How it Works
Larson Davis
Loading...
SoundExpert LxT
User Manual
307 pgs4.5 Mb0
Table of contents
Loading...

Larson Davis SoundTrack LxT, SoundExpert LxT User Manual

Download
LxT Manual
for
SoundTrack LxT
TM
®
& SoundExpert LxT
Larson Davis
for
SoundTrack LxT
& SoundExpert LxT
I770.01 Rev K Supporting Firmware Version 2.301
Copyright
Copyright 2016 by PCB Piezotronics, Inc. This manual is copyrighted, with all rights reserved. The
manual may not be copied in whole or in part for any use without prior written consent of PCB Piezotronics, Inc.
Trademarks
PCB
, SoundTrack LxT and SoundExpert are registered trademarks of PCB Piezotronics, Inc.
Swithcraft
is a registered trademark of Switchcraft, Inc. All other trademarks are property of their
respective owners.
Disclaimer
The following paragraph does not apply in any state or country where such statements are not
agreeable with local law:
Even though PCB Piezotronics, Inc. has reviewed its documentation, PCB Piezotronics, Inc. makes no
warranty or representation, either expressed or implied, with respect to this instrument and documentation, its quality, performance, merchantability, or fitness for a particular purpose. This documentation is subject to change without notice, and should not be construed as a commitment or representation by PCB Piezotronics, Inc.
This publication may contain inaccuracies or typographical errors. PCB Piezotronics, Inc. will
periodically update the material for inclusion in new editions. Changes and improvements to the information described in this manual may be made at any time.
Record of Serial Number and Purchase Date
LxT Model: LxT1 LxT2 Serial Number: ___________ Preamplifier Model: ________ Serial Number: ___________ Microphone Model: _________ Serial Number: ___________
Recycling
PCB Piezotronics, Inc. is an environmentally friendly organization and encourages our customers to
be environmentally conscious. When this product reaches its end of life, please recycle the product through a local recycling center or return the product to:
PCB Piezotronics, Inc. Attn: Recycling Coordinator 1681 West 820 North Provo, Utah, USA 84601-1341
where it will be accepted for disposal.
Warranty
For warranty information, refer to our Terms and Conditions of Sale on our website at
www.larsondavis.com/TermsConditions.aspx.
Table of Contents
Chapter 1 LxT Features 1-1
SoundTrack LxT ................................................................................................. 1-1
SoundExpert
Chapter 2 Overview 2-1
LxT Components ................................................................................................... 2-1
Summary of Displays and Icons ........................................................................... 2-6
Navigating and Selecting ...................................................................................... 2-8
Basic Run Functions ............................................................................................. 2-9
Tab and Setting Displays ...................................................................................... 2-9
Chapter 3 Preparing for First Use 3-1
Unpacking and Inspection ..................................................................................... 3-1
Connecting the Microphone and Preamplifier ...................................................... 3-2
Connecting the Preamplifier to the LxT ............................................................... 3-3
Disconnecting the Preamplifier from the LxT ...................................................... 3-4
Powering the SoundTrack LxT ............................................................................. 3-4
Chapter 4 Basic Measurement Setup 4-1
Measurement Settings Tabs .................................................................................. 4-1
LxT ............................................................................................... 1-5
Chapter 5 Data Display 5-1
Data Labels ........................................................................................................... 5-1
Tabbed Display ..................................................................................................... 5-1
Live Tab ................................................................................................................ 5-3
Overall Tab ........................................................................................................... 5-8
Session Log Tab .................................................................................................. 5-20
View Spectrum Normalized (Optional) .............................................................. 5-21
Chapter 6 Making Measurements 6-1
Preparation ............................................................................................................ 6-1
Positioning the LxT ............................................................................................... 6-1
Performing Measurements .................................................................................... 6-2
Storing Measurements ........................................................................................... 6-7
Data Storage After Improper Shutdown ............................................................... 6-8
Chapter 7 Calibration 7-1
Calibration Overview ............................................................................................ 7-1
Control Panel - Calibrate .......................................................................................7-2
Acoustic Calibration ..............................................................................................7-4
Sensitivity Tab .....................................................................................................7-11
Calibration Without Preamplifier ........................................................................7-13
Certification .........................................................................................................7-14
Chapter 8 Voice Recording 8-1
Launching the Voice Recorder Dialog ..................................................................8-1
Making a Voice Recording ....................................................................................8-2
Playing a Voice Recording ....................................................................................8-3
Storing Voice Recordings ......................................................................................8-3
Chapter 9 Time History 9-1
Parameters Logged ................................................................................................9-1
Time History Setup ................................................................................................9-3
Time History Tab ...................................................................................................9-5
