Information Library & Software Downloads

AuditStore - Data verification for your noise measurements

The doseBadge is the original wireless personal noise dosemeter.

It is the ideal tool to carry out occupational and industrial hygiene noise measurements and provides a unique solution to these applications.

Combining an innovative design with simple, robust and reliable operation, the doseBadge weighs only 51g (1.8oz).

With no cables, controls or displays, the doseBadge can be worn in areas where there is a risk of damaging traditional style units or where there is a risk of tampering.

MV:200EH High Level Noise Measurement Microphone for the optimus sound level meters

The CR:306 is a general purpose digital sound level meter which meets the full requirements of IEC 61672 to Class 2. The instrument has ‘F’ (Fast) response and both ‘A’ and ‘C’ frequency weightings. In addition facilities are provided to hold the maximum reading occurring during the measurement period.

Datasheet for the optimus yellow Sound Level Meters

Datasheet for the optimus red sound level meters

Datasheet for the optimus green sound level meters

The Safety Officers Measurement Kit is a combination of a Sound Level Meter and the doseBadge Noise Dosemeter

The CR:514 and CR:515 are high performance acoustic calibrators designed for the field and laboratory calibration of sound level meters and other noise measurement equipment. The units are simple to operate and meet the requirements of the latest IEC 60942:2003 standard for Acoustic Calibrators with performance to Class 2 (CR:514) and Class 1 (CR:515) .

Datasheet for the Sound Sign Noise Activated Warning Sign

The CR:261S is a Class 1 Sound Level Meter that has been designed to meet the requirements of ISO 5130:2007 and §29 StVZO for the noise testing of motor vehicles.

The CR:260A Series of Sound Level Meters are suitable for a wide range of applications.

From Noise at Work Risk Assessments to Vehicle Noise Testing to Environmental Noise Measurements, the CR:260A Series provides a solution.

The CR:800B Series is a range of high performance Sound Level Meters that provide the functions and features demanded by modern measurement standards and guidelines, while being designed specifically for ease of use.

The CR:800A Series is a range of high performance Sound Level Meters that provide the functions and features demanded by modern measurement standards and guidelines, while being designed specifically for ease of use.

The CR:260 Series of Sound Level Meters are suitable for a wide range of applications. From Noise at Work Risk Assessments to Vehicle Noise Testing to Environmental Noise Measurements, the CR:260A Series provides a solution.

The CR:720B Sound Level Meter is a simple to use noise measurement tool that has been designed to meet the requirements of the OSHA occupational noise regulations and for use in areas where this method of oise exposure assessment is used.

The CR:700B Series is a range of data logging Sound Level Meters and Noise Dosemeters

The CR:800C Series is a range of high performance Sound Level Meters that provide the functions and features demanded by modern measurement standards and guidelines, while being designed specifically for ease of use.

From Noise at Work Risk Assessments to Vehicle Noise Testing to Environmental Noise Measurements, the CR:800C Series provides a solution.

NoiseTools for the optimus sound level meters. Compatible with Windows XP, Vista & Windows7 (32bit & 64bit)

Compatible with Microsoft Windows XP, Vista & Windows 7. Includes drivers for 32bit and 64bit versions of Windows 7.

Compatible with Microsoft Windows XP, Vista & Windows 7. Includes drivers for 32bit and 64bit versions of Windows 7.

32bit & 64bit drivers for use with RC:110A Reader Units manufactured after 1st July 2009

Noise exposure legislation, designed to protect the hearing of employees and prevent noise nuisance, is becoming tougher and more widespread.

Cirrus Research plc provides a range of noise measurement instruments which have been designed to provide noise measurement solutions. In particular, the doseBadge Personal Noise Dosemeter is widely used in the Petrochemical and Mining industries where the robust design, ease of use and compliance with standards is unique.

This article looks at some of the issues and challenges companies are faced with when considering noise exposure measurement, reporting and management.

The increasing awareness of the public of environmental issues such as CO2 emissions, carbon footprints and waste recycling has brought the issue of environmental noise to the fore.

Many of the demands of modern society result in the creation of noise sources such as larger airports, additional power stations and higher road traffic levels.

This article reviews some of the issues surrounding the selection of noise monitoring equipment for permanent environmental measurements.

Noise legislation, designed to protect hearing and prevent noise nuisance, is becoming tougher and more widespread.

It is a response to our increased understanding of the damage that noise can do to hearing, and the negative impact it can have on quality of life in the wider community. It has resulted in a growing need to measure noise and rising demand for noise measurement equipment.

However in order to gather accurate and meaningful information about noise levels in your workplace, or the impact you might be having on your neighbours, it is essential that you invest in the right measurement equipment for the task in hand.

This article aims to provide advice on how to choose the best noise measurement tools for your application, and outlines one or two issues for consideration after the equipment has been purchased.

The construction industry is a major source of pollution,responsible for around 4% of particulate emissions, more water pollution incidents than any other industry, and thousands of noise complaints every year.

This article looks at some of the issues of noise levels in the construction industry and suggests some simple measures which can help site managers and construction companies to manage their noise levels.

Benutzerhandbuch für optimus Schallpegelmesser v2.0 (DE)

Optimus Schallpegelmesser Benutzerhandbuch Teil B Technische Daten Das (DE)

Windshields fitted to outdoor measuring microphones serve a dual purpose - to reduce wind-generated noise, and to protect the delicate microphone from damage by environmental factors such as rain, ice and dust. However, the presence of a windshield inevitably affects the directional and frequency responses of the measuring system.

This paper presents results of measurements on the directional and frequency responses of a selection of windshield types under a variety of climate conditions such as rain and ice, and after typical wear such as bird damage and sunlight degradation.

The paper concludes with remarks on the potential for deviations in measurement performance due to the windshield when carrying out real-world environmental noise measurements.

If you are upgrading your PC to Windows 7 and you are using a USB connection to download measurements, you may need to update the drivers to allow your software to communicate with your instrument.

The information in this Technical Note covers the main instrument ranges and software packages and the steps needed to upgrade or update existing drivers.

the Measurement Newsletter - Issue 01 Winter 2012

Cirrus Research helps The Banks Group to keep at the fore-front of noise measurement

Cirrus helps VOSA monitor and manage occupational noise levels with the optimus red sound level meter.

Cirrus Research’s doseBadge provides the perfect solution for dB Consultation

ZL:813 RS232 Output Cable for CR:800C

ZL:176 Optimus 12v Battery pack cable 2m to tinned ends with inline fuse

ZL:175 Optimus PC cable, 18-way to RS232 9-pin D female, 1m

ZL:181 Optimus PC cable, 18-way to RS232 9-pin D female with 12V Power Input 2.1mm jack, 1m

ZL:180 Optimus Modem cable, 18-way to RS232 9-pin D male with 12V Power Input 2.1mm jack, 1m

ZL:185 Optimus AC output cable, 18 way to Phono, 1m

ZL:171 Optimus power input cable, 2.1mm Power Jack, 2m

ZL:182 Optimus Fujitsu Printer cable, 18-way to multiway, 1m

ZL:173 Optimus DPU-414 Printer Cable, 18 way to 9 way D male, 1m

ZL:174 Optimus AC & DC Output, 18 way to 2 x Phono, 1m

ZL:814 Multi IO Cable (DC Power in, AC Out, RS232) for CR:800C