directory ....................................................................................... 118
Saving (& naming) setup file (config. file) ........................................................................... 118
Viewing, loading, deleting setup files (config.) .................................................................... 119
Memory card ......................................................................................................... 120
Compatibility........................................................................................................................ 120
Formatting a card with the SoundPro ................................................................................. 120
Communicating .................................................................................................... 121
Communicating with a PC ................................................................................... 121
Using Detection Management Software DMS .................................................................... 121
Using an external card reader ....................................................................................... 121
Working with measurement data in DMS ........................................................................... 121
DMS and working with SoundPro data ............................................................................... 122
AC/DC output ........................................................................................................ 123
AC output ............................................................................................................................ 123
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Models SE and DL
DC output ............................................................................................................................ 123
Specifications ....................................................................................................... 125
Conformance to standards .................................................................................. 125
Acoustics ....................................................................................................................... 125
EMC emissions and immunity ....................................................................................... 125
Mechanical characteristics .................................................................................. 125
Electrical characteristics ..................................................................................... 126
Power sources ............................................................................................................... 126
Internal power ......................................................................................................................... 126
External power ........................................................................................................................ 127
Preamplifier (removable) ............................................................................................... 127
Meters ............................................................................................................................ 127
Bandwidth ...................................................................................................................... 127
Octave filters (optional) ................................................................................................. 128
Third-octave filters (optional) ......................................................................................... 128
Instrument noise ............................................................................................................ 128
Environmental effects .......................................................................................... 128
Temperature .................................................................................................................. 128
Humidity ......................................................................................................................... 129
User interface ....................................................................................................... 129
Display ........................................................................................................................... 129
Keypad .......................................................................................................................... 129
Languages ..................................................................................................................... 129
Input/output .......................................................................................................... 129
Microphones .................................................................................................................. 129
AC/DC outputs ............................................................................................................... 130
Communications ports ................................................................................................... 131
Measurements ...................................................................................................... 131
Types ............................................................................................................................. 131
Ranges .......................................................................................................................... 131
Measurement parameters ............................................................................................. 131
Other .............................................................................................................................. 132
Calibration ............................................................................................................ 132
Studies and sessions ........................................................................................... 132
Special features .................................................................................................... 132
Security .......................................................................................................................... 132
Back-erase .................................................................................................................... 133
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Models SE and DL
Logging (optional) ................................................................................................ 133
Part numbers ........................................................................................................ 133
Replacement parts ........................................................................................................ 133
Optional parts ................................................................................................................ 134
Port pinouts .......................................................................................................... 135
AC/DC jack.......................................................................................................................... 135
Auxiliary connector .............................................................................................................. 135
Block Diagram for SoundPro .............................................................................. 136
Glossary of Terms ................................................................................................ 137
Customer service ................................................................................................. 149
Contacting 3M ...................................................................................................... 149
Warranty ............................................................................................................... 150
FIGURES
Figure 1-1: SoundPro Models SE and DL and Option 1 and Option 2........................................... 1
Figure 1-2: Octave bands .................................................................................................................. 2
Figure 1-3: Third Octave bands ........................................................................................................ 3
Figure 1-4: Hardware Interface Panel ............................................................................................... 6
Figure 1-5: The Unit Information screen .......................................................................................... 8
Figure 2-1: Identify SoundPro equipment ...................................................................................... 11
Figure 2-2: SoundPro & Preamp ..................................................................................................... 12
Figure 2-3: SoundPro with microphone and windscreen ............................................................. 13
Figure 2-4: Installing batteries ........................................................................................................ 14
Figure 2-5: Battery check screen ................................................................................................... 15
Figure 2-6: Selecting Setup in the Start Screen ............................................................................ 16
Figure 2-7: Selecting battery type in battery check screen .......................................................... 16
Figure 2-8: Attaching the charger adapter with the plug adapter ................................................ 17
Figure 2-9: Base (or bottom) of SoundPro .................................................................................... 17
Figure 2-10: SoundPro SE/DL start screen and keypad ................................................................. 18
Figure 3-1: Microphone Settings (Signal Input screen) ................................................................ 24
Figure 3-2: Time and Date Settings ................................................................................................ 25
Figure 3-3: Measurement type and start screen ........................................................................... 26
Figure 3-4: Meter 1 and Meter 2 parameters .................................................................................. 27
Figure 3-5: Measures screen for community noise settings ........................................................ 28
Figure 3-6: C-A measurement settings for Meter 1 and Meter 2 .................................................. 30
Figure 3-7: Logged Data Chart example ........................................................................................ 31
Figure 3-8: Logging screen explained ........................................................................................... 32
Figure 3-9: Display setup screen .................................................................................................... 33
Figure 3-10: Language screen .......................................................................................................... 34
Figure 3-11: Backlight setting ........................................................................................................... 35
Figure 4-1: Auto-Run with Date selected ....................................................................................... 38
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Models SE and DL
Figure 4-2: Setting Date parameters for Auto-Run #1 .................................................................. 39
Figure 4-3: Example of setting up Auto-Run (QSP-II) ................................................................... 40
Figure 4-4: Day of the Week (DOW) setup ..................................................................................... 41
Figure 4-5: Auto-Run Shutdown screen ........................................................................................ 42
Figure 4-6: Timed Run setup screen .............................................................................................. 43
Figure 4-7: Level-Triggered screen ................................................................................................ 44
Figure 4-8: Secure/Lock option ...................................................................................................... 47
Figure 4-9: Secure/Lock screen ...................................................................................................... 47
Figure 4-10: Adding code for secure/lock screen ........................................................................... 48
Figure 4-11: Secure/lock run prompt ............................................................................................... 48
Figure 4-12: Secure/lock setup prompt............................................................................................ 49
Figure 4-13: Digital-Out screen ......................................................................................................... 50
Figure 4-14: QSP/Serial ..................................................................................................................... 52
Figure 4-15: Mass Storage ................................................................................................................ 52
Figure 4-16: Log to Port .................................................................................................................... 53
Figure 4-17: Comm-Set screen for GPS data .................................................................................. 54
Figure 4-18: Viewing GPS coordinates in COMM-Set screen ........................................................ 55
Figure 5-1: Bar chart screen (A) and Filtered Bar Chart (B) ......................................................... 60
Figure 5-2: Attaching calibrator to SoundPro ............................................................................... 62
Figure 5-3: Setting pre-cal screen .................................................................................................. 63
Figure 5-4: Calibration history screen ........................................................................................... 63
Figure 5-5: Post-Calibrate history screen ...................................................................................... 64
Figure 5-6: Bar Chart screen in run mode ..................................................................................... 64
Figure 5-7: Selecting measurements with Lookup softkey .......................................................... 66
Figure 5-8: Example measurement icons & descriptors .............................................................. 67
Figure 5-9: Bar Chart screen and Filtered Bar Chart screen ........................................................ 68
Figure 5-10: Community Noise screen............................................................................................. 69
Figure 5-11: Dosimetry screen ......................................................................................................... 70
Figure 5-12: Tabulation screen for octave filtering ......................................................................... 71
Figure 5-13: Back-erasing ................................................................................................................. 72
Figure 5-14: Time Log screen ........................................................................................................... 74
Figure 5-15: Stopping and pausing .................................................................................................. 75
Figure 6-1: Reverb Time .................................................................................................................. 78
Figure 6-2: Interrupted noise example ........................................................................................... 79
Figure 6-3: Reverb Time Setup screen........................................................................................... 81
Figure 6-4: Reverb Time Setup screen........................................................................................... 83
Figure 6-5: RT60 bar chart screen .................................................................................................. 84
Figure 6-6: Decay curve screen ...................................................................................................... 85
Figure 6-7: Tabular octave filtering RT screen .............................................................................. 86
Figure 6-8: Selecting measurement type for curves ..................................................................... 88
Figure 6-9: Captured Curves and Survey mode ............................................................................ 89
Figure 6-10: Selecting 1/1 or 1/3 for measurement type ................................................................. 90
Figure 6-11: Capturing a curve (CAP-1) ........................................................................................... 91
Figure 6-12: Selecting measurement type for curves ..................................................................... 92
Figure 6-13: Curves setup screen example ..................................................................................... 93
Figure 6-14: 1/1 or 1/3 octave measurement type for audiometric testing ................................... 94
Figure 6-15: Selecting measurement type for curves ..................................................................... 95
Figure 6-16: Audiometric booth setup in the curves screen .......................................................... 95
xi Table of Contents
Models SE and DL
Figure 6-17: Curve results ................................................................................................................. 97
Figure 6-18: Measurement type selection (STIPA) ........................................................................ 101
Figure 6-19: STI-PA setup screen ................................................................................................... 102
Figure 6-20: Level set-up and average decibel level .................................................................... 103
Figure 6-21: STI-PA measurement (scale results) screen ............................................................ 104
Figure 6-23: STI-PA Modulation envelope screen ......................................................................... 106
Figure 6-26: Captured curves/background noise ......................................................................... 108
Figure 6-27: Post CAP-1 applied during STI-PA test .................................................................... 108
Figure 7-1: File Screen .................................................................................................................. 112
Figure 7-2: Start menu screen ...................................................................................................... 113
Figure 7-3: File menu screen ........................................................................................................ 113
Figure 7-4: Data File screen .......................................................................................................... 114
Figure 7-5: Selecting past study data (review mode) ................................................................. 114
Figure 7-6: Viewing past data example ........................................................................................ 115
Figure 7-7: Loading and deleting files ......................................................................................... 116
Figure 7-8: Examples of directory screens.................................................................................. 116
Figure 7-9: Naming a file in the Data File screen ........................................................................ 117
Figure 7-10: Saving/Creating setup file (config. file) .................................................................... 118
Figure 7-11: Viewing, loading, deleting setup files ....................................................................... 119
Figure A-1: Pinout for the AC/DC output jack .............................................................................. 135
Figure A-2L Auxiliary connector .................................................................................................... 135
TABLES
Table 1-1: Acoustical range bands ........................................................................................................... 4
Table 2-1: Keypad explained .................................................................................................................. 19
Table 2-2: Screen Indicators................................................................................................................... 20
Table 3-1: Required microphone settin gs ............................................................................................... 23
Table 3-2: Measures screen explained ................................................................................................... 29
Table 4-1: Level triggered auto-on settings explained ............................................................................ 45
Table 5-1: Measurement notations ......................................................................................................... 57
Table 5-2: Sessions and studies explained ............................................................................................ 59
Table 5-3: Measurement screens ex plained ........................................................................................... 65
Table 5-4: Measurement icons and screen descriptors explained .......................................................... 67
Table 6-1: Reverb time set-up options .................................................................................................... 80
Table 6-2: Tabular RT60 field explanation .............................................................................................. 86
Table 6-3: Measures setup screen parameters explained ................................................................... 101
Table 8-1: AC output ............................................................................................................................ 123
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Models SE and DL
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1 Models and options
Models SE and DL
Part #
Model
Summary and
Statistical Data
SP-SE-2
SoundPro SE SLM
X X
SP-SE-2-1/1
SoundPro SE 1/1 Octave RTA
X X X SP-SE-2-1/3
SoundPro SE 1/1 & 1/3 Octave RTA
X SP-SE-1
SoundPro SE Sound Level Meter
X X
SP-SE-1- 1/1
SoundPro SE 1/1 Octave RTA
X X X
SP-SE-1-1/3
SoundPro SE 1/1 & 1/3 Octave RTA
X X X
X
SP-DL-2
SoundPro DL Datalogging SLM
X X X
SP-DL-2 – 1/1
SoundPro DL 1/1 Octave Dataloggi ng R TA
X SP-DL-2 – 1/3
SoundPro DL 1/1 & 1/3 Octave Datalogging RTA
X X X X X SP-DL-1
SoundPro DL Datalogging SLM
X X X SP-DL-1 – 1/1
SoundPro DL 1/1 Datalogging RTA
X X X X
SP-DL-1 – 1/3
SoundPro DL 1/1 & 1/3 Octave Datalogging RTA
X X X X
X
Part #
Description
Compatible with the following models:
Option-1
Acoustic Spectral Curves
SP-DL-2-1/1 SP-DL-2-1/3 SP-DL-1-1/1 SP-DL-1-1/3
Option – 2
Speech Intelligibility (STI-PA) with
Curves
SP-DL-2-1/1 SP-DL-2-1/3 SP-DL-1-1/1 SP-DL-1-1/3
Reverberation
Reverberation measurement and RT60
(SoundPro SE and DL models with 1/1 and/ or 1/3 only) includes:
SP-DL-2-1/1 SP-DL-2-1/3 SP-DL-1-1/1 SP-DL-1-1/3
Octave bands
Introduction
The SoundPro SE and DL series of sound level met ers (SLM) from 3M are advanced
instruments with highly adaptable characteristics. This manual explains the features
and functions of all models in the series and points out distinctions between the
models.
Models and options
There are twelve models in the SoundPro SE and DL series. The differences betw een
models are accounted for by three primary characteristics: accuracy of measurement,
frequency resolution, and the types of data stored. The table in Figure 1-1
summarizes the characteristics of all twelve models and includes add-on features for
Reverberation, Speech Intelli gibility and Acoustic Spectral Curves.
Speech Intelligibility (STI-PA) and
accessories and Acoustic Spectral
analysis (part number: 053-768)
CHAPTER
1
Data
Class/Type 2
Class/Type 1
SP-SE-2-1/1 SP-SE-2-1/3 SP-SE-1-1/1 SP-SE-1-1/3
SP-SE-2-1/1 SP-SE-2-1/3 SP-SE-1-1/1 SP-SE-1-1/3
●SP-SE-2-1/1 SP-SE-2-1/3 SP-SE-1-1/1 SP-SE-1-1/3
Time History
1/1 Octave RTA
1/3 Octave RTA
Figure 1-1: SoundPro Models SE and DL and Option 1 and Option 2
2 Frequency resolution
Models SE and DL
Level
Octave bands
Frequency resolution
The sounds we hear are rarely pure tones at a single frequency but rather a
mixture of frequencies of varying amplitudes. Some sounds, such as a whistle
or a horn, have frequencies concentrated in relatively narrow regions of the
audio spectrum, which ranges from approximately 20 Hz to 20,000 Hz. Other
sounds, more generally thought of as noise, include components from many
regions of the entire spectrum.
When analyzing sound as noise, we usually are concerned with the total
impact of the sound signal. In other words, we are usually satisfied with a
broadband measurement of sound in the environment. When we are seeking
to isolate a sound from other sounds, for instance to detect the source of a
sound or to measure how much particular sounds contribute to the overall
sound level, we may want to look at the frequency components of the sound.
