Cirrus Optimus+ User manual

Quick Start Guide
Using Bluetooth®and
dBAcve

Optimus sound level meter - Bluetooth and dBActive quick start guide
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About this quick start guide
• The instrucons in this user manual refer to the operaon of Cirrus Research plc
Opmus+ sound level meters with version 5.0 or higher of the rmware
• Where the terms ‘Opmus+’ or ‘Opmus’ are used, it refers to all variants within
the Opmus+ range of instruments, including the Opmus+ Yellow (CR:150 series),
Opmus+ Red (CR:160 series), Opmus+ Green (CR:170 series) and Opmus+ Purple
(CR:190 series)
• The dBAcve mobile applicaon must be downloaded from either Google Play
(Android devices) or the App Store (iOS devices) in order for the funcons outlined in
this quick start guide to be ulised
• Full technical details for the Opmus+ range of instruments can be found on the Cirrus
Research website at www.cirrusresearch.co.uk/library/datasheets/
• For full operaonal instrucons, please consult the instrument handbook that was
supplied with your Opmus+
Please note: the screenshots that have been used for the purposes of demonstrang the
operaon of Bluetooth and the dBAcve smartphone applicaon on the Opmus+ have
been taken from a mobile device that runs the iOS mobile operang system. Screens and
menus may appear dierently for devices running the Android operang system.

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Copyright
Copyright © Cirrus Research plc 2010-2019
All rights reserved.
You may re-use this document/publicaon (not including the Cirrus Research plc logo and
other product logos) free of charge in any format for research, private study or internal
circulaon within an organisaon. You must re-use it accurately and not use it in a misleading
context.
You must not modify text, images or illustraons in any way. The material must be
acknowledged as Cirrus Research plc copyright and you must give the tle of the source
document/publicaon.
Where any third-party copyright material is idened you will need to obtain permission
from the copyright holders concerned.
Trademarks
Cirrus Research plc, the Cirrus Research plc Logo, doseBadge, DOSEBADGE, Opmus, the
NoiseTools Logo and the Noise-Hub Logo are either registered trademarks or trademarks of
Cirrus Research plc in the United Kingdom and/or other countries. Microso and Windows
are registered trademarks of Microso, Inc. The Bluetooth® word mark and logos are
registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Cirrus
Research is under license. Other trademarks and trade names are those of their respecve
owners.
Updates
In the interests of connuous product improvement, Cirrus Research plc reserves the right
to make changes to product specicaons without noce.
To learn about the latest updates that have been implemented into this product and to
download the most current version of this user manual, visit our website at
www.cirrusresearch.co.uk
Version 1 Q1 2019

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Contents
1. Downloading dBActive and connecting to your Optimus+.............................
2. Using your Optimus+ with your mobile device through dBActive.................
2.1 Viewing live data...................................................................................................
2.2 Starting and stopping a measurement............................................................
2.3 Reviewing measurement data.........................................................................
2.4 Changing your instrument’s settings..............................................................
2.5 Viewing information about your instrument................................................
5
7
7
9
10
11
13

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1 DownloadingdBAcveandconnecngtoyour 
 Opmus+
Search for dBAcve on either the App Store
(iOS devices) or Google Play (Android devices).
Download the app to your device.
Enable Blutooth on your Opmus+ instrument.
This can be found by navigang to the
‘Advanced Opons’ menu.
Open dBAcve on your device. Press ‘Scan for
devices’.
Once your instrument has been discovered,
press on its name to connect to it.

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Enter the code from your Opmus+ into your
mobile device and press ‘Pair’.
Before your Opmus+ can connect to your
mobile device, you will be asked to input a code
that will be displayed on the Bluetooth menu
screen.
Your Opmus+ will now be paired with your mobile device. You will see the default home
screen on the dBAcve app, which displays live noise measurement informaon. From this
screen, you will be able to navigate around the app, which will be described in the coming
pages.

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2 UsingyourOpmus+withyourmobiledevicethrough
 dBAcve
This screen is the default home screen for
dBAcve and displays live noise data for a
number of parameters, each of which can be
changed. Press the arrow on the value you wish
to change. A menu will appear allowing you
to select the value you wish to see (see image
below).
2.1 Viewinglivedata
One of the key features of dBAcve is the ability to view live noise data remotely. This
informaon can be viewed in a number of dierent ways, which are outlined below:
2.1.1 Using the overview screen
Please note: some noise parameters are unavailble on certain variants of the Opmus+.

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2.1.2 Using the live data screen
This screen displays live noise data for any two
chosen parameters (which can be changed by
pressing the arrows on the chosen parameter).
The graphs refresh every second and provide a
visual representaon of the noise levels where
your Opmus+ is measuring.
2.1.3 Using the octaves screen
This screen displays live data for 1:1 octave
bands.

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From the overview screen, choose either ‘Start
measuring’ or ‘Start measuring/audio’ to begin a
measurement. If you choose ‘Start measuring/
audio’, the measurement will include an audio
recording of the noise. If you choose ‘Start
measuring’, audio will not be recorded.
Please note: audio recording can be switched
on/o manually during a measurement using
the opon above the start buon. Audio
recording is only available on certain variants of
the Opmus+.
2.2 Starngandstoppingameasurement
As well as being able to view live noise data, dBAcve allows you to start and stop noise
measurements remotely, meaning that your Opmus+ can be used in potenally hazardous
and/or dicult-to-access areas.
2.2.1 Starngandstoppingameasurement
When a measurement is in
process, the red start buon
changes to a green stop
buon. Press this to end
your measurement.
If you need to highlight a specic event during
a measurement for when you come to review
your data in the NoiseTools analysis soware
(supplied with your Opmus+), press ‘Mark
measurement’ when a measurement is in
process.
2.2.2 Markingameasurement
A conrmaon box will appear at the boom
of the screen to let you know that the
measurement has been marked.

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This screen displays the data for all main
noise parameters. You can cycle through
measurements by using the arrows at the
boom of the screen.
2.3 Reviewingmeasurementdata
The ‘Measurements’ screen allows you to review previous measurement data for the
connected instrument. This includes both measurements that have been made on dBAcve
and those that have been made navely on your Opmus+.
2.3.1 Reviewingmeasurements
If you’re experiencing
issues downloading your
measurement data or the app
is displaying measurements
from a previously connected
instrument, press ‘Retry’
to refresh the informaon
displayed.
If you want to share measurement data, press
the ‘Share’ buon.
2.2.2 Sharingmeasurementdata
A popup box will appear lisng the opons
available. The measurement data will be shared
as a text-only list, which you will then be able
to edit as you wish.
Please note: sharing opons will vary depending
on the operang system of your device and the
third-party applicaons you have installed.
Please note: you must ensure that any
measurement data you wish to keep is either
stored on your Opmus+ or downloaded to
a PC using NoiseTools. Measurement data is
not permenantly stored in dBAcve and will
be overwrien once a dierent instrument is
connected to the app.