Noise, vibration & dust monitoring

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Frequently asked questions

Noise Monitor

How do I activate the audio capture feature?


The audio capture is an additional option CA can activate remotely at an extra fee – this applies both to purchase and hired units.The option gives you the opportunity to determine what has caused exceedances by listening to the actual recording.




What does all the data mean?


In the Sonitus cloud there are 3 different ways to display the data. Charts | The chart view will give you a level versus time graph of your readings. The parameters displayed are LAmax, LA10, LAeq and LA90. For construction & demolition we are generally only interested on the LAeq values which is an average noise level over a certain time period. The chart shows short time interval, typically 5, 10 or 15 minutes. Calendar | The calendar view will give show a monthly overview of daily averages based on the alert setup. Standard the daily average of the LAeq,10 hour from 08.00 to 18.00 O’clock is setup. The calendar view is an easy way to report your data. Grid | The grid view will display all the raw data in a table.




What are the power options for the Sonitus System?


The Sonitus system usually is powered by 110v or 240 mains power. We also offer battery or solar power options at additional costs. Please see brochure below.




What regulations do I need to comply with?


Generally, the standard limits come from the British Standard for Construction & Demolition, the BS 5228 part 1 which what Campbell Associates sets up as default. See example below. Limits can also be agreed by the council or mentioned in a code of practice. Please click here for the code of practice for construction & demolition per council in London. Limits can also be agreed with the council via a Section 61 – for more information click here.




What kind of on-site servicing is required?


The Sonitus noise monitor does not require any on-site service. There are several self-checks such as the connectivity alert to notify the user when the unit is not running. Deviating results generally are noticed by our supplier – such as a flat reading when the microphone cable is cut off.




How and where can the monitor be mounted?


The monitor can be fixed on the hoarding, (brick) wall, scaffolding or a tripod. General rules for fixing the units are as follow: Microphone needs to be positioned in free field to avoid reflection (typically just above hoarding); The cabinet weighs 3.8 KG and generally and can be fixed with 2 screws. The microphone usually is fixed with an L-bracket with needs 2 screws. Monitors are generally fixed in locations to protect sensitive objects such as residential buildings, hospitals or schools.




My monitor is not online?


The Sonitus system is a very reliable noise monitor that is just plug & play. No power means no data, please check the following steps to see if my monitor is connected to power. Is the green LED light flashing on the unit? You can find the green LED light under the unit when opening the cabinet. When the unit is powered up the Wi-Fi network will be visible. Go to settings, connections, Wi-Fi on any mobile device. If a network named ‘Sonitus (serial number)’ appears the unit is powered up and running. A plugged-in unit does not mean it is connected to ‘live’ power. Please test the power socket by applying another working tool. If the unit still does not appear online, please contact Campbell Associates.





Vibration Monitor

Set-up Guide for the AVA M80 or M60 Vibration Monitor


AVA M80 SETUP GUIDE FLOOR AVA M80 SETUP GUIDE WALL AVA M60 SETUP GUIDE




How often does the unit need calibration?


The AVA vibration monitor does not need any on-site calibration. Biennial traceable calibration is recommended and can be completed at CA’s lab in Essex – costs do apply.




What are the wave forms and how do I activate them?


Wave forms are free of charge and can be setup by notifying CA. The wave forms give detailed information about the triggered event. The actual wave form of the triggered event can be plotted, and the dominant frequency will be displayed.




What does all the data mean?


In the Sonitus cloud there are 3 different ways to display the data. Charts | The chart view will display a level versus time graph of your readings. The parameter displayed is Peak Part Velocity in mm/s in 3 different directions (trans, vert, long). Calendar | The calendar view will show a monthly overview of the highest reading of that day. The calendar view is an easy way to report your data by using the windows snipping tool. Grid | The grid view will display all the raw data in a table.




What are the power options for the AVA Vibration monitor?


Standard the system runs on 6 d-cell batteries which last up to 8 months – please only use non rechargeable 1.5v batteries. Systems that are located indoors can be applied to mains power – this option is not IP rated and additional costs are applicable.




What regulations do I need to comply with?


Generally, the standard limits come from the British Standard for Construction & Demolition, the BS 5228 part 2 which is what Campbell's set up as default. Click here for more information on vibration limits. Limits can also be agreed by the council or mentioned in a code of practice. Please see click here for code of practice for construction & demolition per council in London.




What kind of on-site servicing is required?


The monitor does not require any on-site service. Only the batteries need to be changed when the voltage drops below 7.5V. Alerts will be sent out to users 3 times per week as soon as the voltages drops. You should change the batteries on time to avoid any unplanned outages. To change the batteries please follow the steps in this training video. IMPORTANT
- Units having a voltage below 7.5 volts will have problems trying to make a mobile connection due to low transmission power.
- Units having a voltage below 5.5 volts will have problems in working correctly and may lose their firmware/file settings and will require re-streaming. Repair cost may be involved.

DO NOT leave units, even in storage, without batteries.




How do I operate the system & what do the buttons mean?


The AVA vibration system is a very reliable vibration monitor that is straight forward to operate. START/STOP key | Press this button to start or stop the measurement. To start: Just press the button once and wait until the LED light flashes slowly – this indicates the measurement is running. To Stop: Hold the button for 5 to 10 seconds until the LED is switched off. Wait approximately 2 minutes until all the lights are switched off to relocate or decommission the unit. Connection key | When pressing the connection key, the unit will look for signal and after establishing connection it will show the signal strength. The unit will only stay connected to send data or setting changes through. Battery Key | By pressing this button the unit will show if there is still enough voltage left to start the measurement. It will not indicate how long the unit can still be used. After installing the unit – see below – press the START/STOP key and wait till the LED light is flashing slowly. The measurement has now started.