Octave bands
The ability of an instrument to separate a signal into its frequency
components is known as a spectral analysis. In sound pressure
measurement, the audio spectrum is divided into adjacent frequency bands
called octaves, where the center frequency of each octave band is twice the
center frequency of the octave band directly below it. There are eleven octave
bands in the audio spectrum.
Figure 1-2 illustrates the relationship between the bandwidth of a typical
sound measuring instrument and the octave bands that span the audio spectrum. Note that the highest and lowest octaves at 16 Hz and 16 kHz lie
entirely within the bandwidth of the instrument.
Figure 1-2: Octave bands
3 Frequency resolution
Models SE and DL
Level
Third -octave bands
Third -octave bands
Each octave band can be divided into three adjacent bands called thirdoctave band. Because of the logarithmic relationship between adjacent
bands, the center frequencies of third-octave bands differ from each other by
26%. For example, the center frequency of the next third-octave band above
the 1000 Hz third-octave band is at 1260 Hz. Figure 1-3 is similar to Figure 12 but shows the thirty-three third-octave bands in relation to the instrument’s
bandwidth.
Figure 1-3: Third Octave bands
Naming bands
Bands are conventionally named for their center frequencies in accordance
with acoustical industry standards. Table 1-1 identifies the SoundPr o SE or
DL models that have octave and third-oc ta ve bands option with their exact
center frequencies and their corresponding standardized names.
4 Frequency resolution
Models SE and DL
Frequency (Hz)
Bands (Hz)
12.589
12.5
15.849
16
16
19.953 20
25.119 25
31.623
31.5
31.5
39.811 40
50.119 50
63.096
63
63
79.433 80
100.00
100
125.89
125
125
158.49
160
199.53
200
251.19
250
250
316.23
315
398.11
400
501.19
500
500
630.96
630
794.33
800
1000.0
1000
1000
1258.9
1250
1584.9
1600
1995.3
2000
2000
2511.9
2500
3162.3
3150
3981.1
4000
4000
5011.9
5000
6309.6
6300
7943.3
8000
8000
10000
10000
12589
12500
15849
16000
16000
19953
20000
Naming bands
Exact Center
Names of Octave
Names of Third-octave
Bands (Hz)
Table 1-1: Acoustical range bands
5 Logging explained
Models SE and DL
Analysis type
Analysis type
All SoundPro SE/DL instruments are capable of analyzing sound signals over
the full bandwidth of the instrument also referred to as “broadband
measurement”. If your instrument comes equipped with a filter, it can perform
an octave or a third-octave analysis, or both, depending upon the type of filter
installed. You can vary the analysis type between sessions, and the analysis
type selection remains constant throughout the session.
Analysis types are identified in SoundPro SE/DL by the following names:
SLM - Broadband measurements
•
1/1 - Octave filtering
•
1/3 - Third-octave filtering
•
• STI-PA -Speech Intelligibi l ity
Logging explained
Although you can view the current sound pressure level at any time that the
instrument is operating (See “Bar Chart and Filtered Bar Chart” on page 67),
most measurements are reported for data obtained over the entire course of a
study or session. In some circumstances, however, you may want to save
intermediate measurement results. The SoundPro DL logging option provides
you with that capability.
With logging enabled, you can save selected measurements at fixed intervals
during a session. You can set logging to occur as often as once per second or
as seldom as once per hour. Once the logging characteristics are determined,
the setup remains the same for the duration of the session.
Logged data is automatically saved to the instrument’s memory card and can
be viewed in QSP II (“Information screen” on page 8).
NOTE: You must use a compatib le SD card. For inf ormation about
replacing the SD card, see “Compatibility” on page 117.
Physical Characteristics
The Display
The transflective LCD display contains an area on the top of the screen for
indicators including run, pause, stop icons and a run time clock. The middle
of the screen contains a fine resolution of pixels in which data is displayed
6 Physical Characteristics
Models SE and DL
Hardware interfaces
both numerically and graphically. This is explained in further detail in
Chapter 2, “The Display and keypad”).
Hardware interfaces
The Hardware Interface Panel, shown in Figure 1- 4, is located under a
hinged cover in the base of the instrument. The cover can be lifted by a tab
at one side, and snapped shut again by closing and pressing firmly at the
center.
Figure 1-4: Hardware Interface Panel
Memory card slot
A Secure Digital (SD) removable memory card is shipped with each
SoundPro SE/DL instrument. The card should always be in place when you
are operating the instrument. More information about operating with the
memory card is given under “Memory card” on page 106.
NOTE: You must use a compatible SD card. For information about
replacing the SD card, see “Compatibility” on page 117.
USB port
A USB cable is shipped with each SoundPro SE/DL instrument. One end fits
the mini B port in the instrument. The other end fits a standard USB
connector on a personal computer. A USB connection to a personal
computer allows files to be transferred, settings to be downloaded to the
instrument, and post- session analysis to be performed in the computer using
data files created in the instrument.
7 Physical Characteristics
Models SE and DL
Hardware interfaces
AC/DC port
Connect a cable with a standard 3.5 mm stereo plug to this jack to obtain AC
and DC output signals. Users are responsible for providing their own cable.
Power jack
DC power can be delivered to the instrument through the Power jack. Power
will be taken from the external source rather than the instrument’s batteries
when the external source provides 8 to 16 volts DC (300ma minimum).
Two optional sources for this power are available: a switching power supply
connected to an AC source and DC power provided through the accessory
jack of most automobiles. For the technical specifications, see “Power
sources” in Appendix A. Part numbers are given under “Optional parts” in
Appendix A.
Auxiliary port
Use this port to connect the SoundPro SE/DL instrument to other devices.
The two types of functions, described below, are available through the
terminals of this port. A pinout of the port is provided under “Auxiliary
connector” on page 139.
• Digital I/O - A group of contacts within the port provides one, logic- level
input and three, logic-level outputs. See “Digital Outputs/Triggering” on
page 50 are information about configuring and using the triggers.
• RS-232 - A group of contacts within the port supports the RS-232
protocol for communication between the instrument and other devices,
such as a Global Positioning Satellite (GPS) receiver. See “GPS” on
page 54 for information about configuring the port for this purpose.
8 Information screen
Models SE and DL
1
Screen contents
Information screen
Every SoundPro SE/DL instrument describes its unique characteristics in its
Information screen. In the Start screen, press to select Unit Info, then
press . The Unit Info screen appears (Figure 1-5).
2
3
Figure 1-5: The Unit Information screen
Screen contents
The lines indicated in Figure 1-7 will contain the following information.
Line 1 - Model number showing, in order, the 3M designation (SE or DL), the
Class/Type (1 or 2) and the filter, if installed (1/1, 1/3 or blank).
Line 2 - Unique serial number assigned when the instrument was
manufactured.
Line 3 – The installed feature’s field lists any extra options (note: these may
be additionally purchased features as displayed above for Curves and STIPA.)
NOTE: It’s a good idea to record Information screen data in the event that
you need assistance and the instrument refuses to power up. For 3M
assistance, see “Contacting 3M” on page 149.
\UNIT INFO
SoundPro DL-1-1/3
Serial # BIF120010
Revision B 12M
Installed Features:
CURVES
STI-PA
9 Detection Management Software DMS
Models SE and DL
Navigational
DMS Start Page
Detection Management Software DMS
3M™ Detection Management Software DMS is used to record, report, chart and analyze data
collected for assessment of select occupational health hazards in the workplace. Designed for
dosimetry, sound level measurements, heat stress assessments and environmental
monitoring, the software helps safety and occupational professionals:
• Retrieve, download, share and save instrument data
• Generate insightful charts and reports
• Export and share recorded data
• Perform “What If” analysis and recalculate data based on selected time intervals
• Set up instruments and check for firmware updates
Some data can only be displayed in DMS. One example is logging data obtained when
logging is enabled in an instrument equipped with that option (“Logging” on page 33). Another
example is with the GPS function. When enabled the data is viewable in DMS.
DMS Start Page
buttons
(1) Setup
(2) Download
(3) Data Finder (look
at your session
data or use Quick
Report feature)
10 Detection Management Software DMS
Models SE and DL
DMS Start Page
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11 Checking the equipment
Models SE and DL
SoundPro
Preamp
Windscreen
Microphone
USB cable
QSP- II software
4-AA alkaline batteries
DMS Start Page
Getting Started
This chapter provides the basic information you need to “get up and go”
essentially right out of the box, including getting your first glimpses of SPL.
Checking the equipment
If your instrument was sent to you in a storage case, you will want to remove
all the packaging and acquaint yourself with the equipment, so you can
quickly get started. The items below are included in a “standar d” SoundPro
SE or DL kit.
• Optional feature
CHAPTER
2
• Optional 1”, ½”, and ¼”
microphones available
Figure 2-1: Identify SoundPro equipment
12 Microphone and accessories
Models SE and DL
Twist preamp
Installing the preamp
Installing the preamp
The preamplifier is detachable for storage purposes or if you wish to connect
an extension cable for distance monitoring.
Connecting to the instrument
Place the preamp connector
over the mating connector at the
top of the instrument. Gently
press down while rotating the
preamp until the preamp
connector drops slightly in
place.
1. While pressing the connector together to engage the threads, rotate
the black knob clockwise to secure the preamp to the instrument. It
will fit snuggly.
Connecting an extension cable
Extension cables are available from 3M as options and are typically used
to distance the instrument body from the microphone to reduce distorting
reflections from the instrument’s case.
1. Attach the cable to the base as if it were the preamp and then follow
the steps above “Connecting to the instrument”. Attach the preamp to
the other end of the cable.
locking ring onto
SoundPro
Figure 2-2: SoundPro & Preamp
Microphone and accessories
The instrument is ordered either for Class/Type 1 or Class/Type 2 use. See
“Distinctions between models” on page 1 for information about this classification. The microphones are treated differently for the two classes of instruments.
13 Microphone and accessories
Models SE and DL
Yes
No
Class/Type 1 and Class/Type 2 instrument
Class/Type 1 and Class/Type 2 instrument
The SoundPro is shipped with the Type 1 in a protective case with a serial number
labeled on the side of the microphone. Similarly, the SoundPro with the Class/Type 2
microphone is also shipped in a protective ca se. To attach and remove the
microphone, please follow one of the types below:
• BK4936 microphone - Remove the microphone from its case and thread it on the
SoundPro SE/DL preamp in accordance with the instructions provided in the
microphone case. Note that the BK4936 microphone is provided with a Random
Incidence Corrector (RIC). Use the same microphone instructions for information
about using and installing that device.
• All other Class/Type 1 microphones - Remove the microphone from its
protective case and thread it on the preamp. Before using, be sure to remove the
plastic cap and save it in the case for future use.
• Class/Type 2 microphones – Remove the
microphone from its protective case and thread it on
the preamp. Before using, be sure to remove plastic
cap and save it in the case for future use.
NOTE: to properly remove the microphone, please
adhere to the caution sticker located on the backside of
the instrument and the drawing to the right.
Windscreen
Use a windscreen that fits the tip of the microphone to reduce sound disturbances
caused by physical contact and wind turbulence. 3M provides the WS-7
windscreen that fits a ½-inch microphone with every instrument kit. If you didn’t
order a ½-inch microphone, or if you have one of different size, you may wish to
order a windscreen for the other size.
Figure 2-3: SoundPro with microphone an d windscr een
14 Providing power
Models SE and DL
Installing Batteries
Providing power
You can power the instrument with internal batteries or from an external power
source. There are two optional sources which include a universal power supply
9V/.66A 2.1 mm and an auto DC jack cable 12V. (See Optional Parts, in Appendix
A for more details.)
Installing Batteries
The instrument requires four AA-sized batteries. Disposable alkaline batteries
are satisfactory, but you may also use rechargeable Nickel Metal Hydride
(NiMH) batteries.
•
Rechargeable batteries ~ The instrument does not contain a recharging
circuit. Recharge batteries externally using the recharging device
available from 3M or a compatible device available elsewhere.
• Selecting batteries ~ Do not mix battery types or b atteries with
significantly different charge levels.
NOTE: To avoid possible battery leakage, remove the batteries when the
meter is not in use for prolonged periods.
To install batteries
1. With the back of the instrument facing up, push the release latch to pop
open the battery lid (Figure 2-1).
Figure 2-4: Installing batteries
2. Lift off the lid and set aside. Wedge out the four batteries.
3. Replace the batteries with fresh batteries, taking care that you orient all
batteries with the positive ends toward the base, as shown in the drawing.
4. Re-insert the lid by fitting its locator pins into slots in the base end of the
battery compartment. The lid should fit snugly when correctly inserted.
15 Providing power
Models SE and DL
Battery indicator
Externally powered
Battery power explained
5. Press the top edge of the lid to snap it into the latch.
6. Verify or set the type in the Battery Check screen. (See the next section
“Checking battery power”.)
Battery power explained
The battery check screen is used to determine the battery/power status of the
instrument. When operating on batteries, the grey area in each cell graphic
indicates the charge on each cell (Figure 2-5).
When operating on an external power source (see next section, “external
power sources”), the external power will take precedence over batteries if
installed.
If all bars appear up
to starting line, this
indicates full battery
power
If using an external
power source, EXT
will appear and all
batteries will be fully
shaded indicating full
power capacity.
Checking or changing type
Figure 2-5: Battery check screen
The battery type selection in this display affects the accuracy of the
Battery Indicator that appears in many SoundPro SE/DL displays.
NOTE: It is recommended to match the battery type to the type
of batteries installed in the instrument, or you may experience
an unexpected shutdown.
16 Providing power
Models SE and DL
Setup
Softkey buttons
A: Press sof tkey
B : Press sof tkey
to select NiMH
Checking or changing type
Battery Check screen
1. Turn on the SoundPro SE/DL by pressing On/Off/ESC . You will be at
2. Press Up/Down arrows to highlight Setup and then press Enter .
3. In the Setup screen, select Battery, then press Enter . The Battery
the start screen.
• If turned on, ensure you are at the start screen by pressing On/Off/Esc
repeatedly until the start screen appears.
Figure 2-6: Selecting Setup in the Start Screen
Check screen appears.
to select Alkal ine
Figure 2-7: Selecting battery type in battery check screen
4. Press the softkey that corresponds with the installed battery type (See “A” or
“B” in Figure 2-7 for selection). The label above the softkey is underlined to
indicate the current selection.