Link to Measurement History Display ..................................................................9-8
Markers ..................................................................................................................9-9
Chapter 10 Measurement History 10-1
Enabling Measurement History ...........................................................................10-1
Continuous and Timer Modes .............................................................................10-2
Timed Stop Mode ................................................................................................10-3
Manual and Stop When Stable Modes .................................................................10-3
Display of Measurement History .........................................................................10-3
Link to Time History .........................................................................................10-12
Chapter 11 Data Explorer 11-1
Control Panel - Data Explorer .............................................................................11-1
Chapter 12 System Properties 12-1
Control Panel - System Properties .......................................................................12-1
Device ..................................................................................................................12-2
Time .....................................................................................................................12-3
Power ...................................................................................................................12-4
Preferences ...........................................................................................................12-8
Localization .......................................................................................................12-15
Displays .............................................................................................................12-17
Options ...............................................................................................................12-21
Chapter 13 Lock/Unlock the LxT 13-1
Control Panel - Lock ........................................................................................... 13-1
Fully Locked ....................................................................................................... 13-4
Locked With Auto-Store ..................................................................................... 13-5
Locked With Manual-Store ................................................................................. 13-7
Calibration When The LxT Is Locked ................................................................ 13-7
Chapter 14 About 14-1
Control Panel - About ......................................................................................... 14-1
About Tab ........................................................................................................... 14-1
Standards ............................................................................................................. 14-2
Options ................................................................................................................ 14-3
User ..................................................................................................................... 14-3
Chapter 15 System Utilities 15-1
System Utilities ................................................................................................... 15-1
File System .......................................................................................................... 15-2
Chapter 16 Parameters Measured 16-1
Basic Sound Level Measurements ...................................................................... 16-1
Sound Exposure Metrics Measured .................................................................... 16-3
Statistical Metrics Measured ............................................................................... 16-4
Community Noise Parameters ............................................................................ 16-4
Exceedance Counters .......................................................................................... 16-5
Miscellaneous Parameters ................................................................................... 16-5
Chapter 17 Memory Utilization 17-1
Out Of Memory Stop .......................................................................................... 17-1
Overall Data ........................................................................................................ 17-1
Session Log ......................................................................................................... 17-1
Measurement History .......................................................................................... 17-1
Time History ....................................................................................................... 17-2
Voice Messages ................................................................................................... 17-2
Chapter 18 Upgrading Firmware and Options 18-1
SLM Utility-G3 ................................................................................................... 18-1
Upgrading LxT Firmware ................................................................................... 18-1
Upgrading LxT Options ...................................................................................... 18-4
Appendix A Technical Specifications A-1
Standards Met by LxT ..........................................................................................A-1
LxT Specifications ................................................................................................ A-2
Electromagnetic Emission ..................................................................................A-15
1/1 and 1/3 Octave Filters ...................................................................................A-16
Position of Instrument and Operator ...................................................................A-19
Frequency Response ...........................................................................................A-20
Microphone Preamplifier Specifications ............................................................ A-43
Vibration Sensitivity ...........................................................................................A-59
Appendix B Testing to IEC61672-1 1
Sections 5, 6, 7 and 9 (except 9.3) ........................................................................ B-1
LxT1 ..................................................................................................................... B-8
LxT2 ................................................................................................................... B-13
Appendix C Glossary and Formulas C-1
CHAPTER