My vibration monitor is not online?


The AVA vibration monitor uploads the data once per day or when the unit is triggered. The trigger level is not the same as the alert level. Trigger level | Level to be exceeded for the unit to connect to upload the data outside the standard upload period. Alert level | Level to be exceeded for Sonitus Cloud to send an alert via email or txt to users. It is therefore normal the status colour on the Sonitus Cloud will change colour during the day. If the status light shows RED the unit has typically not uploaded in time. Please follow the following troubleshooting steps: The battery voltage can be seen when clicking on the unit in the Sonitus Cloud. If the voltage is below 7.5 the batteries must be changed asap. When opening the peli-case of the unit the START/STOP LED light needs to be flashing slowly which indicates the measurement is running. To push the data through press the connect key and wait until the signal strength appears. If the unit still does not appear online, please contact Campbell Associates.




What are the blink modes?


This useful tutorial from AvaMonitoring will explain what each light means and how they work.




How to start a measurement on the AVATrace?


This useful tutorial from AVA monitoring will show you how to start a measurement on the AVATrace M60 and can be applied to the M80.




Change the battery on the AVATrace


This useful video will explain how to change the battery pack on the AVATrace M60 or M80.





Dust Monitor

Can I add gases?


Yes – the dust sentry & the dust profiler have the option to add the following gasses. NOx O3 VOC Alternatively the AQS 1 has this feature built in already.




Can I add a weather station?


Yes – anemometers for windspeed and wind direction can be added to the dust monitor at an additional fee. The measured data will be displayed in the grid. Free weather data is also available in the calendar view which is pulled in from a local weather station. The coordinates need to be added to the monitor to enable this.




What does all the data mean?


In the Sonitus cloud there are 3 different ways to display the data. Charts | The chart view will display a level versus time graph of your readings. The parameter displayed is Particulate Matter uq/m3. Depending on what unit is used PM1, PM2.5, PM10 and TSP can be logged. Calendar | The calendar view will show a monthly overview of the daily PM10 averages. The calendar view is an easy way to report your data. Grid | The grid view will display all the raw data in a table.




What are the power options for the Aeroqual dust monitor?


The Aeroqual dust monitor currently only runs on 110v or 240v mains power.




What regulations do I need to comply with?


Generally, the standard limits come from the World Health Organisation recommendations which is what CA sets up as default. Click here for more information on dust limits. Limits can also be agreed by the council or mentioned in a code of practice. Please see click here for code of practice for construction & demolition per council in London.




How often does the unit need calibration?


Calibration can be done at our lab in Essex and is biennial. There are 2 different ways of calibration; Verification | the dust monitor is placed next to a reference stations for 7 days to confirm it operates within the allowed tolerance. Engine swop | the engine will be swopped with a calibrated engine. This can be completed on site which makes it the quickest but more expensive way.




What kind of on-site servicing is required?


The dust monitor requires regular on-site service. Depending on the area and measurement results this is recommended every 3 to 6 months. This can either be completed by the client or by CA. Standard site service requires; Flow check | to make sure the correct airflow is going through the system. Leak check | to make sure there are no leaks in the system. Filter change | Replacing both the purge and sample filter. Good servicing will increase the lifespan of the pump and engine. Book an engineer here.




How and where can the monitor be mounted?


The monitor can be fixed on the hoarding, (brick) wall, scaffolding or tripod. General rules for fixing the units are as follow: - Best practical mean; - The inlet of the dust monitor needs to be fixed in free field which means it needs to be just above the hoarding or 1.5 meter away from any reflective surface. - Monitors are generally fixed in locations to protect sensitive objects such as residential buildings, hospitals or schools.




My monitor is not online?


The Aeroqual dust monitor is a very reliable dust monitor that is just plug & Play. When units don’t appear to be online it mostly is a power related issue. Please see below standard troubleshoots: When the unit is powered up the WiFi network will be visible. Go to settings, connections, Wi-Fi on any mobile device. If a network named ‘DS (serial number)’ appears the unit is powered up and running. When opening the cabinet, the LED lights of the PC and modem are lit up. When the unit is powered up the pump is running which is clearly audible. Occasionally it happened the fuse has popped out. The fuse can be found in the left bottom and can just be pushed back in. If all above is working accordingly it could be that the SIM card is kicked off the mobile network. Just unplug the unit and apply it back to mains to reboot the system. If the unit still does not appear online, please contact Campbell Associates.




Zero or negative values on my dust monitor


Usually when you see zero values they are negative values being truncated to zero. It is possible for negative and zero values to occur when you are measuring low levels of dust and it is not necessarily a fault with your system. A dust monitor needs to set a ‘zero level’ for the dust level to identify the measurement floor of the system. To do this a purge pump is used, which reverses the flow of the air going through the measuring optics. The purpose of this is to clear any dust particles from the system before a zero measurement is taken. The zero cycle is automated by the system and is usually performed every 12 or 24 hours. If there is a problem the cycle can be activated manually and remotely. When measuring low levels of particulate/ dust this could be close to or below the ‘zero value’ measured for the system. These levels are reported as Zero. Continued zero values which are inconsistent with site conditions could indicate a fault on the system and you should contact Campbell Associates. Likely causes are a dirty purge filter which needs changing, purge pump failure or problem with the measurement engine.




How to perform a flow check?


This user guide will take you through step by step how to perform a flow check on an Aeroqual Dust Sentry.





Sonitus Cloud

How do I navigate to the Sonitus Cloud?


On the Sonitus cloud there are several tutorials which will show how to navigate through the interface. Please go to ‘Support’ and click on Tutorial when logged in to the Sonitus Cloud.





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