BRUEL & KJAER 2245 User manual

Noise Partner
with B&K 2245
User Guide
for Version 1.0
BN 2376–11

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TABLE OF CONTENTS
TABLE OF CONTENTS 3
INTRODUCTION 6
Overview 6
Licences 7
About 7
About the Instrument 7
About the Mobile App 8
About the PC App 8
System Requirements 9
Data Storage 9
Service and Support 10
Contact Information 10
Additional Documentation 11
GET STARTED 12
Hardware Interface 12
Instrument GUI 14
How to Display the GUI in a Web Browser 18
Install the Apps 19
Download the Mobile App 19
Download the PC App 19
Local Connections 20
Join your Local Network 20
Use the Instrument as a Hotspot 21
Remote Connections 21
How to Connect Remotely via an IPv4 Address 22
How to Connect Remotely via an IPv6 Address 23
Connect the Mobile App to the Instrument 24
Connect the Mobile App to the Instrument 24
How to Add the Instrument Manually 25
How to Disconnect Devices 25
Troubleshooting Connection Problems 26
Mobile App GUI 26
Charge the Battery 30

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Status 31
Power Consumption 31
SET UP THE INSTRUMENT 32
Regional Settings 32
How to Change Regional Settings 32
About the Settings 32
Input Settings 33
How to Set up the Input 33
About the Microphone 33
About Sound Fields 34
Measurement Control 34
How to Set up Measurement Controls 34
About Measurement Time 35
About Back-erase Mode 36
Measurement Parameters 36
How to Set up Broadband Parameters 36
Audio Recording 42
How To Record Audio 42
Display Settings 42
How to Change Display Settings 42
About Screen Settings 43
About Light Ring Brightness 43
About Measurement Display Settings 43
About Data View 44
Voltage Output 44
Lock the Settings 45
CHECK THE CALIBRATION 46
How to Perform a Calibration Check 46
Calibration History 48
Calibration Settings 48
Automatic Calibration Check 48
Calibration Reminder 48
Custom Calibration 48
MEASUREMENTS 49
Table of Contents:

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Make a Measurement 49
Data explorer 50
Data Management 50
Use the App to Make a Measurement 51
ANNOTATIONS 52
How to Make Annotations 52
How to Attach Unattached Annotations Using the Mobile App 53
TRANSFER DATA 54
How to Import Data to the PC App 54
How to Add an Instrument using Its IP Address 56
How to Store a Backup 56
Network Storage 56
USB Stick 57
USE THE PC APP 58
PC App GUI 58
Create a Project 63
Import Measurements 64
How to Import Measurements 64
Import from a Backup 66
Add an Instrument Using its IPAddress 66
Examine the Project 66
The Measurement Window 66
Review Annotations 68
Export a Project 69
How to Export a Project 70
About Master Files 70
TERMINOLOGY 72
Table of Contents:

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INTRODUCTION
Overview
Your instrument works with applications:
lNoise Partner is the default, general-purpose application for measuring sound levels
lEnviro Noise Partner is for measuring and analysing sound levels in the world around us
lWork Noise Partner is for determining sound exposure levels in the workplace
There is a mobile version and a PC version of each app.
The mobile app connects with the instrument to act as a remote control, and it enables you to document the meas-
urement with photos, videos, notes and commentaries using the functionality of your mobile device. Once you have
made a measurement, you will use the PC app to view and process data, and report your findings.
Introduction:Overview

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Licences
B&K 2245 is a type-approved sound level meter (SLM). However, this basic functionality can be extended with optional
licences; it can perform frequency analysis, log broadband and spectral data, perform statistical analysis and make audio
recordings.
Licences for the instrument control the functionality of the instrument and to which applications it can connect.
BZ-7300: Noise Partner
lMeasure broadband parameters
lConnect to Noise Partner mobile and PC apps
BZ-7301: Enviro Noise Partner
lMeasure broadband parameters
lPerform spectrum analysis (1/1- and 1/3-octave)
lStatistical analysis of measured broadband parameters
lLogging mode
lRecord audio
lConnect to Enviro Noise Partner mobile and PC apps
BZ-7302: Work Noise Partner
lMeasure broadband parameters
lPerform spectrum analysis (1/1- and 1/3-octave)
lLogging mode
lRecord audio
lConnect to Work Noise Partner mobile and PC apps
BZ-7304: Exhaust Noise Partner
lMeasure broadband parameters
lConnect to Noise Partner mobile and PC apps
About
About the Instrument
The instrument measures basic sound level meter parameters (Leq, Lmax, Lmin and Lpeak) with up to two sim-
ultaneous frequency weightings (A, B, C, Z) and up to three simultaneous time weightings (F, S, I) for the exponential
averaging.
✐Note: Licence BZ-7304 (Exhaust Noise Partner) enables basic parameters (Lmax and Lmin) with one frequency
Introduction:Licences