LxT Features

1

SoundTrack LxT

Hardware Features
This chapter describes the features for the SoundTrack
LxT
and SoundExpert LxTsound level meters.
The following sections describe the features for the SoundTrack LxT.
The Larson Davis SoundTrack LxT has the following features:
• Precision integrating sound level meter
• 2 GB unformatted standard data memory
• 160 X 240 pixel LCD display with backlight and icon­driven user interface
• Silent Touch elastomeric keypad
• Large dynamic range
• Jack for AC/DC output or headset (ACC003)
• Preamplifier can drive a 61 m (200 ft.) microphone extension cable (EXC200)
• 4-AA batteries provide 16 hour operating time
• USB 2.0 peripheral connector
• Field-upgradeable firmware
• Windscreen (WS001)
Basic Measurements
• SPL, Leq, Lmax, Lmin, SEL, Lpeak, Lpeak(max)
• RMS Detectors: Slow, Fast & Impulse
• RMS Frequency Weighting: A, C & Z
• Peak Frequency Weighting: A, C & Z
•L
statistics: 6 user-selected values over the range (L
N
through L
• 2 Sets of hygiene metrics: Lavg, TWA(x), Dose, ProjDose, Lep,d
LxT Manual LxT Features 1-1
) and Histogram tables
99.99
0.01
Basic Operation
•E, E8, E40
• SEA peak exposure
• 2 RMS event counters and 3 Peak event counters
• Auto-Store with Auto-Reset
• Run Timer and Stop-When-Stable Control
• Real-time clock
• Start time, elapsed time and paused time
• Time stamping for Lmax, Lmin, Lpeak(max) metrics
• Session Log
• Lock functions
• Calibration with calibration history and list of calibrators
• Power management
• Status bar and About display
• Multiple language support
• Data files and Data Explorer
• Automatic data backup to prevent data loss on power failure
• Overall measurement
Available Options
• LXT-OB1: Real-time 1/1 Octave Frequency Analysis
• LXT-OB3: Real-time 1/3 & 1/1 Octave Frequency Analysis
• LXT-LOG: Automatic data logging with intervals from 1 second to 24 hours
• LXT-HSLOG: Extends data dogging (LXT-LOG) with intervals down to 100 milliseconds
• LXT-ENV: Measurement History Environmental Data Logging
• LXT-CN: Community Noise
1-2 SoundTrack LxT LxT Manual
Standard Accessories
• LXT-DVA: Digital Voice Annotation (includes headset ACC003)
The LxT is delivered with the standard accessories described below.
• One of the following preamplifier/microphone combinations:
- PRMLXT1 preamplifier with a 377B02 micro­phone
- PRMLXT1L preamplifier with a 377B02 micro­phone
- PRMLXT2B preamplifier with a 375B02 micro­phone
- PRMLXT2L preamplifier with a 375B02 micro­phone.
• SWW-SLM-UTILG4 SLM Utility-G4 software
• SWW-SLM-UTILG3 SLM Utility-G3 software
• WS001 Windscreen, 3 1/2 in. diameter
• Alkaline Batteries: 4-AA
•Lanyard
Optional Accessories
Equivalent Electrical Impedance Adaptor
An equivalent electrical impedance adapter can be used in place of the microphone when a measurement is being made electrically. The adapter is simply a series capacitor with the same capacitance as the microphone it is replacing. The following adapters are available:
• ADP002 6.8pF adaptor for 1/4 in., 7pF microphone (377C01 or 377C10)
• ADP005 18pF adaptor for 1/2 in., 18pF microphone (375B02)
• ADP090 12pF adaptor for 1/2 in., 12 pF microphone (377B02)
LxT Manual SoundTrack LxT 1-3
Cables
Power Supplies
Software
Accessory Kits
Direct Input Cable or Adaptor
• EXCXXX Microphone extension cable, where XXX is the length in feet (XXX = 010, 020, 050, 066, 100 and 200 available)
• CBL138 USB Cable
• CBL139 AC/DC Output Cable
• PSA029 Universal AC Power Adaptor
• PSA031 12 Volt DC to USB Power Adaptor
• BAT015 External battery powering device for the LxT, holding 4 or 8 D-sized alkaline 1.5 volt batteries to extend run time
• SWW-BLAZE-LXT Blaze
• SWW-DNA DNA
• LXT-ACC including
- LXT-CCS Hard Shell Case
- CAL200 Class I Calibrator
- PSA029 Power Supply
- CBL138 USB Cable
• LXT-ACC1 including
- LXT-CCS Hard Shell Case
- CAL150 Class I Calibrator
- PSA029 Power Supply
- CBL138 USB Cable
Other
• 377C20 1/2” random incidence pre-polarized microphone, 50 mV/Pa, providing performance conforming to Class 1 sound level meter standards
• ACC003 Headset with microphone for voice recording/ Playback (included LXT-DVA)
1-4 SoundTrack LxT LxT Manual
• LXT-CCS Storage Case
Environmental Protection
• EPS2116 Environmental Shroud
• EPS2106-2 Environmental Shroud
• EPS2108-2 Environmental Shroud
• EPS030-LXT Environmental Case with one lead acid battery to be used with an external microphone tripod (the tripod is not included)
Tripods
• TRP001 Instrument/Camera Tripod with ADP032 1/2 in. microphone clip. Use with EPS2108-2
• TRP002 Microphone Stand with adjustable height and boom angle
• TRP003 Support Tripod, heavy duty, can be used with EPS030 or EPS2106-2
Calibrators
• CAL150
• CAL200
Printer
• PRN003 USB Serial Printer
SoundExpert LxT
The SoundExpert LxT sound level meter provides targeted measurement of environmental noise, and is sold in two base models:
• LXT1-SE-FF: SoundExpert LxT with free-field microphone (377B02)
• LXT1-SE-RI: SoundExpert LxT with random microphone (377C20).

