B&K 2245 User manual

Enviro Noise Partner
with B&K 2245
User Guide
for Version 1.0
BN 2375–11

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TABLE OF CONTENTS
TABLE OF CONTENTS 3
INTRODUCTION 7
Overview 7
Licences 8
About 8
About the Instrument 8
About the Mobile App 9
About the PC App 10
System Requirements 10
Data Storage 11
Service and Support 11
Contact Information 11
Additional Documentation 12
GET STARTED 13
Hardware Interface 13
Instrument GUI 15
How to Display the GUI in a Web Browser 20
Install the Apps 21
Download the Mobile App 21
Download the PC App 21
Local Connections 22
Join your Local Network 22
Use the Instrument as a Hotspot 23
Remote Connections 23
How to Connect Remotely via an IPv4 Address 24
How to Connect Remotely via an IPv6 Address 25
Connect the Mobile App to the Instrument 26
Connect the Mobile App to the Instrument 26
How to Add the Instrument Manually 27
How to Disconnect Devices 27
Troubleshooting Connection Problems 28
Mobile App GUI 28
Charge the Battery 35

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Status 36
Power Consumption 36
SET UP THE INSTRUMENT 37
Regional Settings 37
How to Change Regional Settings 37
About the Settings 37
Input Settings 38
How to Set up the Input 38
About the Microphone 38
About Sound Fields 39
Measurement Control 39
How to Set up Measurement Controls 39
About Logging Mode 39
About Measurement Time 40
About Back-erase Mode 41
Measurement Parameters 41
How to Set up Broadband Parameters 41
Spectrum Parameters 47
Statistical Parameters 50
Audio Recording 51
How To Record Audio 51
Display Settings 51
How to Change Display Settings 52
About Screen Settings 52
About Light Ring Brightness 52
About Measurement Display Settings 52
About Data View 53
Voltage Output 54
Lock the Settings 54
CHECK THE CALIBRATION 55
How to Perform a Calibration Check 55
Calibration History 57
Calibration Settings 57
Automatic Calibration Check 57
Calibration Reminder 57
Table of Contents:

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Custom Calibration 57
CREATE A PROJECT 58
How to Delete a Project 58
Add Past Measurements 58
Set up Markers 60
MEASUREMENTS 63
Make a Measurement 63
Data explorer 64
Data Management 64
Use the App to Make a Measurement 65
Place Markers 65
How to Add a Marker 66
How to Remove a Marker 66
ANNOTATIONS 67
How to Make Annotations 67
How to Attach Unattached Annotations Using the Mobile App 68
TRANSFER DATA 69
How to Import Data to the PC App 69
How to Add an Instrument using Its IP Address 71
How to Store a Backup 71
Network Storage 71
USB Stick 72
USE THE PC APP 73
PC App GUI 73
Import a Project 78
How to Import a Project 78
Import from a Backup 80
Add an Instrument Using its IPAddress 80
Create a Project 81
Import Measurements 81
How to Import Measurements 82
Import from a Backup 83
Add an Instrument Using its IPAddress 84
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Examine the Project 84
The Measurement Window 84
The Spectrum Window 87
The Graph View 88
The Table View 88
Review Annotations 88
Work with Markers 89
Export a Project 91
How to Export a Project 91
About Master Files 92
TERMINOLOGY 94
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 help guide you through set up. It also
enables you to document the measurement with photos, video, 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.
Introduction:Licences

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The instrument performs frequency analysis of either 1/1- or 1/3-octave spectra (Leq, Lmax, Lmin) with one of the avail-
able frequency weightings (A, B, C, Z) and time weightings (F, S).
The instrument takes single measurements. In other words, the instrument calculates a single value for each measured
parameter for the total measurement time.
The instrument takes logged measurements. In other words, it has a logging mode that can average and log intervals of
broadband and/or spectral data to obtain a profile of the total measurement with logging intervals between 1 s and 1
min.
The instrument performs statistical analysis on either LAeq, LAF or LAS with calculation of 5 user-defined percentile
levels.
The instrument takes audio recordings.
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 Enviro Noise Partner:
lSet up the instrument for measuring
lControl the instrument remotely
lAnnotate measurements (add photos, videos, notes and commentary)
lAdd markers to measurements
lCustomize markers (name and type)
lTrack position and time using GPS
lSee the status of the instrument
lView:
lInstantaneous broadband parameters
lTotal broadband parameters
l1/3- and 1/1-octave spectra
lLogging profiles
lRecall past data stored on the instrument
Introduction:About

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About the PC App
Functionality of the PC version of Enviro Noise Partner:
lImport projects created with the mobile app from the instrument
lCreate projects from measurements stored on the instrument
lAdd measurements stored on the instrument to an existing project
lCreate custom markers and add them to measurements
lView:
lBroadband levels
lLogging profiles
lStatistical data
lAnnotations (photos, videos, notes and commentaries)
lPlay back recorded audio (digitally gained)
lExport projects for sharing or reporting
System Requirements
The Mobile App
liPhone®
See supported iOS versions for current app version in the App Store®, under Enviro Noise Partner >Inform-
ation >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
Introduction:System Requirements

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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
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]
Introduction:Data Storage

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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.
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, auto-zoom graphs, move cursors and nav-
igate the menu.
Press and briefly to scroll through measurement displays.
Press and briefly to scroll through the parameters for each display.
Press and hold or to move the cursor on the Spectrum and Profile displays.
Press and hold to auto-zoom the Y-axis on the Spectrum and Profile displays.
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), spectrum parameters (Spectrum view, logging pro-
files (Profile 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
Profile view is the main display for logged measurements because it shows the pro-
file of logged broadband and/or spectrum parameters.
Press and hold or to move the cursor in the display. The readout above the
graph shows the location of the cursor and its decibel level. Press and hold to
auto-scale the Y-axis to fit the data.
Spectrum view displays the frequency analysis of spectrum parameters, shown as
decibel (dB) levels by Hertz (Hz).
Press and hold or to move the cursor in the display. The readout above the
graph shows the location of the cursor and its decibel level. Press and hold to
auto-scale the Y-axis to fit the data.
Get Started:Instrument GUI

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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
instrument is 10.42.0.1, so you will type <10.42.0.1/display>.
Get Started:Instrument GUI