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weighting (A) and time weightings(F, S or I).
The instrument takes single measurements. In other words, the instrument calculates a single value for each measured
parameter for the total measurement time.
Standards
Go to: Menu >About >Standards
Here you will see the complete list of standards to which the instrument conforms.
About the Mobile App
The mobile app interfaces with the instrument, making remote measurements possible and making it easier to change
settings and interact with the data. It is recommended that you use the mobile app whenever possible.
Functionality of the mobile version of Noise Partner:
lSet up the instrument for measuring
lControl the instrument remotely
lAnnotate measurements (add photos, videos, notes and commentary)
lTrack position and time using GPS
lSee the status of the instrument
lView:
lInstantaneous broadband parameters
lTotal broadband parameters
lRecall past data stored on the instrument
✐Note: If you have additional licences installed (and enabled) on your instrument, Noise Partner is able to reflect cer-
tain functionality of the other licences. However, the help for Noise Partner only includes information for licence BZ-
7300 (Noise Partner).
About the PC App
Functionality of the PC version of Noise Partner:
lCreate projects from measurements stored on the instrument
lAdd measurements stored on the instrument to an existing project
lView:
lBroadband levels
lAnnotations (photos, videos, notes and commentaries)
lExport projects for sharing or reporting
Introduction:About

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System Requirements
The Mobile App
liPhone®
See supported iOS versions for current app version in the App Store®, under Noise Partner >Information >
Compatibility.
The PC App
System Requirements:
lWindows® 7, 8.1 or 10 (64-bit) operating system
lMicrosoft® .NET 4.7.2 framework
Recommended PC:
lIntel® Core™ i5 or better
lSound card
lSolid State Drive (SSD)
l8 GB of memory
lAt least one available USB port
lMicrosoft Office 2016 or later
Data Storage
The Instrument
Data storage: Approximately12GB
The instrument has 16GB of built-in storage, of which approximately 12GB is available for data storage. All meas-
urement data and annotations are stored on the instrument.
Measurements and annotations are imported to the PC application from the instrument. They can then be saved to your
computer or to a location on a network.
Useful Settings
lMenu >Data explorer:View past measurements or move them to trash
lMenu >Status: See remaining storage space
lMenu >System settings >Data management: Settings for data backup and retention
Introduction:System Requirements

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Mobile App
Neither measurement data nor annotations are stored on your mobile device, everything is uploaded to and stored on
the instrument.
Service and Support
The instrument comes with the standard product warranty for Brüel & Kjær products.
Visit www.bksv.com/Service to request a quote for or find information about services.
lHardware maintenance and repair
lCalibration
lExtended warranty contracts for hardware
Firmware updates: Return the instrument to a certified service centre to update the firmware.
✐Note: When you return your instrument for service, the firmware will be updated to the latest version.
Application updates:Updates are handled via the application.
Contact Information
For service and support, contact your nearest Brüel & Kjær Customer Care support team.
Headquarters: [e-mail], [phone]
China (Beijing): [phone]
France: service[email protected], [phone]
Germany: [e-mail], [phone]
Italy: [e-mail], [phone]
Japan: [e-mail], [phone]
North & South America: [e-mail], [phone]
Spain: [e-mail], [phone]
UK &Ireland: [e-mail], [phone]
Go to www.bksv.com/contact for contact information to our other global offices.
Introduction:Service and Support

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Additional Documentation
Product Data
lB&K 2245 with Noise Partner: BP 0029
lB&K 2245 with Enviro Noise Partner: BP 0030
lB&K 2245 with Work Noise Partner: BP 0031
lB&K 2245 with Exhaust Noise Partner: BP 0032
lMicrophone Type 4966: BP 2536
Resources
lEnvironmental Noise: BR1626
lMeasuring Sound Primer:BR0047
Introduction:Additional Documentation