LxT Manual SoundExpertâ LxT 1-5

Hardware Features
Standard Features
Standard Accessories
The hardware features for the SoundExpert LxT are the
same as those for the SoundTrack LxT. following accessories are included with the SoundExpert LxT:
• PSA029 Power Supply
• CBL138 USB Cable
The SoundExpert LxT is delivered with the standard features listed below.
• LXT-LOG: Automatic data logging with intervals from
1 second to 24 hours
• LXT-ENV: Measurement History Environmental Data
Logging
• LXT-CN: Community Noise
• LXT-OB3: Real-time 1/1 & 1/3 Octave Band Analysis
The SoundExpert LxT is delivered with the standard accessories described below.
• CBL138 USB Cable
• PSA029 Universal AC Power Adaptor
• One of the following preamplifier/microphone
combinations:
Additionally, the
- PRMLXT1 preamplifier with a 377B02 micro­phone
- PRMLXT1L preamplifier with a 377B02 micro­phone
- PRMLXT1 preamplifier with a 377C20 micro­phone
- PRMLXT2L preamplifier with a 375C20 micro­phone.
• SWW-SLM-UTILG4 SLM Utility-G4 software
• SWW-SLM-UTILG3 SLM Utility-G3 software
• WS001 Windscreen, 3 1/2 in. diameter
• Alkaline Batteries: 4-AA
1-6 SoundExpertâ LxT LxT Manual
•Lanyard
Optional Accessories
Equivalent Electrical Impedance Adaptor
An equivalent electrical impedance adapter can be used in place of the microphone when a measurement is being made electrically. The adapter is simply a series capacitor with the same capacitance as the microphone it is replacing. The following adapters are available:
• ADP090 12pF adaptor for 1/2 in., 12 pF microphone (377B02)
Cables
Direct Input Cable or Adaptor
• EXCXXX Microphone extension cable, where XXX is the length in feet (XXX = 010, 020, 050, 066, 100 and 200 available)
• CBL139 AC/DC Output Cable
Power Supplies
• PSA031 12 Volt DC to USB Power Adaptor
• BAT015 External battery powering device for the SoundExpert volt batteries to extend run time
LxT, holding 4 or 8 D-sized alkaline 1.5
Software
• SWW-BLAZE-LXT Blaze
• SWW-DNA +SWW-DNA-LXT
Other
• 377C20 1/2” random incidence pre-polarized microphone, 50 mV/Pa, providing performance conforming to Class 1 sound level meter standards
• LXT-CCS Storage Case
Environmental Protection
• EPS042 LxT1-SE-XX +BAT015 in small hard-shell carrying case
LxT Manual SoundExpertâ LxT 1-7
• EPS2106/8-2 Environmental Shroud for outdoor microphone protection
• EPS030-LXT Environmental Case with one lead acid battery to be used with an external microphone tripod (the tripod is not included)
Tripods
• TRP001 Instrument/Camera Tripod with ADP032 1/2 inch microphone clip. Use with EPS2108-2
Calibrators
• CAL200
•CER-LXT1 LxT calibration with report
•CER-MIC Microphone calibration
1-8 SoundExpertâ LxT LxT Manual
CHAPTER
Microphone
Preamplifier
LCD Display
Keypad
Connectors
2