5. When completed, press On/Off/Esc once to return to the Setup
and twice to return to the start screen.
screen
17 Providing power
Models SE and DL
B. Slide plug adapter into the crevices of base
A. Universal power supply 9V
Universal
Auto
adapter
Power Jack
Using power supply or auto adapter
Using power supply or auto adapter
If you obtained the optional Universal power supply
9V cable or the Auto DC Jack 12 VDC adapter from
3M, plug them into their respective power sources
and the other end into the Power jack of the
instrument. If the external power source provides
the correct voltage (8-16 VDC) and sufficient
current (300 mA minimum), it will be used in
place of the batteries if they’re installed in the
instrument.
Figure 2-8 illustrates the assembly of the Universal power supply and the plug
adapter. It slides into place by guiding it down the back cavity (opening) of the
power supply.
- NOTE: the example is a typical adapter which may be different than the one
you are using. Mechanically, it will function similarly.
Figure 2-8: Attaching the charger adapter with the plug adapter
power
supply
Connecting power supply source
1. Ensure the power supply is assembled (for universal power supply only).
2. Plug the power cord into the power jack by opening the base cover. Attach the
opposite end into the power supply (i.e., outlet/automobile jack) (as discussed
in “Hardware interfaces”, page 6.)
Figure 2-9: Base (or bottom) of SoundPro
Plug the opposite end into the power supply.
3.
18 Turning on
Models SE and DL
1. Display
8. Softkeys
12. ON/Off and ESC
2. Backlight
9. AltF
6. Run/Pause
Indicators
<SLM> CAL FILE COMM
5. Up/Down arrows
7. “Softkey” Menu:
3. Stop
11. Right arrow
4. Left
10. Enter
Start screen and the keypad
Turning on
1. To turn on the SoundPro, press the On/Off/Esc key until the start
screen appears.
Start screen and the keypad
The Start screen is the first screen you see when you power on and the last
screen you see when you shut down. This essential main screen is also used
to navigate through the menu options.
The keypad and softkeys are used to setup the instrument, run a study, stop
a study, view your measurement values, and power on and off the meter.
• Battery power:
• Stop:
• Run time:
00:00:00
Figure 2-10: SoundPro SE/DL start screen and keypad
Correspond with softkeys
19 SoundPro functionality
Models SE and DL
Keypad
Explanation
1. Display
Used to view data, menus, and various
2. Backlight
Used to illuminate the background of the
3. Stop
Used to stop your study when in the Run or
4. Left arrow
Used to navigate left through menus and/or data.
5. Up/Down Arrows
Used to navigate through menus and/or data.
6. Run/Pause
Used to Run or Pause a study. (A run or pause
7. Softkey menu
The softkey menu are additional menu options for
8. Softkeys
The Softkey buttons correspond with the softkey
9. Altf
The Altf button (or Alternate functions) is used to
10. Enter
Used frequently to execute an action. Typically
11. Right arrow
Used to navigate right through menus and/or
12. On/Off and ESC
Used to turn on the SoundPro, turn off, and to
The keypad explained
SoundPro functionality
The keypad explained
The SoundPro SE/DL keypad consists of three general types of keys: softkeys, navigation keys and dedicated keys.
indicators.
display/screen. (i.e., nighttime study.)
Pause modes. A 3,2,1 countdown will appear as
you continue to press the stop button.
Table 2-1: Keypad Explained
indicator will appear at the top of the screen to
signal you of the appropriate mode.)
setting measurement type (i.e, SLM, 1/1, etc.),
Calibrating, Loading a study file, setting
Lock/secure settings, and many more options.
menu. (Please see Figure 2-10 above).
expand the softkey menu at times.
used after you have first pressed one or more
arrow keys to make a selection.
data.
Escape (or move back one screen).
20 SoundPro functionality
Models SE and DL
Icon
Significance
• or the SoundPro is fully charged.
UR
OL
Indicators explained
Indicators explained
Status information is provided by the instrument at the top of the display.
Below is a summary of all of the indicators.
Battery charge status. This icon shows the status/level of the
batteries. A full battery indicates one of the following:
• externally powered
Run state. This icon appears when a study is running.
Paused state. This icon appears when the current session is
open but paused.
Stop state. This icon appears when the current session is
stopped.
Review mode. When the pause and stop icons appear, this
indicates that you are viewing a saved file.
Overload condition. When an overload occurs during a study,
this indicator appears and remains lit until the beginning of the
next study.
Underrange condition. When an underrange condition occurs
during a study, this indicator appears and remains lit until the
beginning of the next study.
Alternate functions. This icon appears below the Battery
Charge Indicator when alternate functions are being displayed.
Table 2-2: Screen Indicat ors
21 Turning off
Models SE and DL
Navigating
Navigating
To navigate to menus and data screens, the up/down
arrows and left/right arrows are primaril y used.
The On/Off Esc button is also used as a navigational
tool at any time you wish to move back one level. If you
press ESC repeatedly, you will return to the start screen.
Turning off
1. To turn off the SoundPro, ensure the meter is stopped (i.e., indicator
will display on the top of the screen).
2. Press and hold the On/Off/ESC button until the start screen
disappears.
22 Turning off
Models SE and DL
Navigating
Thi s page left blank intentionally
23 Basic setups
Models SE and DL
Signal Input
BK4936
QE7052
QE4110
QE4130
QE4150
QE4170
Sensitivity a
-28.0
-29.0
-49.1
-36.0
-26.0
-28.0
Range Cap (dB)
140
140
160
140
140
140
Polarization (V)
0 0 200
200
200
200
Navigating
Basic setups
This chapter covers the basic features and setups of SoundPro SE/DL that
establish the instrument’s operating conditions. For information about the
more advanced SoundPro SE/DL features and their setups, see Chapter 4,
“Advanced setups.” For infor mation on setting-up and measuring add-on
features (Reverberation, STI-PA, or Curves), please see Chapter 6.
• Microphone Settings
• Setting Date-Time
• Setting Measurement type (SLM, 1/1, 1/3, STI-PA)
• Setting up Meter 1/Meter 2 parameters
• Setting up Exceedance le v els
• Setting up Logging
• Setting physical settings: backlight “on” time, contrast, choosing a
CHAPTER
3
language
• Microphone settings
With Class/Type 1 models, the microphone’s sensitivity, range cap, and
polarization can be checked and/or changed in the “Signal Input” menu
(when stopped). Alternatively, Class/Type 2 models settings are viewable at
any time the session is stopped but cannot be modified.
The following table displays the required microphone settings.
Table 3-1: Required microphone settings
24 Basic setups
Models SE and DL
A. Sensitivity
B. Range Cap
C. Polarization
Menu path displayed
Changing microphone settings
Changing microphone settings
Microphone settings
This procedure applies only to Class/Type 1 models.
1. Turn on the SoundPro SE/DL by pressing On/Off/Esc .
• If turned on, ensure you are at the start screen by pressing
On/Off/Esc repeatedly until you return to start screen (see Figure
2-10).
2. Press Up/Down arrows to highlight Setup and then press
Enter .
3. In the Setup screen, select Sig. Input, then press Enter . The Signal
Input screen appears.
Figure 3-1: Microphone Settings (Signal Input screen)
. Signal Input options are explained below (refer to Figure 3-1 above).
4
A. Sensitivity ~ Calibration parameter for the selected microphone. This is
a nominal value in decibels relevant to 1V/Pa.
B. Range Cap ~ Top of the measurement range for the microphone/
instrument combination. In any screen showing a decibel range, this
setting affects the maximum value.
C. Polarization ~ A value of the polarization voltage for the microphone.
Some microphones have an internal polarization, while others require a
polarization provided by the instrument.
5. To change a signal input field, press Up/Down arrows to highlight
specific field (s).
25 Basic setups
Models SE and DL
a. Time
b. Date
c. Day
Time and date
6. Press Enter . The result will be one of the following:
7. Once desired fields are changed, press On/Off/ Esc twice to return to
Time and date
SoundPro SE/DL uses a 24-hour clock and specifies date by month and year.
Changing time and date settings
1. Turn on the SoundPro SE/DL by pressing On/Off/Esc .
• If turned on, ensure you are at the start screen by pressing On/Off/esc
2. Press Up/Down to highlight Setup and then press Enter .
3. In the Setup screen, select Time-Date, then press Enter .
4. In the Time-Date screen, press to select either the Time, Date, Day
• For Sensitivity and Range Cap fields - The highlighting moves to the
data field. Press Up/Down arrows to change the value.
• Polarization field - Polarization remains highlighted. Continue to press
Enter to change (or toggle) the value from 0 V to 200 V.
the Start screen.
repeatedly until you return to start screen (see Figure 2-10).
fields. Then do one of the following:
a. For Time field, press Enter repeatedly to highlight either the hour,
minutes, or seconds. Next, press Up/Down to change the value.
b. For Date field, press Enter repeatedly to highlight either day, month,
or year. Next, press Up/Down to change the value.
c. For Day field, press Enter repeatedly to highlight either day, month,
or year. Next, press Up/Down to change the value.
Figure 3-2: Time and Date Settings
26 Basic setups
Models SE and DL
1st softkey
Softkey menu
Measurement type (SLM, 1/1, 1/3, STI-PA, RT60)
NOTE: To move to between the time, day, day fields, press Enter repeatedly
5. If yo u’r e finished working in the Time-Date screen, press On/Off/Esc
Measurement type (SLM, 1/1, 1/3, STI-PA, RT60)
The measurement type is easily selectable at the start screen via a softkey
button. This is assessable at all times unless you are running a study. To
change or set the measurement type, ensure the SoundPro is stopped as
indicated by the stop icon. Depending on the options you order ed with
your SoundPro it may or may not have all the measurement types indicated
above. NOTE: For STI-PA and RT60, please see Chapter 6, “Additional
Options”.
Setting Measurement type
1. Turn on the SoundPro SE/DL by pressing On/Off/Esc .
until one of these fields are highlighted and then press Up/Down arrow to move
between the fields.
once to return to the Setup screen and twice to return to the Start screen.
• If turned on and you are not at the start screen, press On/Off/Esc
repeatedly until the start screen appears (see Figure 3-3).
2. At the start screen, select the first softkey button repeatedly until the
appropriate measurement type is selected.
• You may have the following selectable options: Sound level meter (SLM), 1/1
octave, 1/3 octave, and/or STI-PA (Speech Transmission Index).
Measurement type
(Sound Level Meter)
Repeatedly press to
move (toggle) through
measurement types
Figure 3-3: Measurement type and start screen
27 Basic setups
Models SE and DL
Meter Set fields
Parameters
2ND softkey– Response ti m e
Meter 1/Meter 2 Parameters (i.e. response time, weighting)
Meter 1/Meter 2 Parameters (i.e. response time,
weighting)
Setting up Meter 1 and Meter 2 parameter settings are changed through the
softkeys and the Measure Set screen of the SoundPro.
Setting up Meter 1 and/or Meter 2 parameters
1. Ensure you are at the start screen.
• If turned on, press On/Off/Esc repeatedly until you return to the
start screen (see Figure 3-3).
2. Press Up/Down to highlight Setup and then press Enter .
3. Select Meter Set by pressing Up/Down to highlight and then press
Enter .
4. To set the response time for Meter 1, press the second softkey repeatedly
until the either Fast (F), Slow (S), or Impulse (I) is selected.
• An underline denotes which feature is selected.
5. To set the weighting for Meter 1, press the third softkey repeatedly until
either A, C, Z, of F is underlined (or selected).
• To set Meter 2 response time and weighting, press 4
th
softkey until
Meter 2 is selected. Then repeat steps 4 & 5.
6. To change the Meter parameters, press Up/Down to select one of
the Meter Set fields.
7. To change any of the values, press Enter to move to the data fields.
• Continue to press Enter until the specified setting is selected. Press
the Left arrow to return to the Meter Set fields.
Press Enter
repeatedly to
toggle through the
Press up/down
arrows to move
between the
parameters
selections
3RD softkey– Weighting
4th softkey– Meter 1/Meter 2
Figure 3-4: Meter 1 and Meter 2 parameters
28 Basic setups
Models SE and DL
1
2
Data fields
selections.
Measurements
Measurement setup (for community noise)
Measurement setup (for community noise)
• L1-L4
• LDN, CNEL
• Lc-a, TAKTMX
NOTE: For quick and easy access, there are three optional screens to change
the timed response and the weighting. These are in the following SoundPro
screens: Measures Set screen, View Current Study screen, and View Session
study screen.
The measure screen is used to select community noise settings for meter 1
only. Table 3-2 below explains the settings and options.
Setting up community noise measurements (refer to figure 3-5 below)
1. Ensure you are at the start screen.
• If turned on, repeatedly press On/Off/Esc until you return to the
start screen (see Figure 3-3).
2. Press Up/Down to highlight Setup and then press Enter .
3. Select Measures from the Setup screen by pressing Up/Down to
highlight and then press Enter .
4. In the Measures screen, press Up/Down to select one of the
measurements. To select second column, first press Up/Down arrows then
press Right arrow.
• Edit column 1 or column 2
fields by pressing enter
repeatedly to toggle through
Figure 3-5: Measures screen for community noise settings
5. To make changes to the data fields, do one of the following:
• L1-L4 - Press Enter to move to the data field. In the data field,
repeatedly press Enter to change your selection.
• Press arrows to change percentage.
• LDN - Press Enter to move to data field and continue to press
Enter to toggle between On/Off setting.
29 Basic setups
Models SE and DL
Measurements
Explanation
L1-L4
L1-L4 are types of exceedance levels. T his is defined as the
many time fractions (or percentages).
• Optional Settings: Set to “Off” or to a percentage value of
your choice (1-99%).
LDN
Representing the Day/Night sound level, this measurement is
glossary of terms for more details).
• Optional Settings: Set to “Off” or “On”.
CNEL
Community Noise Exposure Level. The accumulated exposure
boosted during certain hours.
Optional Settings: Set to “Off” or “On”.
L
This measurement (also commonly called C-A measurement) is
parameter settings.
TAKTMX
A time average over a sampling that uses the highest level
Measurement setup (for community noise)
• CNEL – Press Enter to select data field. Press Enter
repeatedly to toggle between On/Off setting.
• L
– Press Enter to select data field. If marked “N/A,” see “C-
c-a
A measurement settings.”
• TAKTMX ~ Press Enter one or more times to select 3 sec., 5
sec., or Off.
6. To change other measurement settings, repeat steps 4-5.
7. When finished, press On/Off/Esc to exit the screen.
The following table explains your selections in the Measures screen
(Please see Appendix B, Glossary of Terms for more details.)