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GET STARTED
Hardware Interface
The microphone is at the top of the instrument.
is the power/menu/reset button.
Press and hold the button to power the instrument on or off. When the instrument is on, press the but-
ton briefly to open the menu. If the instrument becomes unresponsive, press and hold the button for
approximately 30 seconds (remove cables first).
The arrow buttons scroll through measurement displays/parameters and navigate the menu.
Press and briefly to scroll through measurement displays.
Press and briefly to scroll through the parameters for each display.
Get Started:Hardware Interface

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is the stop/reset button.
Press the button once to stop a measurement. At this point, averaged measurement parameters will
stop updating and you can review the results. Press the button again to clear the results and reset the
instrument for the next measurement. Data is saved automatically.
is the start/pause button.
Press the button once to start a measurement, press it again to pause the measurement, press it a
third time to resume the measurement.
The screen displays sound levels and the menu.
Get Started:Hardware Interface

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The light ring is colour-coded to reflect the status of the instrument.
The light ring is solid green while measuring.
The light ring flashes yellow slowly while idle or quickly while paused (measuring).
The light ring flashes red quickly for intermittent overloads.
The light ring is solid purple for latched overloads.
The light ring flashes white slowly when switched off and charging the battery.
The light ring flashes blue while pairing a mobile device with the instrument.
On the base of the instrument is a threaded hole for mounting the instrument on a tripod and
aUSB-C socket. Use the USB socket as a connector or as signal output.
Instrument GUI
This is an example of the instrument graphical user interface (GUI) in dark colour
scheme while measuring and connected to the mobile app.
Hint: You can view the GUI in a web browser via the instrument's IP address.
Instructions are at the end of this section.
Get Started:Instrument GUI

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The top region shows measurement information and instrument status.
When idle, the instrument displays the current time (to the left) and input settings
(to the right).
: Indicates that Sound field is set to Free-field and there is no windscreen
: Indicates that Sound field is set to Free-field and there is a windscreen
: Indicates that Sound field is set to Diffuse-field and there is no windscreen
: Indicates that Sound field is set to Diffuse-field and there is no windscreen
During a measurement, the instrument displays the start time (to the left) and the
elapsed time (to the right).
Get Started:Instrument GUI

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The number in the centre is the measurement number. The first measurement of
every day is number 1. The number increments with each new measurement.
The background colour of the top region and the centre symbol change to indicate
the state of the instrument.
: Indicates that the instrument is ready to measure.
: Indicates that the instrument is measuring.
: Indicates that the instrument is paused.
: Indicates that the instrument is stopped and displaying results from the
measurement.
In the middle is the measurement display. There are views for broadband para-
meters (SLM view and List view) and a view for information about your data (About
data view).
Press and briefly to scroll through measurement displays. Press and
briefly to scroll through the parameters for each display.
SLM view (left) and List view (right) are the main dis-
plays for single measurements. SLM view shows a bar
graph and one broadband parameter. List view shows a
bar graph and a list of broadband parameters.
Get Started:Instrument GUI

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The bar graph shows the instantaneous sound level (L) with frequency and time
weightings. This display is sometimes called the fast bar or fast display.
: Indicates the maximum instantaneous sound level during a measurement.
✐Note: The bar graphs in SLM view and List view are unique, that is they can each be set to show a different para-
meter.
lGo to Menu >Display settings >SLM view >Graph parameter to set the parameter for the bar graph when dis-
playing one broadband parameter
lGo to Menu >Display settings >SLM view >Graph parameter to set the parameter for the bar graph when dis-
playing a list of broadband parameters
For very low or very high sound levels, you will see indicators.
: Indicates a signal that is under the measurement range.
Overload occurs when the signal is over the measurement range. There are two
types of overload indicators: latched and instantaneous. The latched-overload indic-
ator is triggered at the first instance of overload and persists until the instrument is
reset. The instantaneous-overload indicator is triggered every time the signal is over
the measurement range.
: Indicates instantaneous overload.
: Indicates latched overload.
The bottom region provides information about the system: battery, network, and
connectivity status.
The battery icons show the status of the battery. For example, (charging) or
(full).
The network icons show the current network settings and its status. For example,
(connected to a wireless network), (acting as a hotspot), (Ethernet
connection) or (aeroplane mode).
The connectivity icons show you to which app the instrument is connected:
(mobile) or (PC).
indicates that a backup is in progress.
Get Started:Instrument GUI