LxT Components

Overview

This chapter provides an overview of the SoundTrack
LxT
sound level meter, including the following sections:
• LxT Components
• Summary of Displays and Icons
• Navigating and Selecting
• Basic Run Functions
• Tab and Setting Displays
FIGURE 2-1 The LxT
LxT Manual Overview 2-1
The standard LxT shown in FIGURE 2-1 includes the
Hardware Power Switch
USB Interface
AC/DC Output and Headset Jack
Auxiliary Connector
following:
• 1/2 in. diameter condenser microphone
• Backlit graphic 160 x 240 pixel LCD display
• 13-key soft rubber backlit keypad
• AC/DC output, control, USB, and external power connectors (shown in FIGURE 2-2)
• True “hand held” instrument with “sure grip” pads
DO NOT use the hardware power switch to turn the LxT OFF. This may cause data to be lost. Press the 0 (ON/OFF) key, then the Off soft key to turn the LxT off.
2-2 LxT Components LxT Manual
FIGURE 2-2 LxT Bottom View
• Hardware Power Switch: When set to “O”, the hardware power switch completely powers down the LxT for storage. Set the switch to “|” for instrument operation.
• USB Interface: The USB 2.0 full-speed peripheral port is used to control LxTs from PCs and transfer data to PCs using a CBL138 or other USB cables under 5 m in length. The LxT can also be powered via USB interfaces using PSA029 external power supplies.
Display
Measurement
Name
OBA Overload Icon
Input Overload Icon
Run Time
Measurement
Status
Power Indicator
Ta bs
Position
Indicator
Scroll Bar
Stability
Indicator
Left
Softkey
Center
Softkey
Right
Softkey
• AC/DC Output and Headset Jack: This jack is used to output analog AC and DC signals or to connect to headsets for recording and playback of voice records
• Auxiliary USB Connector: The auxiliary USB connector allows attaching USB storage devices.
The LxT has a 160 x 240 graphic, liquid crystal display that is backlit to provide comfortable viewing in most ambient light situations. Controls are provided for contrast and backlight adjustments.
When the LxT is first turned on, a display similar to FIGURE 2-3 is shown.
LxT Manual LxT Components 2-3
FIGURE 2-3 Data Display Screen
Keypad
Left
Softkey
Center
Softkey
Right
Softkey
RUN/PAUSE
STOP/STORE
UP
RIGHT
DOWN
LEFT
ENTER
RESET
TOOLS
POWER
Softkeys
Hardkeys
The LxT has a 13 button keypad. This section describes the buttons on the keypad.
The three buttons just beneath the display, on the body of the LxT, are called Softkeys, as shown in Figure 2-3. Above each Softkey, on the bottom of the display, is an icon or label indicating the action that takes place when the key is pressed. Softkeys are so named because the action associated with the key can change.
The ten remaining keys below the Softkeys are shown in FIGURE 2-4 and are described in TABLE 2-1.
2-4 LxT Components LxT Manual
FIGURE 2-4 LxT Keys
.
Use the Power, or ON/OFF button to turn the LxT on and off. The hardware power wwitch on the base of the unit must be in the “|” position.
Use the Navigation buttons Up, Down, Left and Right to move to areas on the display, to make selections from multiple options, or to enter alphanumeric characters into data fields.
Use the Enter button to select data, options, or displays or to enter alphanu­meric characters into data fields.
Use the Run/Pause button to initiate and pause measurements, and to continue paused measurements.
Use the Stop/Store button to stop measurements and to store measurements when measurements are stopped.
Use the Reset button to reset measurements.
Use the Tools button to specify settings such as date and time, managing power options and setting personal preferences (i.e. language, decimal and date for­mats, etc.).
TABLE 2-1 Keypad Hardkeys
LxT Manual LxT Components 2-5