(Exceedance)
c-a
level exceeded by the measured noise level for an identified
fraction of time. Exceedance levels may be calculated for
24-hour average sound level where 10 dB is added to all of the
readings that occur between 10pm to 7am. (Please see
to sound measured in 24-hour sampling interval and artific i al l y
only available under certain conditions. Information about
viewing and changing these meter settings is discussed under
the next section, “C-A measurement settings”. Optional
Settings: Set to “On” and “Off”. See C-A section below for
Table 3-2: Measures screen explained
occurring during the preceding Taktmaximal interval (either
three or five seconds), and assumes it was present for the
whole Taktmx interval.
Optional Settings: Set to “Off”, “3sec”, or “5sec”
30 Basic setups
Models SE and DL
Meter 1
Slow response
A-weighting
Slow response
C-weighting
Meter 2
Measurement setup (for community noise)
C-A measurement settings
The C-A measurement is determined from concurrent measurements of the
SPL by both meters. It can only be made if certain settings for Meter 1 and
Meter 2 are compatible. If any incompatibility exists, the L
selection in this
c-a
screen will be marked N/A (Not Available).
If you want to activate L
, have the following settings in place before you
c-a
visit the Measures screen.
• Thresholds - Both meters set to “Off” or the same value.
• Exchange rates- Both meters set to the same value.
• Time response - Both meters set to the same value.
• Frequency weightings- Meter 1 must be set to A-weighting; Meter 2
must be set to C-weighting.
Figure 3-6 is an example of the appropriate C-A settings for Meter 1 (left
side) and Meter 2 (right side). (Please see “Meter 1/Meter 2 Parameters” on
page 27 for setup details.)
• Press softkey to
toggle between
Meter 1/Meter 2
Figure 3-6: C-A measurement settings for Meter 1 and Meter 2
31 Logging
Models SE and DL
Logging options
Logging
Logging options
If the logging option was
purchased, you will have the
following four types of
measurement options:
• Average (AVG on the displa y), Peak, Maximum (MAX on the display),
Minimum (MIN on the display).
NOTE: When logging is enabled and you are viewing these
measurements on the SoundPro display, these are labeled as: L_avg (or
L_eq if the exchange rate is set to 3 dB), L_Pk, L_Mx and L_Mn,
respectively (See Chapt er 5, “Preparing to measure and running”.)
Figure 3-7: Logged Data Chart example
Exceedance level
Up to two different exceedance level percentages, ranging from 1-99, can be
set in the Meter 1 Logging screen when the logging interval is set to 1
minute.
NOTE: if the logging interval field is not set to 1 minute, “N/A” (not
available) will appear in the data field.
Filters
The filter option is either a “On” or “Off” setting in Meter 1 and is only
available if the instrument contains a filter option. NOTE: The filter option
must be set to “on” to data log filtered data.
Logging interval
The logging interval is the length of time between logging events.
NOTE: The inverse of the logging interval is the logging rate.
32 Logging
Models SE and DL
Exceedance options
Filters
Logging Interval
Logging options
Softkey: Meter 1/Meter 2
Setting logging options
Setting logging options
To set logging only options (Average, Peak, Maximum, Minimum)
Enabling or disabling logging options
1. Ensure you are at the start screen.
• If turned on, repeatedly press On/Off/Esc until you return to the
start screen (see Figure 3-3 above).
• To turn on, press and hold On/Off/Esc until the start screen
appears.
On/Off setting
• AVG (average)
• Peak
• MAX (maximum)
• MIN (minimum)
2. Press Up/Down to highlight Setup and then press Enter .
3. Select Logging by pressing Up/Down to highlight and then press
Enter .
4. To change the Logging options for Meter 1 do the following:
a. Press Up/Down to highlight either AVG, PEAK, MAX, MIN.
b. Once the measurement is selected, press Enter button to
toggle between “On” or “Off”. Press right/left arrow to move back
to logging field.
NOTE: If you are setting Meter 2 options, ensure you are on Meter 2 by
pressing the Meter 1/Meter 2 softkey, and then repeat step 4a-b.
Set % by using the up/down
arrows.
• L1
• L5
• On/Off setting
• Logging rate which can
be set at various
minutes and second
values
Figure 3-8: Logging screen explained
5. To change the Exceedance Levels on Meter 1, press Up/Down to
select either L1 or L2
33 Setting up display options
Models SE and DL
Setting logging options
6. Press Enter to move to the data field. If it is Off and you want to set a
percentage, press Enter repeatedly until a percent age app ears . To
disable, repeatedly press Enter until “Off” appears.
a. To change the percentage, repeatedl y press Up/Down to
select a specific percentage.
b. Press right/left arrow to move back to Exceedance level field.
7. To change the Filters option, press Up/Down to highlight
“Filters” and then press Enter to toggle between “On” or “Off”.
8. To change the Logging Interval, press Up/Down to select
“Interval”.
a. Press Enter to move to the data field (i.e., 1 minute). To
change the value, repeatedly press Up/Down until the
appropriate minutes or seconds are displayed.
b. Press right/left arrow to move back to interval field.
9. To return to the Start screen, repeatedly press On/Off/Esc button.
Setting up display options
The display’s backlighting, contrast and language characteristics can be
customized to suit your needs and preferences. These settings are available
in the Display screen (Figure 3-9).
Figure 3-9: Display setup screen
34 Setting up display options
Models SE and DL
LANGUAGE
*ENGLISH
Language
Language
You can choose a different language for the displayed text. A change in language takes effect when you exit the Language screen.
Changing the language
1. Ensure you are at the start screen.
• If turned on, repeatedly press On/Off/ESC until you return to the
start screen (see Figure 3-3 above).
• To turn on, press and hold On/Off/ESC until the start screen
appears.
2. Press Up/Down to highlight Setup and then press Enter .
3. Select Display by pressing Up/Down to highlight and then press
Enter .
4. In the Display screen, ensure Language is highlighted (or press up/down
arrow to select) and press Enter .
• The Language screen appears. An asterisk (*) precedes the name of
the currently selected language.
5. Press Up/Down to select a language (an asterisk will appear if
selected) and then press Enter .
6. Press On/Off/ESC twice to return to the start screen. The new
language will be displayed.
\setup\display\
*ENGLISH ITALIANO
FRAN
ESPAÑOL
PORTUGUESE
çAIS DEUTSCH
Figure 3-10: Language screen
35 Setting up display options
Models SE and DL
LANGUAGE
CONTRAST
BACKLIGHT
Backlight
Backlight settings
Backlight
Backlight
Typically, the SoundPro is shipped with the
backlight setting enabled. With a quick press of
the backlight button from the keypad, you can
quickly turn on and turn off the backlight.
The backlight feature has an optional timed
setting for various second intervals ranging from
1 second to 60 seconds. Once a timed setting is
activated and you press the backlight button, the
backlight will illuminate for the selected interval (i.e., 10 seconds) and then turn
off.
NOTE: Backlighting consumes energy at an increased rate. Leaving it on
while operating with batteries will decrease battery life by up to 10%.
Setting or viewing Backlight options
1. From the start screen, press Up/Down to highlig ht Setup and
press Enter .
2. In the Setup screen, press Up/Down to high lig ht Display and
press Enter .
3. In the Display screen, press Up/Down to highlight Backlight.
4. Press Enter to move to the data field. Repeatedly press Enter to
toggle between “Manual” and “XX Sec” fields.
NOTE: if you are not setting the timed backlight, skip step four.
5. To change the timed backlight, ensure you are on a timed value (i.e., 10
seconds) and repeatedly press Up/Down to increase or decrease the
time. Once set, press the Left arrow.
Figure 3-11: Backlight setting
• Manual – The backlight is turned on
and turned off by pressing the
backlight button on the keypad.
• Interval time – repeatedly press
Up/Down arrow to increase or
decrease the seconds.
6. Press On/Off/ESC twice to return to the start screen.
36 Setting up display options
Models SE and DL
LANGUAGE
BACKLIGHT
CONTRAST
Contrast setting
contrast.
Contrast
7. To set the backlight, press the backlight button on the keypad.
Contrast
The contrast adjustment affects all pixels in the LCD screen. Choose a level
that looks best to you.
NOTE: If the contrast level is set too high, icons and the RunTime clock in
the Status Region of the display can be ghosted (visible in this display
although they’re not supposed to show). Reduce setting to avoid ghosting.
Changing the contrast on the display
1. From the start screen, press Up/Down to highl ig ht Setup and
press Enter .
2. In the Setup screen, press Up/Down to high lig ht Display and
press Enter .
3. Press Up/Down to highlight Contrast and then press Enter .
4. Repeatedly press the left or right arrow to decrease or increase the
contrast.
NOTE: The contrast will change as you change the contrast color with
the left or right arrows.
5. To exit the display screen, press the On/Off/Esc twice to return to the
Start screen.
Figure 3-12: Contrast setting
Press Left arrow or Right
arrow repeatedly to
decrease or increase the
37
Models SE and DL
Advanced setups
This chapter covers the SoundPro models SE and DL features listed below,
all of which provide capabilities beyond the essential ones required for basic
model setup and basic sound measurement. For information about basic
SoundPro models SE and DL features and setups, see
setups.”
are used in these explanations, see Chapter 1, “Introduction.”
• Auto-Run - Similar to an “Auto-Start” feature, it will automatically start
• Triggering - Control the runtimes of studies and sessions using internal
• Security - Prevent certain uses of the instrument by someone who
For information about the notation and navigation conventions that
and stop sessions based on time, date, duration settings and le veltriggered run mode (which is used to control runtimes of studies and
sessions using internal and external signals.)
and external signals.
doesn’t know the security codes (available for all instruments).
CHAPTER
4
Chapter 3, “Basic
• Logging - Periodically save selected measurements at a preset interval
during all studies of a session (only for DL models).
• GPS - Obtain position and time information from the global positioning
satellite system, and store that information with each study that you
perform (only available if you have a compatible GPS receiver).
38 Auto-Run
Models SE and DL
Date setting
View/Set Parameters – when
Date setting
Auto-Run
SoundPro SE/DL has four automatic run modes which include: Date autostart with duration, Day of the Week auto-start with duration, Timed Run
(duration only setting), and Level Triggered Runs (or Level auto-start runs).
Setting up auto-run
All Auto-Run setups begin in the Auto-Run screen. The Auto-Run screen
shows the current status of the Auto-Run feature. The following features are
available: Disabled, Timed Run, DOW (day of week), Date, and LevelTriggered settings.
Date setting
A Date mode run wakes up the instrument from a powered down condition,
runs the study, saves it, then powers down again and is only executable
once. The parameters are selectable by specified dates and times with up to
four programmable individual setups.
A plus sign preceding a number (i.e., +1) indicates if one of the four settings
is enabled (or activated) where as a negative sign (i.e. -4) represents a
disabled (or deactivated) setting.
Setting up or changing auto-run with date parameter
1. From the start screen, press Up/Down to highlight Setup and press
Enter .
2. Select Auto-Run by using Up/Down to highlight and pres s Enter
to select.
3. In the Auto-Run screen, repeated l y press Enter until Date appears.
selected a new menu appears
Figure 4-1: Auto-Run with Date selected
4. To select View/Set Pa r amet er s, press the Down arrow to highlight and
press Enter .
39 Setting up auto-run
Models SE and DL
Date Settings
Time settings
Example: Press first
run #1” settings
Auto-Run #1
or set
Date setting
5. Press one of the four softkeys in the Auto-Run Date screen to assign a
numbered setting (i.e., “Auto-Run #1).
NOTE: if setting up for the first time, the Date screen will appear as
“Auto-Run” “Off”. To turn on Auto-Run # 1, #2, #3, or #4, select the
appropriate softkey. (For example, Figure 4-3 displays setting up
softkey #1 parameters. When activated a “+” symbol appears.)
6. To set Date values, press Enter to move to the first field.
• To change the fields, press repeatedly Up/Down . To move
softkey to activate “Auto-
between the day, month, and year fields, press the right/left arrows.
Indicates which 1-4
softkeys is being viewed
Day, Month, Year fields
Add Start time (S) (8:15:00am)
Add Duration (D)
(16 hr, 30min, 0 sec.) (or 6:30:00pm)
Figure 4-2: Setting Date parameters for Auto-Run #1
7. To enter Start (S) Time and Duration (D) Time, it is important to note that
the settings are formatted as Hours:Minutes:Seconds and based on a
24-hour clock. In Figure 4-3, the Start time is indicated as “16:30:00”
which is equivalent to 4:30pm.
• To Set, press Up/Down arrows to increase/decrease values. To
move between each increment, pres s Enter .
8. To set additional Auto-Runs, repeatedly press Enter until “Auto-Run” is
highlighted. Then press Enter to toggle on the Date and Time
settings. Then follow steps 5-7.
9. To exit the screen, press On/Off/Esc repeatedly until you return to
the main screen. Press and hold the On/Off/Esc to power off.
40 Setting up auto-run
Models SE and DL
Days of Week (Auto-Run) setting
Days of week setting
NOTE: To enable Auto-run, ensure the instrument is powered off and
the date and time settings were programmed for the future.
10. When powered off, an Auto-Run shutdown screen will appear. (Please
see section, “Auto-Run shutdown screen”.)
Days of week setting
The Days of the Week (DOW) setting is a pre-programmed weekly auto-run with
specified days, start time, duration. You can pre-program two auto-on settings
with Sunday through Saturday parameters, one specific start time, and a
specified duration for each auto-on setting. (See Figure 4-4 as an example for
settings.)
NOTE: In order for the Days of the Week mode to autorun, ensure the
instrument is in the “off” position. The meter will then automatically switch into
Auto-Run based on your setup.
To program Auto-On 1, first select
the days of the week, then specify a
start time for your test with a
duration (to end your test).
A study run under the DOW mode wakes up the instrument from a powered
down condition, runs the study, saves it, then powers the instrument down
again. The cycle repeats for the next time and day in the setup, and for the
other Auto-on 2 if that is also activated in the mode.
Setting the Date of Week (DOW)
1. From the start screen, press Up/Down to highlight Setup and
2. Select Auto-Run by using Up/Down to highlight and press Enter
3. In the Auto-Run screen, repeatedly press Enter until DOW appears.
4. Press the Down arrow to select View/Set Parameters and press
Enter .
Figure 4-3: Example of setting up Auto-Run (QSP-II)
press Enter .
to select.
41 Setting up auto-run
Models SE and DL
Days field
Start time and duration
Start time and duration
Days of week setting
5. To set the Days, pres s Enter to move between the fields. To
program a day, press Up/Down to select a day setting. The first
character of the day will appear when selected.