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The Menu
Use the buttons on the instrument to interact with the menu.
: open / close the menu;open a response dialog;confirm a setting in a
response dialog;enable/disable parameter selection boxes
: navigate up a list; increment a value in a response dialog
: navigate down a list; decrement a value in a response dialog
:navigate down a level in the menu; exit a response dialog (without confirming
a setting)
: navigate up a level in the menu;enter a response dialog
Hint:
lThe menu is hierarchical. Your current location in the menu is shown in the header
lThe menu opens at the location from which it was closed
lAn arrow (>) on the far right indicates that there is a sub-menu, press to access it
lNavigate to the and press to exit parameter menus
How to Display the GUI in a Web Browser
You will need:
lYour instrument
lA computer or mobile device with Wi-Fi® and a web browser installed
Procedure:
1. Go to: System settings >Network settings >Web server display.
2. Select Enabled.
3. Network your devices. One way to do this is:
a. On the instrument, go to: System settings >Network settings >Wi-Fi settings >Wi-Fi mode.
b. Select Act as hotspot.
c. Make note of the hotspot name (example: BK2245-000000) and password.
d. Connect your device to the hotspot as per the manufacturer's instructions.
4. On your mobile device or computer, open a web browser.
5. Type <IP address/display> in the address bar of the browser. When acting as a hotspot, the IP address of the
Get Started:Instrument GUI

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instrument is 10.42.0.1, so you will type <10.42.0.1/display>.
✐Note: You can find the instrument's IP address here:System settings >Network settings. Look under Wi-Fi
settings or Ethernet settings depending on your connection.
Install the Apps
Download the Mobile App
You will need:
liPhone®
See supported iOS versions for current app version in the App Store®, under Noise Partner >Information >
Compatibility.
Procedure:
1. Go to the App Store®.
2. Search for and install Noise Partner.
Updates
You will be informed of updates via the App Store.
Download the PC App
You will need:
lA computer with access to the Internet and a web browser
System Requirements:
lWindows® 7, 8.1 or 10 (64-bit) operating system
lMicrosoft® .NET 4.7.2 framework
Recommended PC:
lIntel® Core™ i5 or better
lSound card
lSolid State Drive (SSD)
l8 GB of memory
lAt least one available USB port
lMicrosoft Office 2016 or later
Get Started:Install the Apps

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Procedure:
1. Go to: https://www.bksv.com/en/Service/downloads.
2. From the list of available downloads, expand B&K 2245 Downloads.
3. Click B&K 2245 Software downloads.
4. Click the link to install the Noise Partner desktop app on your PC.
5. Once the download is complete, double-click Setup.exe to start installation.
✐Note: The file will be placed in a location that is defined by the settings in your web browser.
The PC application will start immediately after installation.
Updates
You will be informed of updates via the application.
Local Connections
A local connection is a connection to a local area network (LAN). It is the simplest way to connect the apps to the instru-
ment. Typically, the network will be your office or home network, but you can also use the instrument to create a hot-
spot to which you can connect devices while you are out in the field.
Once the instrumentand the device running the app are using the same network, they can communicate. You will use
Wi-Fi®, Bluetooth® and Ethernet in varying combinations to enable communication between devices.
✐Note: The mobile app and PC app do not connect to one another, the apps only connect to the instrument.
Join your Local Network
Connect all devices (instrument, mobile device and PC) to your local network so that they can communicate with one
another. Connect the mobile device and PC as per the manufacturer's instructions. Connect the instrument using one of
the following options:
lUse an Ethernet connection:
lConnect the instrument to your PC using a USB-C to USB-A cable
lConnect an Ethernet cable to the Instrument using a USB-C to Ethernet adaptor
lPlace the instrument on the desktop base station (an optional accessory that provides power and a net-
work connection to the instrument)
lUse a wireless connection:
a. Press briefly to open the menu.
b. Go to: System settings >Network settings >Wi-Fi settings >Wi-Fi mode.
c. Select Connect to network.
Get Started:Local Connections