Summary of Displays and Icons

Tabs
Data on the LxT is presented in a tabbed format. Move between tabs by using the right and left Softkeys.
Pages
Tabs are divided into pages that logically group the data together (i.e., 1/3 Octave data on the Live tab). Navigate up or down to different pages by using the 8 (Up) and 2 (Down) keys.
Scroll Bar and Position Indicator
The scroll bar represents the entire tab, and the position indicator shows the relative position of the page you are viewing. The position indicator in FIGURE 2-3 shows that the first page on the Live tab is being viewed.
Power Indicator
The icon indicates whether the LxT is being powered by batteries (battery level is also indicated), or by an external power source.
Measurement Filename
The name of the data file, or the measurement filename, is configurable as described on page 4.
Stability Indicator
For certain measurement modes and for calibration, an indication of the stability of the measured signal is presented by the following icon.
Run Time
This is the amount of time the measurement has been running.
Input Overload Icon
When signals from the preamplifier exceed the calibrated input range of the LxT, the Input Overload icon appears.
2-6 Summary of Displays and Icons LxT Manual
Under Range Icon
OBA Overload Icon
While the overload is present, the icon flashes. When the overload is removed, the icon disappears from the display.
If a measurement is running and an overload occurs, the icon shown below flashes during overloads.
When the overload has been removed, the icon is still present (not flashing) to indicate that overloads have occurred during the measurement. Resets clears the icon from the display.
When signals from the preamplifier drop below levels that can be accurately measured, an under range condition exists. When this happens the Under Range icon appears.
As long as the under range condition exists, the icon flashes. When the measured level no longer produces an under range condition, the icon is removed from the display.
When a measured level is in an under range condition, its displayed level appears in gray rather than black.
If inputs to the Octave Band Analyzer (optional firmware LXT-OBA required) become overloaded, the icon shown below appears to indicate overloads.
This icon operates similar to the Input Overload Icon shown in the above section “Input Overload Icon.”
Measurement Status
Reset Icon
The Reset icon indicates that a measurement is in a “reset” state.
Run Pending Icon
The Run Pending icon appears when the PAUSE) key is pressed and the LxT is waiting for filters and detector initialization to complete. The LxT automatically
LxT Manual Summary of Displays and Icons 2-7
9 (RUN/
Run Icon
Pause Icon
Stop Icon
Store Icon
starts the run after the initialization has completed (less than 10 seconds).
The Run icon is animated, moving from left to right to indicate that a measurements is in progress.
The Pause icon indicates that the current measurement has been paused.
The Stop icon is displayed when a measurement has been stopped.
The Store icon indicates that the current measurement has been stored.

Navigating and Selecting

To navigate between tabs on the display, press the right or left Softkeys. To navigate within tabs, use the 4 and 6 keys for moving horizontally on screens. This includes moving the highlight from one property to the next.
The 8 and 2 keys are used for moving vertically on screens. This includes moving the highlight from one property to the next and to move to previous or subsequent tab pages.
These keys are also used for character entry by navigating through lists of characters in text boxes.
The
5 key is typically used for completing selections,
completing actions, or accepting values.
2-8 Navigating and Selecting LxT Manual

Basic Run Functions

The basic measurement run functions are as follows:
• Running
•Pausing
• Stopping
•Storing
The
9 (RUN/PAUSE) key initiates a run. If a
measurement is running, this key pauses the run. It does not end the run; to end the measurement run, press the
(STOP/STORE) key. Pressing the 9 (RUN/PAUSE) key
when the unit is PAUSED continues the run. This key is only active on a Data View screen.
7
Pressing the when the unit is in STOP mode continues the previous run.
9
(RUN/ PAUSE) key
The 7 (STOP/STORE) key ends a run. Pressing the key a
second time stores the data in a file. This key is only active on a Data View screen.