• The Days field is organized in the following sequence: Sunday (S),
• For example, Figure 4-5 displays Sunday (S), Tuesday (T), Thursday
6. To set Start time (S) and Duration (D) for Auto-Run #1, press Enter
repeatedly to move to Time line #1. Press Up/Down arrows to change
the time and duration values. Press Enter to toggle through the
fields or press left/right arrows.
7. (Skip this step if not setting auto-run #2.) To set auto-run #2, press
softkey #2 until the screen displays a plus symbol in front of “2”. (This
denotes it is “activated”.) Then repeat steps 5 – 6.
8. To exit the screen, press On/Off/Esc repeatedly until you return to the
main screen. Press and hold the On/Off/Esc to power off.
Auto-run #2 is
programmed to run
Monday –Thursday and
Saturday
Auto-run #1 is
programmed to run at
10:00am (“S”) for a
duration (D) of 2 hours
Monday (M), Tuesday (T), Wednesday (W), Thursday (T), Friday (F),
Saturday (S).
(T), and Saturday (S) selected as pre-programmed run days.
Auto-run #2 is
programmed to run at
2:00pm (“S”) for a duration
(D) of 2 hours
Figure 4-4: Day of the Week (DOW) setup
9. When powered off, an Auto-run shutdown screen will appear. (Please
see section, “Auto-Run shutdown screen”.)
42 Setting up auto-run
Models SE and DL
Auto-Run (AR) #1 settings
•
•
second line
Auto-Run (AR) #2 settings
Displays the # of
Mode
•
Auto-run shutdow n screen
Auto-run shutdown screen
When either the Date mode or the Date of the Week (DOW) settings is
enabled and you power down the instrument, you will be alerted by an AutoRun Shutdown screen just before the instrument turns off. This screen,
illustrated below, appears after the normal power-down countdown and
remains visible for approximately ten seconds.
NOTE: The Auto-Run Shutdown screen never appears when Timed
Run is enabled because that mode requires the instrument to be
powered on.
Date is displayed on first line
Start time (ST) and
runtime(RT) is displayed on
pre-programmed runs.
Auto-run shutdown screen explained
The Auto-Run Shutdown screen is a map of your auto-run settings. It
identifies the mode, the activated setups in that mode (AR) and the order in
which the setups will occur.
If Auto-Run is enabled in the Date mode and more than two setups are
activated, only the first two will be shown because of limited screen space.
If you power on the instrument after the first auto-run has been saved, view
the study, and then power off the SoundPro, it will display the next two
remaining auto-run settings.
NOTE: If the start time and date for a setup is already past, the run will not
be identified in this screen.
Either Date/ DOW
Figure 4-5: Auto-Run Shutdown screen
43 Setting up auto-run
Models SE and DL
Duration
Timed-Run
Timed run setting
Timed run setting
In Timed Run mode, you program the instrument’s duration (or timed run)
and then manually start your study, which can be applied as many times as
you wish. The auto-run will end when the duration expires.
Viewing or changing the Timed Run setup
1. From the start screen, press Up/Down to highlight Setup and
press Enter .
2. Select Auto-Run by using Up/Down to highlight and press
Enter to select.
3. In the Auto-Run screen, repeatedly press Enter until Timed-Run
appears.
4. To set the duration, press Enter to toggle between the Hours,
Minutes, and Seconds field. To change the time values, press
Up/Down repeatedly until the specified value is selected.
5. Press On/Off/Esc repeatedly to return to the start screen. When you
are ready to run your study, press Run/Pause .
Auto-run setting with timed
run selected
Formatted as
Hours:Minutes:Seconds
Figure 4-6: Timed Run setup screen
44 Setting up auto-run
Models SE and DL
Level-
Explanation of Settings
A. Mode
The mode, or Filtered Mode, can be set to Level On/Off and Windowed
Mode: to enable a
Action: Run/Pause
Source/Level:
A
B
C
D
Level-triggered auto-on setting
Level-triggered auto-on setting
The level-triggered screen contains meter 1 parameters which include a
Filter mode, Frequency level, “Level On” and “Level Off” modes, and a
specification for either run/stop or run/pause modes.
Viewing or changing level-triggered mode
1. From the start screen, press Up/Down to highl ig ht Setup and
press Enter .
2. Select Auto-Run by using Up/Down to highlight and press
Enter to select.
3. In the Auto-Run screen, repeatedly press Enter until Level-
Triggered appears.
4. Press the Down arrow to select View/ Set Pa ram eters and press
Enter . The Level-Triggered Auto-Run screen will appear.
• See Table 4-1 below for explanation of settings.
\setup\LVL-TRG-RUN
MODE LEVEL ON/OFF
ACTION RUN/PSE
TRIGGER RUN PAUSE
SOURCE METER 1 METER 2
LEVEL 90.0 OFF
Figure 4-7: Level-Triggered screen
filter mode, select
Level On/Off or
Windowed
or Run/Stop
Select one of the 5
features and then
set an appropriate
Level.
Triggered
settings.
• In Level On/Off mode, the unit starts a run when the source level
exceeds the specified criteria and stops/pauses when level falls below the
off criteria. The on criteria is met and either pause or stop a run when the
off criteria is me t.
• In Windowed mode, the unit starts a run when the selected criteria falls
outside the defined window. This is intended primarily for curves but can
also be used with broadband or individual filter measurements.
45 Setting up auto-run
Models SE and DL
Level-
Explanation of Settings
B. Action
After selecting specific filter mode settings, the instrument is set to trigger
C. Source
The source can be set to Meter 1, Meter 2, filters, curve, external trigger,
D. Level
The level field corresponds with your selection from the Source field and is
Level-triggered auto-on setting
Triggered
based on Run/Pause mode or Run/Stop mode.
timed run trigger mode, and a delay. which are explained below:
• Broadband: When selecting Meter 1 or Meter 2 for the triggering source,
you then specify a specific value in the “level” field such as 85dB.
• Filters: Octave band filters are selectable as a triggering source such as:
12.5Hz, 16Hz, 20Hz through 20KHz. Note: this is only available if they
have purchased the 1/1 or 1/3 features. To select a filter, select a an
octave band value (.i.e. 10KHz) in the source field. Then, select a Level
value (i.e., 90dB).
• Delay: When selecting Delay with a specified time value, it will trigger the
auto-run after the timed-delay surpasses. (This is similar to setting a delay
on a camera.) To select “Delay”, select the Source as “Delay” and for
Level select a specific time value (the range is from 00:01 seconds to
59:00 minutes).
• Curve: If the curves feature has been purchased, you have the option of
selecting one of the 4 captured curves to trigger a run. To select a
captured curve, set the Source as “Curve” and then change the “Level”
field to one of the following: CAP-1, CAP-2, CAP-3, or CAP-4.
• EXT: External Trigger feature is triggered by the digital input on the curve
indicator. To select external trigger, select “EXT” as the source field, and
select “LO” for the level field.
• TIMED: When selected as the RUN trigger, it will cause a delay of
specified direction between the timed RUN button is pressed and the time
the RUN actually starts. When selected as the PAUSE/STOP trigger, it
sets a run length. To select under the Source and Pause fields, chose
Timed. Next, select a timed value (or duration) in the Level field. (This is
formatted as hours:minutes:seconds.)
explained under “C. Source”.
Table 4-1: Level Triggered Auto-On settings explained
5. To select the Mode, press Enter repeatedly unti l you are vie win g
either Level On/Off or Windowed.
6. To move to the next field, press the Down arrow.
7. To set the Action, press Enter repeatedly until you are viewing
either Run/Pause or Run/Stop.
8. To move to the next field press the Down arrow.
9. To change the Source, press the right arrow. To select one of the five
Sources (as explained above in Table 4-1), press Enter repeatedly
until you are viewing the appropriate feature.
46 Locking setup or run mode
Models SE and DL
Setting secure run or secure setup (locking)
10. To activate Triggered Run on the Meter 2, press the right arrow and
select one of the five sources by pressing Enter repeatedly unti l you
are viewing the appropriate feature. (If you are only setting Meter 1,
please skip this step.)
11. To move to the next field press the Down arrow.
12. To select a Level, press the Right arrow. Press Enter repeatedly
until you are viewing the appropriate setting.
13. Press On/Off/Esc repeatedly to return to the start screen. When you
are ready to run your study, press Run/Pause .
Locking setup or run mode
The locking or security feature is designed to lock the SoundPro during a run to
ensure the study will not be stopped unless the lock feature is disabled.
Likewise, this feature includes a locked (or secure) setup mode which will stop a
user from editing a programmed setup. Once setup and enabled, the secure run
or secure setup are unlocked, by pressing the Lock softkey and entering in the
code.
NOTE: Security settings survive a shutdown.
Setting secure run or secure setup (locking)
Run Security and Setup Security are both enabled and disabled in the Lock
screen. For Secure Run, you can be in pause or stop mode when locking.
For Secure Setup, you must be in stop mode to set and enable this feature.
About Secure Run
When you enable Run Mode Securit y and start a run, the Secure Run Mode
screen appears (Figure 4-10). This will prevent users from viewing the
measurements, changing parameters, and/or stopping the run. To stop the
secured run, you will have to press the Lock softkey and enter in the code. Then,
you would be able to stop the run by pressing the Stop key.
NOTE: With Run Mode security enabled, the Secure Run Mode screen
always appears regardless whether the study was started manually, by AutoRun or by Triggered studies.
About Secure Setup
Setup Mode security blocks access to setup screens while in stop mode.
(NOTE: When in run mode, the SoundPro automatically blocks the user from
changing settings to ensure the settings remain the same throughout the
session.) Once enabled and the user selects setup, the Secure Setup mode
prompt will appear and it prevents someone from changing settings until
unlocked.
47 Locking setup or run mode
Models SE and DL
Setting Lock feature:
•
•
Lock:
Setting secure run or secure setup (locking)
Setting secure run or secure setup (locking)
1. From the start screen, press the Lock softkey.
Figure 4-8: Secure/Lock option
2. In the Lock screen, there are two selectable fields:
• Secure Run Mode with a status line
• Secure Setup Mode with a status line.
• Each Status Line is used to specify either a “disabled” state or an
enabled state when a code is entered to assign an unlock code.
Press 4th softkey to
select “Lock” screen
Enable or Disable “Secure Run Mode”
Enable or Disable “Secure Setup Mode”
Figure 4-9: Secure/Lock screen
48 Locking setup or run mode
Models SE and DL
•
To unlock/unsecure
Setting secure run or secure setup (locking)
3. (Skip this step if securing setup and see step 4.) To set Secure Run
Mode, press Enter and “0000” will appear.
NOTE: if you want to set the code as “0000,” press Enter
repeatedly until “enabled” appears. This will be the unlock code.
Figure 4-10: Adding code for secure/lock screen
• To select a numeric code, press Up/Down arrows to select a
number, press Enter to toggle between the fields.
• Press Enter to Enable.
• Press On/Off/Esc key to return to the Start screen. When you are
ready to run a session, press the Run/Pause key and the Secure
Run Mode prompt will appear. (See “Disabling secure run or secure
setup” below for details on stopping the run.)
Figure 4-11: Secure/lock run prompt
Selected value is shaded
• E nter code by pressing up/down
arrows to change value
• P ress enter to move to each field
Press lock softkey and
then enter in code.
49 Locking setup or run mode
Models SE and DL
To unlock/unsecure
Disabling secure run or secure setup (unlocking)
4. To set Secure Setup Mode, ensure it is highlighted by pressing Down
arrow. Once selected, press Enter and “0000” will app ear. (See Figure
4-10 for a screen example.) (Also, you must be in stop mode.)
• To select a numeric code, press Up/Down arrows to select a
number, press Enter to toggle between the fields.
• Press On/Off/Esc repeatedly until the Start screen appears.
This will Enable the Secure Setup (or locking setup).
Figure 4-12: Secure/lock setup prompt
Disabling secure run or secure setup (unlocking)
You can disable Setup Mode security only when the session is stopped.
From Secure Run or Secure Setup screen
1. Both screens will have a Lock softkey (see Figures 4-11 or 4-12).
2. Press the Lock softkey and the code will appear (see Figure 4-10 for
example).
3. Enter in the code (using Up/Down arrows to change value and Enter to
move to next field).
4. Press Enter to exit the code field. Disabled will appear indicating the
lock feature is turned-off.
Press lock softkey and
then enter in code.
Secure code backup number
If you forget your own security code, you can enter “9157” in the template to
disable Secure Run Mode or Setup Mode Security.
From the Start screen
1. In the Start screen, press the Lock softkey. The Lock screen appears.
2. Follow Steps 2-4 above, “Setting secure run or secure setup”, page 47.
50 Digital outputs/Triggering
Models SE and DL
OUTPUT 1
Select Run/Pause to enable
Tracking runs
Digital outputs/Triggering
All digital output signals (also referred to as “Triggering”) appear on pins of
the Auxiliary Port (“Auxiliar y port” on page 7). Manage these digital outputs in
the Ext-Trigger screen.
Tracking runs
The instrument can be configured to use a digital output to signal the start or
end of a run.
Enabling or Disabling run/pause digital outputs/triggers
1. From the start screen, press Up/Down to highl ig ht Setup and
press Enter .
2. Select Digital-Out by using Up/Down to high lig ht and pres s
Enter to select.
3. Press to select Output 1.
4. Press to enable (Run/Pse) or disable (Off) run tracking.
5. If you enabled and want to reverse the trigger logic, continue below.
Otherwise, skip to st ep 9.
6. Press to select Logic 123, then press to enter the first data
field. The second data field is for Output 1.
7. Press to select the second data field, then press to toggle the
logic state. The displayed logic state is for a running study.
8. Press to exit the Logic 123 data field.
9. If finished, press to exit the screen.
Figure 4-13: Digital-Out screen
51 Communications
Models SE and DL
Digital outputs and SPL
Digital outputs and SPL
The instrument can also be configured to use a digital output to signal if the
current SPL measurements exceeds a specified level.
Managing SPL digital outputs (See Figure 4-13 above)
1. Open the Digital-Out screen, by selecting Setup from the start screen.
(Press arrows to select Setup and press .
2. Press to select Output 2 or Output 3, then press to move the
cursor to the data field at the right. You have two options for each output.
• OFF - Disables SPL tracking for that output.
• dB level - Enables and shows the current setpoint for that output.
3. Press to toggle between these options. If you select “Off,” press
to exit the data field, then skip to the last step of this procedure. If you
enable the trigger, continue below.
4. Press if you wish, to change the setpoint.
5. Press to exit the data field.
6. If satisfied with the trigger logic, skip to the last step of this procedure. To
toggle the logic setting, continue below.
7. Press to select Logic 123, then press to enter the first data
field. The third and fourth data fields are for Output 1 and Output 2,
respectively.
8. Press to select the appropri ate dat a fiel d.
9. Press to toggle the logic state. The displayed logic state is for SPL
that equals or exceeds the setpoint.
10. Press to exit the Logic 123 data fields.
11. If finished working in the Ext-Trigger screen, press to exit the screen.
Communications
The SoundPro has both USB and RS-232 communication channels. The
majority of users should only require USB communications, which is vastly
faster than the RS-232 channel which is intended for low speed modems
GPS applications, and/or log-to-port applications but may be used to
communicate to a PC as well. The optional 053-729 Serial Cable is required
for RS-232 communications.
The SoundPro has two USB communications modes “QSP/Serial and “Mass
Storage.
52 Communications
Models SE and DL
QSP/Serial
QSP/Serial
(Figure 4-14). For QSP-II communications, USB should be set to
“QSP/Serial”. The RS-232 channel should be turned off for low power
consumption.
Figure 4-14: QSP/Serial
Mass Storage
When the USB channel is set for Mass Storage mode the user will have direct
access to the instruments SD card through programs such as “Windows file
manager”. Much the same way a small pocket USB flash drive operates. When
obtaining data from the SoundPro via Mass Storage, it is important to remember
that the data obtained is in Native SoundPro SES format (It cannot be read with
Excel, Word, etc.) A SoundPro SES to XML conversion utility is available.
NOTE: When using Mass storage, the user must use the Windows “Safely Remove
Hardware” feature to un-mount the SoundPro from the PC in the same manner a
user must remove a flash drive. This “Windows” feature is usually found in the lower
right-hand side of the windows systems tray.
Figure 4-15: Mass Storage
53 Communications
Models SE and DL
LOG to Port
Viewing real-time measurements remotely
USB communications
1. If a session is running, stop it.
2. In the Start screen, press to select Setup, then press . The Setup
screen appears.
3. In the Setup screen, press the arrow keys to select Comm Set, then press
and the Comm-Set screen appears.
4. USB should be Highlighted. Press to toggle between “QSP/Serial” and
“Mass Storage”.
5. If the RS-232 channel is not set to “Off/Lo-Pwr”, press the left arrow to
highlight RS-232 and repeatedly press until Off/Lo-Pwr is displayed.
6. Press to exit the screen.
7. Connect the small end of the USB cable to the USB port (“Hardware
interfaces” on page 6).
8. Connect the large end of the USB cable to a standard-sized USB connector
on the computer.
Viewing real-time measurements remotely
On the SoundPro, the “Log to Port” feature, provides the functionality to stream
logged data out the serial port at the log rate to an external device (such as a pc).
With this feature, you are able to view logged measurements for broadband as
well as filter band average measurements (depending on the model you
ordered). It will not report Lmax, Lmin, or Lpk for each filter band.
Turning on log to port
1. In the Comm Set screen (selectable via the Set-up screen), select RS-232
field (by pressing the down arrow).
2. Press repeatedly to turn on LOG PRN.
Press Enter key repeatedly
to activate
Figure 4-16: Log to Port
54 Communications
Models SE and DL
GPS selected
“NO Fix” i ndicates GPS is not
GPS
GPS
The SoundPro has the capability of embedding GPS information into study
headers. To interface a GPS, you need a GPS receiver with RS-232
communications that conform to NMEA 0183 version 2 and the optional 053729 Serial Cable. In many cases, a Male-Male DB-9 null modem connector
will be required as well.
The SoundPro will keep a GPS fix for up to 1 minute before declaring it
invalid at which time “No Fix” will appear if you are in the “COMM-SET”
menu. In other screens where a RUN may be initiated, “GPS +” or “GPS-” is
momentarily flashed in the Right Soft key indicating either a valid fix “GPS +”
or an invalid or timed out fix “GPS-”.
NOTE: GPS time can be viewed in the Comm Set screen but is not used in
the instrument or added to session files. Time and date stamping in session
files uses information that is manually entered (“Time and date” on page 25)
or downloaded from QSP II (“Information screen” on page 8).
GPS display
You can view GPS data in the Comm-Set screen. The position coordinates
are stored in each study, when GPS is enabled and can be viewed with DMS
(see page 9 for details.)
connected or not reading from
GPS explained
Figure 4-17: Comm-Set screen for GPS data
The top two screen selections, Interface and Baud Rate, specify the GPS setup,
which is explained under “Enabling GPS communications,” below. The rest of the
information in the screen appears when GPS communications is enabled and
data is being received from a GPS satellite.
55 Communications
Models SE and DL
Viewing GPS coordinates
GPS
• Status line - This data field at the right on this line tells you whether GPS is
enabled or not. You may see “No Fix” below this line, which tells you that,
although enabled, the instrument is not receiving the satellite signal.
• Position line - When the satellite signal is being received, there will be two
data fields on this line that give the instrument’s latitude (N or S) and
longitude (E or W) position in degrees and minutes.
• Other line - When the satellite signal is being received, there will be two
data fields on this line that give the instrument’s altitude and time, in that
order. The altitude is given in meters above mean sea level. The time is
given for Greenwich, England (GMT) and differs in hours from your time by
the number of time zones between your location and Greenwich.
Enabling GPS communications
1. If a session is running, stop it.
2. Connect the RS-232 cable to the GPS receiver and to the auxiliary
port of the SoundPro SE/DL instrument (“Auxiliary port” on page 7).
3. Referring to the user manual for the GPS receiver, prepare the device
to receive satellite signals.
4. In the SoundPro SE/DL Setup screen, press the arrow keys to
select Comm-Set, then press , and the Comm-Set screen
appears.
Figure 4-18: Viewing GPS coordinates in COMM-Set screen
5. Press the down arrow to highlight “RS-232”.
6. Repeatedly press until “GPS” is displayed. The Baud rate should be kept
at 4800 unless otherwise specified by your GPS manufacturer.
NOTES: If you are not using RS-232 communications in any way, you
should keep the RS-232 channel set to the Off/Lo-Pwr setting.
56 Communications
Models SE and DL
GPS
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57 Virtual meters
Models SE and DL
Notation
Explanations
LCS
SPL measured with C-weighting and slow response.
L
CSav
Average SPL with C-weighting and slow response.
LAPk
Peak SPL with A-weighting
L
CSMx
Maximum SPL with C-weighting and slow response.
L
CSMn
Minimum SPL with C-weighting and slow response.
Meter 1/Meter 2 explained
Preparing to measure & running
This chapter explains the steps needed to prepare the SoundPro for
measuring and how to run measurements. It will also show you sample
measurement result screens and explain the contents of the screens.
Virtual meters
SoundPro SE/DL operates with two parallel measurement systems called
meters. Each meter obtains the same input from the microphone, processes the
information through the same SoundPro SE/DL circuits and displays the
measurement results in the same screens. The differences lie in the parameters
used by each meter to process the signals. You can get different measurement
results by setting the parameters for each meter differently.
Meter 1/Meter 2 explained
Meter 1 and Meter 2 enables you to setup and monitor two instruments in
one (also referred to as a “virtual instrument”). “Meter 1” is the primary
meter. “Meter 2” is the secondary meter. If a filter option is installed in the
instrument, the filtered measurements are associated with “Meter 1” only.
Setting Meter 1/Meter 2 Parameters are explained in Chapter 3. (See Figure
3-4 for a screen example.)
CHAPTER
5
Measurement notation (IEC/ISO)
Many of the instrument’s measurements are labeled in accordance with notation standardized jointly by the International Electrotechnical Commission
(IEC) and the International Standards Organization (ISO). This notation identifies the measurement and the meter’s frequency and time response settings
when the measurement was obtained. Table 5-1 provides a couple
measurement examples. For additional information about measurements
and measurement parameters, see Appendix B, “Glossary.”
Table 5-1: Measurement notations
58 Overview of running a session/study
Models SE and DL
Quick Help List
Meter 1/Meter 2 explained
Overview of running a session/study
The list below is a brief overview of the steps for running a study.
1. Turn the SoundPro on and check your battery power. (See Chapter 1).
2. Format the card or delete session files from the SoundPro.
o Formatting the card will clear out all of data before your study begins.
Choosing to select specific session files and delete will also clean up
the instrument’s sessions. (See Chapter 7).
3. Adjust your settings to fit the specifications of your sound study. (See
Chapter 4 and Chapter 6)
4. Set the measurement range (Chapter 5)
5. Calibrate the SoundPro (Chapter 5)
6. Position the SoundPro in the field and connect appropriate external
devices if applicable.
7. Press the Run/Pause key to start the session. (Chapter 5)
8. To Pause the session (if needed) press the Run/Pause key. (Chapter 5)
9. When you are ready to end your session/study, press the Stop key.
NOTE: You must be in pause mode to stop a session/study. (Chapter 5)
10. Review your measurement results on the So und Pr o di splay (Chapter 5).
Or view results in QSP-II, see Communicating in Chapter 8.
59 Preparing to measure
Models SE and DL
Storing Data
Explanations
A session is comprised of one or more studies and uses data
maximum SPL for the entire session. Likewise, an average or an
Studies
Studies are periods in a session during which measurements
Session and
Study
You will be running a sound test in a machine shop. Your main
Sessions and Studies
Preparing to measure
Sessions and Studies
Before you begin running a session/study, there are a couple items to consider:
• Understanding sessions and studies
• Adjusting the measurement range before running a study
• Calibrating the instrument
The following components explain how the data is stored on the instrument.
Session
Scenario
derived or accumulated from those studies to arrive at session
results. The measurements in a session are the same ones
made in each study in the session. For example, the maximum
SPL determined for each study in a session is compared to the
maximums for each other study in the session to determine the
accumulation for a study is continued using data from
subsequent studies in the session to arrive at the corresponding
average or accumulation for the entire session.
are acquired, processed and saved by the instrum ent. The
duration of each study period is called the study’s run time.
objective is to determine the noise in three different work areas
of the plant which include two different machinist areas and a
welding area. You set the SoundPro to run and pause three
times at one-hour intervals. When the tests are completed, you
upload the data into QSP-II. The tests will store as one
“Session” under “Downloaded” node and each one-hour test is
denoted as a “Study”.
Table 5-2: Sessions and studies explained
CAUTION: The memory card should not be inserted or removed during a study—
you can lose data.
60 Preparing to measure
Models SE and DL
Range
Range
Measurement range
Measurement range
You select the decibel range before running the first study in the session.
Setting the measurement range helps keep the desired measurements within
the linear range of operation. If you don’t make an optimal range selection,
low levels of sound can be hidden in the instrument noise (below the noise
floor of the instrument), and high levels of sound can be distorted (the
instrument is “overloaded”). Measurements at these extremes are invalid. For
information about these and other terms that may be unfamiliar to you, see
the glossary in this manual (Appendix B, “Glossary”).
Measurement range selection
1. From Start screen, select either View Current Study or View Session.
The bar chart screen appears. To select, press arrows and then
press .
- NOTE: The bar chart screen may appear with a different measurement
displayed and a different range. This is dependent on the settings you
may have selected. (For more information, please see “Measurement
Type”, on page 26)
2. (Depending on if you selected basic SLM or applied 1/1 or 1/3 octave
band filters) a bar chart screen or a filtered bar chart screen will appear,
press . This changes the range, and the change is confirmed in
the screen in two ways.
• Ranges - A different range may appear each time you press an arrow key.
The instrument provides eight selectable ranges, each with different minimum
and maximum values. (For more information about ranges, please see
“Ranges” in the Specifications in Appendix A, on page 123).
• SPL value – Depending on if you have the instrument set to measure basic
sound level measurements (see “A” below) or filtered sound level
measurements (see “B” below), the following two types of screens may
appear. The level increases or decreases in relation to the range selection
Figure 5-1: Bar chart screen (A) and Filtered Bar Chart (B)
61 Calibrate
Models SE and DL
Calibration screen
Calibrate
3M recommends calibrating your Verifier before you run a STI-PA
measurement and after to ensure highly accurate measurement results.
The microphone should be calibrated before use for a number of reasons.
First, the microphone is sensitive to humidity and pressure changes.
Calibrating before taking measurements assures that your level
measurements are accurate for the current environment. Performing a
calibration verification (post-cal) allows you to verify that conditions have not
significantly affected your readings.
Calibrating also serves the dual purpose of checking the microphone for
significant damage, such as a torn or contaminated diaphragm.
You can calibrate the instrument in the field with reference to the output of a
calibrated sound source. 3M offers a line of acoustic calibrators that are
available (such as the QC10/20).
Calibration screen
The Calibration screen contains a calibration option, called Calibrate, and a
Calibration History. The history shows Pre-Calibration (Pre-Cal) and PostCalibration (Post-Cal) results for previous calibrations, as applicable. For
each calibration type, the resulting SPL level is shown along with the time
and the date of the calibration.
Pre-Calibration
The main reason to calibrate is to adjust the current microphone reading to
match a reference input, usually provided by a calibrator.
A Pre-Calibration is conducted when the session is stopped. When you
calibrate during a stopped session, the new calibration results replace the
previous Pre-Calibration results and the Post-Calibration results are
removed. You will always see the last Pre- Calibration results.
Post-Calibration
A post-cal is really a calibration verification; that is, it does not change the
instrument’s calibration. It compares the microphone's current level with the
value read from the last calibration (assuming that the same source is used).
A Post-Calibration is a calibration done during a session pause. When you
62 Calibrate
Models SE and DL
Cal Adapter
QC10/QC20
Microphone
Performing a calibration
Performing a calibration
Before beginning your calibration, ensure the calibrator has sufficient battery
power to perform the calibration. Also, you will want to insert the “cal adapter”
into the mouth of the calibrator.
If the SoundPro has a windscreen, please remove.
Calibrating
1. Ensure the SoundPro is turned On and is either stopped or paused.
2. Attach the calibrator and cal adapter to the SoundPro. Set the calibrator to 1
calibrate during a pause, the new calibration results replace the previous PostCalibration results without affecting the Pre-Calibration results. You will not
see Post-Calibration results if a pre- calibration was performed but not
followed by a Post-Calibration.
KHz and 114 dB (if it is a selectable).
Place calibrator
over microphone
Insert into cavity of
QC10/QC20
Select 1kHz and 114 dB
Figure 5-2: Attachin g calibrator to SoundPro
3. From the Start screen, press the Cal softkey and the Cal screen will open.
4. Select Calibrate by pressing Arrows (if not selected) and press Enter
to open the Pre-Cal screen.