Tab and Setting Displays

The LxT features and functions are organized into four different types of displays.
• Data Display tabs: used to display measured data.
• Measurement Settings tabs: used to set the parameters
• Control Panel (Tools) Properties: used to set user
• Power Control Page: used to check battery power,
Data Display Tabs
When the the Data Display tabs appear.
for a measurement.
preferences, to set non-measurement related parameters, and to implement calibration.
control the contrast and backlight of the display and other features.
0 (ON/OFF) key is pressed to turn on the LxT,
LxT Manual Basic Run Functions 2-9
Measurement Settings Tabs
Opening
From the Data Display tabs, pressing the Center Softkey labeled Menu brings up the menu shown in FIGURE 2-5.
FIGURE 2-5 Menu
Control Panel (Tools) Properties
Power Control Page
Data Display Tabs
For a more detailed description of the Data Display tabs and their associated pages, see Chapter 5 in the section entitled “Basic Data Display” on page 5-1.
Select Settings and press
Closing
Press the Center Softkey to return the Data Display tabs.
The Control Panel is accessed by pressing the key at the lower right of the LxT front panel. To exit from the Control Panel and return to the Data Display tabs, press the Center Softkey labeled Close.
The Power Control Page is opened by pressing the / OFF) key while on Data View tabs. To exit from the Power Control Page, press the Center Softkey labeled Close.
The Data Display tabs include the following: “<$paratext>”
• Live: Data is continuously displayed on this tab whether there is a measurement in progress or not.
• Overall: The data displayed on this tab represents data measured and averaged beginning from the time the measurement was started by pressing the Run key until the elapsed time indicated above the display. If the Pause or Stop key is pressed, the elapsed time is stopped. However, pressing the Run key continues the overall measurement, as shown by the elapsed time restarting from the time when it had previously been paused or stopped.
5 to open the Settings tabs.
3 (TOOLS)
0 (ON
2-10 Tab and Setting Displays LxT Manual
Measurement Settings Tabs
• Session Log: The Session Log is a record of data accumulation actions. A time-stamped record is made for every Run, Pause, Stop or Voice Message action.
• Current (optional) used in conjunction with Measurement History. Similar to the Overall tab except that data is based on the most recent run instead of the first run of the measurement.
• Measurement History (optional): This tab displays current data measurement times or stops using the Time History measurement feature.
• Time History (optional): This tab displays data measured using the Time History measurement feature.
The screen is not wide enough to show all thirteen setup tabs at the same time. Use the Right and Left Softkeys to navigate between tabs and bring them within view.
For a more detailed description of the Measurement Settings tabs and their associated pages, see Chapter 4 in the section entitled "Basic Measurement Setup" on page 4-1.
The Measurement Settings tabs allow for specific settings and include the following:
• General: used to create a file name and a measurement description.
• SLM: used to setup the parameters for the measurement of sound levels.
• OBA (optional): used to setup the real-time octave band frequency analysis.
• Dosimeter 1: used to setup the parameters for the measurement of sound exposure and noise dose.
• Dosimeter 2: used to setup the parameters for the measurement of sound exposure and noise dose.
• Ln: used to define the parameters for the measurement of Ln statistics.
• Control: used to setup the mode of measurement timing.
• Time History (optional): Permits the automatic logging of a specified number of parameters as a function of time.
• Triggers: used to setup the triggers which define noise exceedance events.
LxT Manual Tab and Setting Displays 2-11
• Markers (optional): Use in conjunction with time
• Day/Night (optional): Defines hours for day, night, and
Control Panel (Tools) Properties
The Control Panel uses icons to represent the different functions available. Pressing the the Control Panel icons.