5. Switch On the Calibrator.
63 Calibrate
Models SE and DL
Measurement
value
Measurement value
Pre-Cal
Press up/down softkey to
increase/decrease cal value
Performing a calibration
6. Allow the measurement to stabilize and then press Arrows to set 114.0
7. Press Enter to store the new calibration. The Calibration History screen will
Displays precalibration
information
displayed graphically
Figure 5-3: Setting pre-cal screen
dB level.
appear with the new calibration values in the display.
Figure 5-4: Calibration history screen
8. Press On/Off/Esc key to exit the Cal screen.
9. For a Post Calibration, ensure the SoundPro is in “Pause” mode. (Essentially,
run a measurement and pre ss the run /pa use key. ) The Pause indicator will
appear at the top of the display.) Then repeat the Calibration steps above and
press Enter to store the Post Calibration information. A sample screen is
displayed below with post calibration history.
64 Running a session/study
Models SE and DL
RunTime
Run icon
Battery icon
Lookup softkey
Post-Cal
Pause indicator
Performing a calibration
Displays postcalibration
information
Figure 5-5: Post-Calibrate history screen
Running a session/study
You run a “session”, commonly called opening a session, by running (or
starting) the first measurement. To run a “study”, you would press pause and
then proceed in the run mode. This would save the measurement as a
“study”. Studies will be saved as you co ntinue t o run and paus e your
measurements. Once stopped, this will save as one session.
Running a session/study
1. From the Start screen, select either View Session or select View
Current Study.
2. To select, press arrows and then press .
3. Press to begin measuring. A session is currently open for the
instrument when either the Run icon or the Pause icon appears in the
Status Area at the top of the screen.
Figure 5-6: Bar Chart screen in run mode
65 Measurement navigation
Models SE and DL
screens
Chart
Depending on if you selected SLM, 1/1 octave, or 1/3 octave,
Available for Meter 1 only. If your instrument contains a filter
Dosimetry
Available for both meters, all viewing areas and all instrument
Available only for Meter 1 and all instrument types, but not for
Available for both meters, but only for broadband studies.
Using softkeys in measurement screens
NOTE: The Lookup softkey is used to change the measurement options.
There are five selections which include: SPL, Leq, Lpk, Lmax, Lmin.(See
“Changing displayed measurement” for more information, on page 66.)
Measurement navigation
You can navigate through the measurement screens by repeatedly
pressing . The first screen you encounter when viewing a measurement
screen is a bar chart or filtered bar chart screen. The subsequent screens
that appear depend upon the measurement setup, the meter selection and
the type of analysis. There are four possible screen types:
Measurement
Explanations
Bar Chart or
Filtered Bar
Tabular screen
screen
Community
screen
Time Log
screen
one of these screens will appear.
option and is set to an octave or third-octave analysis type, the
screen that appears next in order after the Bar Chart is a
Tabular screen. There may be one or more additional Tabular
screens depending upon the analysis type that’s in effect.
types.
studies. This screen will not appear when viewing the current
study.
Table 5-3: Measuremen t scre en s expla in ed
NOTE: If you’re not running a study when you enter a viewi ng area, only the SPL
measurement is being measured and is available for viewing. The values for any
other measurement in the Selection Panel discussed under, “Changing displayed
measurement”, are replaced by dashed lines.
Using softkeys in measurement screens
The softkeys function in relation to the contents
of the Softkey Region of the display. To use the
66 Measurement navigation
Models SE and DL
Lookup softkey
Selection Panel
Using softkeys in measurement screens
softkeys, the menus are visible in Softkey Region (i.e., “Cal” for Calibration menu). If
necessary, press the Alternate Functions key ( ) to toggle the contents of the
Softkey Region.
Changing displayed measurement
You can change the displayed m easurement in any viewing area at any time. There
are five measurement options available: SPL (L_), average SPL (L_av or L_eq
depending upon the exchange rate setting for the selected meter), peak SPL (L_Pk),
maximum SPL (L_Mx) and minimum SPL (L_Mn). The labels comply with IEC/ISO
notation (“IEC/ISO notation” on page 57), where the underline character represents
the time response and frequency weighting settings for the selected meter.
Changing displayed measurement
1. If necessary, press (Alternate Functions key) to show the softkey
labels.
2. Press the softkey to display the Select ion Panel . The available
measurements are arranged in a column, with the selected measurement
marked.
This appears when lookup softkey is
pressed.
• The diamond symbol u indicates
which measurement is selected.
(L_eq). Press Enter key to confirm
Figure 5-7: Selecting measurements with Lookup softkey
3. Press to make a different selection.
4. With your selection marked, press or press to make the
change effective.
NOTE: When viewing during broadband analysis, you can use the left/ right arrow
keys to change measurements.
Analysis type, time response and weighting
If your instrument has a filtering option, you can change the analysis type. To
change the analysis type, time response, and/or weighting, you must be in the
View Current Studies screen or in the View Session screen. Also, the current
session must be stopped (or “closed”). For more details on changing these
67 Measurement screen icons
Models SE and DL
Descriptors
Session identification. This field tells you the name of the
you loaded before entering the viewing area
SY
Study identification. This field, which appears only when you’re
M
Measurement label. This field identifies the displayed
Alternate
Viewing
Stop icon
Descriptor types
options, please see “Measurement type” on page 26 and “Meter 1/Meter 2
parameters” on page 27.)
Measurement screen icons
The measurement screen descriptor s and icons ide ntify certain conditions that exist
currently in the display. Press (Alternate Functions key) to toggle the contents of
the Softkey Region until you see the Viewing Descriptors. When the Viewing
Descriptors are displayed, an Alternate Functions icon appears below the battery
icon.
The Broadband chart figure below displays an example of these icons and
descriptors.
functions icon
descriptors
Figure 5-8: Example measurement icons & descriptors
Descriptor types
Viewing
SS
Table 5-4: Measurement icons and screen descriptors explained
Explanations
session that you’re viewing, either the current one or the one
viewing a study, identifies the sequential number of the study in
the session (01-99).
measurement in IEC/ISO notation.
68 Measurement screens
Models SE and DL
Bar Chart View
the measurement mode.
Broadband amplitude
Amplitude in the band
Selected band
Broadband Bar Chart view
band is enabled
Softkeys (menus options)
Softkeys (menus options)
Bar Chart and Filtered Bar Chart
Measurement screens
Bar Chart and Filtered Bar Chart
The first screen you’ll see in a viewing area contains a bar chart for broadband or
filtered measurements.
For the bar chart screen, the amplitude of the displayed measurement is shown
both graphically by the length of the bar and numerically below the bar. The bar
appears (and usually fluctuates) if the measured value is above the minimum
value for the selected measurement range.
For the filtered bar chart screen, the dominant characteristic of this screen is
the multi-element bar chart. The chart shows measurements in each filter band
and broadband values for both meters. That means that for octave analysis the
screen contains 13 bars (11 for filters and 2 for broadband), and for third-octave
analysis the screen contains 35 bars (33 for filters and 2 for broadband). A bars
appears (and usually fluctuate) if the measured value for the bar is above the
minimum value for the selected measurement range.
Shows SPL average value of Meter 1.
• Will display only if SLM is selected as
Shows SPL average amplitude
(or value) of Meter 1
• Will display only if octave
Figure 5-9: Bar Chart screen and Filtered Bar Chart screen
69 Measurement screens
Models SE and DL
Community Noise View
Exceedance levels
• L50 = 82.9% dB
Taxtmaximal
intervals
Community Noise screen
M aking changes to the Bar Chart or Filtered Bar Chart screen
1. The Range - The scale, shown above the chart, is fixed and cannot be changed
in the run or pause mode (or if you are viewing past studies). If the session is in
stop mode (or closed), press to change the range.
2. Softkeys- If the session is in run, pause or stop mode you can change the
following: Measurement displayed (via the lookup softkey) or Meter 1/Meter 2
screen. If the session is stopped (or closed), then you can also change the
response time and weighting.
Community Noise screen
This screen shows the results of measurements commonly associated with
community noise studies. Results are only available in this screen for those
measurements that are activated for the current session on meter 1.
The screen components are explained in detail in the “Measurement setup
for Community Noise” on pages 28-29.
• L1 = 99% dB
• L10 = 85.1% dB
Only appears on Meter 1 when
you are not viewing the current
study and when the community
noise parameters are activated.
• Value is 90 dB at 3 sec.
Figure 5-10: Community Noise screen
NOTE: Community noise measures are determined only for sessions, not for
studies, so you will not see this screen when viewing current studies.
70 Measurement screens
Models SE and DL
Dosimetry View
Dosimetry screen
Dosimetry screen
The Dosimetry screen provides several types of measurements of the accumulated personal exposure to noise. See “Setting logging options” on page 32 for
details.
Dosimetry measurements
Dosimetry measurements depend upon the run time—the longer the run time the
greater the accumulated dose. Accordingly, dose measurements will either
remain the same or grow during a study or session. They are determined from
broadband data regardless of the selected analysis type.
Figure 5-11: Dosimetry screen
Shows accumulated personal
exposure to noise.
• These measurements are affected
by the settings in the “Meter Set”
screen.
71 Measurement screens
Models SE and DL
Tabulation view
Tabulation screens
Tabulation screens
The Tabulation screen shows measurements for two broadband
measurements and for all the bands for the selected analysis type. For
octave analysis, all bands are visible in a single tabulation screen. When
viewing third-octave analysis, however, it takes three screens to display the
tabulated measurements for all bands. Press to cycle through them.
Figure 5-12: Tabulation screen for octave filtering
1/1 and 1/3 octave analysis measurem ent r esults
• Measurements and meters - All tabulated values in this screen are for
the displayed measurement and the selected meter.
Shows the average SPL on Meter 1
only.
• Only available if a filter option and
1/1 or 1/3 octave band is enabled
on your meter.
• Broadband measurements - The first measurement in the screen is a
broadband measurement for the selected meter. Following that
measurement, is the number of the selected meter (Meter 1 in this
example).
• Filtered measurements - After the broadband measurement, all other
measurements given in the display are for Meter 1 in each of the
frequency bands according to the type of analysis performed. For each
band, the center frequency of the band is given and the measurement in
that band is given at the right of the band’s identification.
72 Time History/Back-erase screen
Models SE and DL
Tabulation screens
Time History/Back-erase screen
When conducting a broadband study, you can view as much as the last 20
seconds of Max SPL in this screen. The current Max appears at the right
border of the Time Log chart (time=0) and advances, in one-second
increments, toward the left border of the chart. The data leaving the chart at
the left border is always a measurement that occurred 20 seconds ago.
Figure 5-13: Back-erasing
Back-erasing
You can remove undesirable data at the end of a study with a process called
back-erasing. Back-erasing is available only under these conditions.
• Analysis type - Back-erasing is unavailable for filtered studies.
• Viewing areas - You must be in either the View Current Studies or
View Session viewing area. Back-erasing is not available in View Past
Studies.
• Restricted to the pause -You can back-erase only during the pause that
follows a study. Back-erasing is not available for past studies in the
session.
• Not all studies - Because back-erasing requires a manual intervention, it
is unavailable for triggered or Auto-Run studies.
73 Back-erasing
Models SE and DL
Results of back-erasing
Results of back-erasing
Back erasing causes the following changes to the study and to the session in
which the study occurs.
• Run times - The run time of the back-erased study is shortened by
• Measurements - All measurements that use data that was removed
• Meters - Back-erasing applies on the same basis to both meters.
• Storage - The session file is corrected to reflect the new run times
• Back erased raw data - The raw data that you removed by back-
How to back-erase
1. While running a study, view the Time Log screen in either the View
Current Study or the View Session viewing area.
2. If yo u see data that you would like to remove from the study, press the
pause key to pause the study.
3. Press the left arrow to move the back-erase Time Line from right to left.
With reference to the Time Log figure below, the Time Line starts at the
Zero Marker and can be moved all the way across the screen to the 20second Marker. All of these characteristics help you identify the segment
to be back- erased.
• Zero Marker - Identifies the end of the back-erased segment. This is
• Time Line - Identifies the beginning of the back-erased segment.
the duration of the removed segment. The run time of the session is
also reduced by the same amount.
by back-erasing are corrected, as appropriate. For example, if the
maximum SPL had occurred in that erased segment, the instrument
re-evaluates the remaining data in the study to find a different
maximum value.
and other changes that resulted from the back-erasing.
erasing is saved in the session’s file. You can post-edit back-erased
data with DMS software.
always the end of the study.
74 Back-erasing
Models SE and DL
Results of back-erasing
• Duration - The length, in time, of the segment to be back-erased is
You can adjust the Time Line by pressing .
4.
5. When you have the Time Line in position, press . The Time Line
6. To cancel this screen, press to begin the process again. The Time
Line will reappear and you can select a different segment to back-erase.
NOTE: At anytime you can leave the time log screen, and return another
time to edit the back-erase segment provided that you have not started
another study.
given in the Softkey Region of the display.
Figure 5-14: Time Log screen
disappears and the softkey labels appear in the Softkey Region of the
display.
75 Back-erasing
Models SE and DL
Stop icon
Stop key
Run/Pause key
Stopping a session
Stopping a session
You can stop the session manually or with a trigger command, but only when
the instrument is in the Pause state. When the session is stopp ed, the Sto p
icon , appears in the Status Area and the RunTime clock is zeroed. For
information about using triggers, see “Digital Outputs/Triggers” on page 50.
Stopping a session is sometimes referred to as “closing the session.”
Conversely, a session is often described as “open” when the instrument is
either in a run or pause state.
Stopping and pausing
A manual session stop is a little different from a study pause. To pause a
study, , you simply press the Run/Pause key and the command is immediately
executed. To stop a session, , however, you need to press and hold the Stop
key.
If you don’t press and hold the stop key for the 3-second countdown period, the
stop command is ignored and the session remains open. If you hold throughout
the countdown, the following events occur in proper sequence.
Figure 5-15: Stopping and pausing
• Stopped - The session is stopped.
• Transferred - The session data in memory is transferred to the memory
card.
• Cleared - The instrument’s memory is cleared of session data.
• Zeroed - The RunTime clock is cleared to zero.
76 Back-erasing
Models SE and DL
Stopping a session
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77 Additional options
Models SE and DL
Reverberation
RT60, Curves, and STI-PA
Additional options
In this chapter, it is important to note that these features are additional add-on
options and may not be available on your SoundPro model unless you
specifically purchased these features.
Please see 3M’s website 3m.com/detection for more information:
• Reverberation
• STI-PA
• Curves
CHAPTER
6
Reverberation
Reverberation is the distribution of sound in an enclosed space after the sound is
removed or decayed. How is reverberation, or reverb, created in enclosed spaces? A
sound is generated in an enclosed structure with a combination of the direct sound
source (which travels from the sound source to listener by the shortest path without
interfering with room surfaces) and the reflected indirect sound source. The total
sound source echoes and decays as the sound is absorbed by the materials in the
room (i.e., walls, carpet, furniture, concrete, etc...) and air. This is noticeable when the
sound source stops but the reflections continue, decreasing in amplitude, until they
can no longer be heard.
78 Additional options
Models SE and DL
Decay Curve
dB level 1
dB level2
Reverberation time (RT60)
Reverberation time (RT60)
Reverberation time is a measurement used to evaluate and measure sound decay in
a specific space, tailored to speech or music, such as: classrooms, auditoriums,
gymnasiums, concert halls/theatres, (etc..). For room acoustic, results are used to
ensure quality sound is evenly dispersed throughout a specific room with limited
echoes/refractions. For music or performance auditoriums (i.e., symphonies), higher
reverb. time is preferred so the ending results are more robust.
The Reverberation Time over each octave band can be analyzed using a decay
curve. Each octave band shows the time of sound at the start and after the act ivat ion
of the noise system using either interrupted or impulse sound methods.
The example below displays the Reverberation Time in an enclosed room. How it is
measured with the impulse method: (1) A starter gun provides a broad impulsive
spectrum noise at 110 dB. The instrument automatically begins plotting the sound
decay (see dB level 1) and stops as the noise falls off (see dB level 2). Hence, the
rate of decay is calculated from decay curve (or regression line) which will give you the
rate of decay in the room. The RT60 measurement is calculated with the Txx time
(i.e., T20) factored in and extrapolated to a 60 dB drop.
Drop of sound pressure
from M aximum to its
ambient background level.
Figure 6-1: Reverb Time
Reverberation (RT60) methods
The two methods supported by the SoundPro are the Interrupted noise method
and the Impulse noise method. While the initial sound source used is different,
the ending decay curve results are very similar providing accurate RT60
measurements.
79 Additional options
Models SE and DL
T
1
T
2
Background
noise level
Reverberation (RT60) methods
Interrupted noise
The Interrupted noise method, applied with pink noise, is used with a portable
sound system, such as a dodecahedral speaker, or with an existing sound system
(only recommended if the sound system has a quality, omni-directional, sound
system.) With the interrupted noise method, the sound source emits a high-level
source and falls-off, returning to its original ambient background level. The Reverb
Time is measured between T
NOTE: T
ensure an accurate sound level capture
and T2 indicators with an ending RT60 time value.
1
is calculated from two reference points on the regression line to
1
Figure 6-2: Interrupted noise example
Impulse noise
The Impulse noise method requires a broad-spectrum impulsive noise source, such
as a starter pistol, in a room to be tested. Typically, the RT60 decay start will begin
at a high-level source and decays, reporting a Reverberberation Time.
80 Additional options
Models SE and DL
Field Description
Explanation of field selections
Method -
Interrupted – (This is the default method setting.)
Averaging –
Measurement – The RT60 result times for each filter band of the 1/1
Threshold -
Auto - (This is the default threshold setti ng. ) The i nstrument will
Measure -
Auto - (This is the default Measure setting.) The instrument will
selectable ranges are T10-T60.
Filters -
Measurements are plotted and stored in 1/1 or 1/3 octave band chart
the installed filter.
Reverberation options
Reverberation options
The following setup options are selectable via the Reverberation Time
Options Setup menu (displayed in Figure 6-3).
Selecting the
calculation process
of RT60 reverb
time.
Selecting how it will
calculate Average
for Reverb-time
Specifies the dB
level for triggering
the start or run of
the instrument. The
interpretation of this
field is dependent
on the
measurement
method.
The expected
decay value
1/1 or 1/3 bands
Interrupted method uses a constant sound source (i.e., dodecahedral
speaker), waiting for the level to stabilize, and then the source is turned
off. (The method uses random noise or pink noise to test reverb. time.)
Impulse – Impulse method is when the user tests the room with a
broad spectrum impulsive noise, such as a starter pistol or a balloon
popping.
Octave or 1/3 Octave modes are averaged across the studies to arrive at
a session average RT60 for that frequency band.
Ensemble - The decay curves for each filter band of the 1/1 Octave or
1/3 Octave modes are averaged across the studies to arrive at an
average session decay curve for that frequency band that is then used to
calculate the session RT60 for that band. This results in either eight or
twenty-four session ensembles, one for each frequency band in 1/1
Octave or 1/3 Octave modes, respectively.
automatically chose the level and calculate RT60. When in run mode, it
sets the threshold relative to the noise level in the room. It provides a
trigger level which is customized to each band.
40 dB – 140 dB (in 1dB increments). The threshold decibel is userselectable between 40 dB to 140 dB in one decibel increments.
• For Interrupted Noise method, level below this threshold will trigger
the start of a measurement.
• For Impulse method, levels above this threshold will trigger the start
of a measurement.
automatically pick the best Txx value based on the expected decay (i.e.,
T20).
T60 (T10 – T60) – (The default setting is Auto.) The selected “Txx”
value is the actual amount of drop/decay the instrument measured. The
and decay chart. This field is only selectable if both 1/1 and 1/3 octave
filter bands are installed features. Otherwise, the instrument will apply
Table 6-1: Reverberation time set-up options
81 Additional options
Models SE and DL
Reverb Time options
e. Filters field
a
Setting up reverberation
Setting up reverberation
The Reverb Time screen is used to change or view your reverberation settings.
The steps below outline how to change the parameters. Please review Table 6-1:
“Reverb time set-up options” for an explanation of parameters
1. From the start screen, select Setup (by using Arrows) & press .
2. Select Options menu (by using Arrows) and press .
3. Select Reverb Time (by using Arrows) and press .
4. In the Reverb Time screen to change the settings, follow below:
• To change the Method field, press to switch between
“Interrupted” or “Impulse” (when Method is selected).
• To change the Averaging field, press to switch between
“Measurement” or “Ensemble” (when Averaging is selected).
• To change the Threshold, press . Press to toggle between
“Auto” or a “dB” level value. To change the dB level, press
Arrows to a specific decibel level is selected (i.e., 80 dB) (when
Threshold is selected).
• To change the Measure field, press to toggle between “Auto” or
an “RT” value is selected (when Measure is selected). To change,
press Arrows to a specific decibel level is selected (i.e., 80
dB) (when Threshold is selected).
• To change the Filters field, press to switch between “1/1” or
“1/3” (when Filters is selected).
b
c
d
e
.
a. Method field
b. Averaging field
c. Threshold field
d. Measure field
Figure 6-3: Reverb Time Setup screen
82 Additional options
Models SE and DL
Running reverberation test
Running reverberation test
There are a couple factors to consider when conducting a reverberation test.
Depending on if you will be measuring voice in a room, hall, theatre (etc..), ISO
3382 standard recommends measuring reverberation time for speech from 63 HZ
to 4 kHz. However for rooms with other intentions (i.e., music/acoustical
concerts), one-third octave bands from 100 Hz to 5 kHz can be used/applied. ISO
3382 also recommends a minimum number of recorded studies in order to obtain
a reliable reverb measurement session. This is done for two reasons: (1)
because the test signal is random noise, there will be a bit of run-to-run variance.
By taking a number of measurements from the same location and averaging them
together, you get a more reliable estimate of the actual measurement (2)
Because the acoustics in a room may vary, it is suggested to do spatial averaging
- taking measurements from multiple locations in the room and average them
together to get an average measurement for the room.
Once the setup options are selected, please follow the procedures below to run
and view RT60 measurements.
Reverberation (RT60) Test
1. Select setup parameters via the Reverb Time screen (see “Setting up
Reverberation” above).
2. (Skip this step if threshold is set to “Auto”.) View the ambient noise in the room
(the L
ZMAX
45 dB above background noise level is recommended.)
• To view the ambient sound in the room do one of the following:
(A) From the Start screen, select SLM as the measurement type and
(B) Follow “A” above but select 1/1 or 1/3 as the measurement type.
value) and note the value. (NOTE: To ensure a decay curve, at least
select View Current Study.
•
Verify that the range setting is appropriate for the level being
measured. It is desirable to select the longest range that will not
overload. Press Up/Down Arrows to change range. (For more
details, please see “Measurement range”, page 60.)
• Press Run/Pause key and notate the average level. (NOTE:
you may need to press the Look-up softkey and select
Leq to view the average ambient sound level. For more
information please refer to, “Changing displayed
measurements”.) When completed, press Run/Pause key and
then press Stop key to end the session.
83 Additional options
Models SE and DL
Measurement type
Reverb testing
Reverberation results
3. Select RT60 as the measurement mode from the Start screen.
Select RT60 for
4. , Please choose one of the following methods to conduct your test:
• Interrupted Method: Pump noise through room with existing sound
system or a portable sound system. Allow level to stabilize. Then press
Run .
• Impulse Method: Press Run . Impulse the room with a broad
spectrum impulsive noise (i.e., starter gun).
5. Depending on your Setup options, the Reverb Time will automatically
trigger and record the results.
NOTE: You may want to repeat this process a few times to ensure the
readings are accurate. Once the RT60 is captured, a pause indicator will
appear at the top of the screen. To run another study, press the run key
again and follow step 4. Or if you do not want to combine all of the
run/pauses into a session, press Stop and then Proceed with the Run key
and follow step 4.
Figure 6-4: Reverb Time Setup screen
Reverberation results
There are three viewable screen reverberation results which include t he RT 60
Summary chart, Decay Curve screen, and the Tabular Summary screen.
When the SoundPro is in pause mode, you can view the charts and graphs by
toggling through the screens via the Enter key. If you will be running multiple
84 Additional options
Models SE and DL
Filter band results
band frequency values
T
Overall RT60 value of
Selected band
RT60 bar chart
Decay (To view decay
Reverberation results
studies, you may want to review the data at the end of the session. In this
example, you would access the File\Session\Data File screen and select a
past study. (For more information, see “Viewing past sessions/studies” in
Chapter 7.)
RT60 summary screen
This is a vertical bar chart that will plot the T60 values taken from each octave
band or 1/3 octave band.
Viewing RT60 values of each band
1. The decay value for each specific band is viewable by pressing the
left/right arrow keys.
NOTE: Bands with invalid T60 values will show dashes (---) instead of a
value.
60(20)
measure.
20
States that T60
measurement was
extrapolated from a
T
selected band.
Displays the RT60 filter
results, press softkey)
Figure 6-5: RT60 bar chart screen
Deleting RT60 value in a filtered band
This optional feature allows you to delete a selected filtered band from the
session average and is available when in review mode of “view current study”
screens. (This may be used, if for example, you had someone accidentally
walk in during your test and begin speaking. You could delete the bands
which interfered with your test from the RT60 average results.)
1. To delete a filtered band, select either the RT60 Summary screen or the
Decay curve screen.
85 Additional options
Models SE and DL
Overall decay time
Sound pressure level
RT60 (To view RT60
Decay curve
Reverberation results
2. Select the band to be deleted (by pressing left or right arrows.)
3. Press the Delete softkey. (Repeat steps if you wish to del ete m ore
bands.)
Decay curve screen
This chart displays the (average or ensemble) results of a single Reverb
Decay curve from the study (i.e., one filter band)/or the average of all studies
within that session. (For more information, refer to “Sessions and Studies” in
Chapter 5).
Viewing decay value of each band
1. The decay value for each specific band is viewable by pressing the
left/right arrow keys.
results, press softkey)
Figure 6-6: Decay curve screen
NOTE: To delete a curve, please see “Deleting RT60 value in a filtered
band” above.
86 Additional options
Models SE and DL
Column
Explanation of data
Freq
The Frequency column displays the chosen filter bands (for 1/1 Octave the
T60
T60 column displays the results of the decay curve in seconds.
R
2
R
2
Txx
Txx column displays the actual measurements of the RT60s’ values.
Summary of the Reverb
octave band.
NOTE: The Txx value may show
selected for the trigger mode.
Reverberation results
Tabular RT60 screen
This is a table-formatted screen which details a summary of the Reverb Decay
Curve of each band. The following table is a brief summary of the tabular data.
Table 6-2: Tabular RT60 field explanation
range is 63Hz – 8KHz and for 1/3 Octave the range is 50Hz – 10KHz).
column displays the reverberation time measurements. The values
represent a “goodness to fit” ranging between 0 to 1 values, where 0 = failed
and 1 = perfect.
Decay curve results for each
different ranges when “Auto” is
Figure 6-7: Tabular octave filtering RT screen
NOTE: if “---”dashes appear, this indicates the measurement values are
Viewing Tabulation RT60 screen
1. To view all of the octave band filters, press the Up/Down Arrow keys to
invalid.
page through the filters’ data results.
87 Curves
Models SE and DL
Application 1 - Baseline: Applying a captured curve as a baseline or reference
•
•
•
Captured curve applications
Curves
Curves, also referred to as “Acoustic Spectral Curves”, is used to evaluate
the quality of noise in new or existing buildings. The SoundPro models SE
and DL support the following:
• Captured curves
• Noise Criterion curves: NC curves, PNC curves, NCB curves, NR
curves, RC curves,
• Audiometric Booth Background Curves: ANSI 53.1, OSHA, and ISO
AM Booth
Captured curves
Captured Curves, is a user-defined criterion curve, which allows the user to
make a measurement with a 1/1 octave band frequency or a 1/3 octave band
frequency distribution and save or capture the spectral curve. This snapshot
can be displayed in DMS as a baseline or reference curve. A new
measurement is then made and superimposed over the captured baseline
curve to illustrate octave band frequency deviations from the original
distribution, creating a user-defined criterion curve. This may be kept just as
a reference, or it may be used as an evaluation for product or process
comparisons, job task risk assessments, environmental investigations, and
other applications.
Captured curve applications
curve for noise abatement investigation.
The operator captures the original noise and then makes various changes to the
machine and/or enclosure and looks to see how much of a difference the change
made.
Application 2- Quality Control: Using a captured curve as a Quality Control (QC)
evaluation. The instrument has been pre-loaded with a sound curve that represents
the allowable levels for some product.
Once the product comes off the assembly line, it runs and the measurements are
compared to the allowable levels. If levels exceed the curve, it is sent back for
rework.
Application 3: Process monitoring: A set of machinery is monitored to watch for
changes in the operating sound.
If the measured sound exceeds the sound curve, it is an indication to the operator
that “something bad” is happening (i.e., over exposure) and he needs to shut
things down and call maintenance before more damage occurs.
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