The position indicator on the scroll bar indicates that there are additional icons not currently visible on the screen.
history measurements, this feature permits the user to annotate portions of a time history record to identify noise sources or make other notes.
evening periods for 24-hour noise monitoring.
3 (TOOLS) key displays
FIGURE 2-6 Control Panel
For more information, see “Control Panel - System Properties” on page 11-1.
2-12 Tab and Setting Displays LxT Manual
To select an icon, navigate to the desired icon and press The functions for icons on the Control Panel are described in subsequent chapters.
5.
Data Explorer
For a detailed description of Data Explorer, see Chapter 12 in the section entitled “Data Explorer” on page 12-1.
For a detailed description of System Properties, see Chapter 11 in the section entitled “System Properties” on page 11-1.
For a detailed description of the Lock feature, see Chapter 13 in the section entitled “Lock/Unlock the LxT” on page 13-1.
The Data Explorer is used to examine data that has been stored following previous measurements. It is also used to manage stored measurements, such as rename or delete files.
System Properties
System Properties tabs are used for general instrument bookkeeping. Functions such as setting the instrument date and time, display contrast adjustment, date format, etc. are located here. These are single page tabs.
The System Property tabs: are as follows:
• Device: Enter instrument identification.
• Time: Set the date and time.
• Power: Set controls that affect power consumption.
• Preferences: Set a variety of system parameters such as microphone correction, auto-store, jack function, reset prompting, takt maximal and USB port.
• Localization: Set regional characteristics such as language, decimal symbol, data format and units.
Lock
Lock permits the LxT to be configured such that certain keys are locked to prevent unauthorized use or tampering.
Calibrate
For a detailed description of the calibration procedure, see Chapter
Calibrate is used to verify and adjust the calibration of the LxT prior to a measurement.
15 in the section entitled “Calibration” on page 15-1.
For a detailed description of the voice recording feature, see Chapter 8 in the section entitled “Voice
Voice Recorder
A method to allow voice annotation of the data is described in Chapter 8 in the section entitled “Voice Recording” on page 8-1.
Recording” on page 8-1.
LxT Manual Tab and Setting Displays 2-13
About
For a detailed description of the About tabs, see Chapter 14 in the section entitled “About” on page 14-
1.
The About tabs provide the user with information specific to this instrument, such as serial number, options, etc.
The About tabs include the following:
• About: shows information such as serial number and firmware revision.
• Standards: lists the standards that the LxT meets.
• Options: shows the options that are available in this instrument.
• User: allows user entered instrument identification.
2-14 Tab and Setting Displays LxT Manual
CHAPTER

Preparing for First Use

3
This chapter outlines the steps to unpack the SoundTrack LxT
• Unpacking and Inspection
• Connecting the Microphone and Preamplifier
• Disconnecting the Preamplifier
• Powering the SoundTrack LxT

Unpacking and Inspection

Retain the packaging for safe shipment for calibration service.
Your LxT has been shipped in protective packaging. Please verify that the package contains the items listed below. Report any damage or shortage immediately to PCB Piezotronics, Inc. at 888 258-3222 (U.S. toll free) or (716) 926-8243.
•LxT
• PRMLxT Microphone Preamplifier
• Microphone
•Lanyard
• WS001 3 1/2” Windscreen
• 4 - AA Alkaline Batteries
• SLM Utility-G3 software
• SLM Utility-G4 software
and prepare it for first use, including:
Record Serial Numbers of LxT and Components
If you have not already done so, please record the purchase date, model and serial number for your instrument, preamplifier and microphone in the spaces provided at the beginning of this manual. You find the instrument model and serial numbers printed on the label on the back panel of the instrument.
LxT Manual Preparing for First Use 3-1
Loading...
+ 277 hidden pages
Buy Points How it Works FAQ Contact Us Questions and Suggestions Privacy Policy Cookie Policy Terms of Use