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Cirrus Research
Sound Level Meters

CR:303

CR:274/ 273

CR:800

doseBadge System

CR:303 Sound Level Meter
The CR:303 is a simple, robust Sound Level Meter designed for applications where a quick check of the noise levels is required. The instrument displays Fast Sound Level in dB(A) and has a measurement range of 35dB(A) to 135dB(A). A maximum hold function is also provided to hold the highest reading that the instrument displays. As the CR:303 does not provide measurement of Leq or Peak(C), it is not suitable for compliance with Noise at Work Regulations in the EU, but is ideal for simple checks and assessments.

The CR:303 uses a standard 1/2" microphone capsule and therefore is compatible with the standard Cirrus Research plc Acoustic Calibrators such as the CR:513A.

A range of accessories is available for the CR:303 including windshields and carrying cases. The instrument is also available as a measurement kit

Specification
Measurement Range 35dB(A) to 95dB(A)

60dB(A) to 135dB(A)

Frequency Weighting dB(A)
Time Weighting Fast to IEC 60651
Accuracy Type 2 to IEC 60651
Measurements Sound Level, LAFmax
Display 3 1/2 Digit LCD with Overload
Size 120mm x 70mm x 23mm
Power 6LR61 (PP3 9v)
Weight 220 gms excluding battery

CR:270 Series of Integrating Sound Level Meters
The CR:270 series is a range of instruments designed for the measurement of industrial and environmental noise levels. The main application for the instruments is to measure noise levels for compliance with Noise at Work regulations.

The instrument are capable of measuring Leq (Average Noise Level) and Peak levels, with the parameters being calculated simultaneously. The CR:272 and CR:271 instruments provide the measurement of both A and C weighted levels, allowing the prescription of hearing defenders using the HML method. The CR:274 and CR:273 instruments have the addition of internal octave band filters and dB(Lin), which allow the use of the Octave Band method for the accurate selection of hearing protection.

The units provide a range of features including:

Type 1 or Type 2 versions

Simultaneous measurement of Leq, Peak (C) and SPL

dB(A) for Leq & SPL, dB(C) for Peak

dB(Lin) for Octave Bands on CR:274 and CR:273

AC & log DC Outputs

Maximum Hold for SPL

'F' (Fast), 'S' (Slow) & 'I' (Impulse) response for SPL

Full range of accessories available

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doseBadge Personal Noise Dosemeter
The doseBadge is a unique solution for Personal Noise measurements. The new CR:100B version of the doseBadge provides not only the measurements essential for compliance with Occupational Noise regulations, but with the new RC:100B Reader unit it can store up to 24 hours of LAeq Time History data including Peak(C) and Overload exceedeces. In addition to the new hardware, a suite of software is available to support the new features and functions.

Features
The unique solution for personal noise measurements
Small size and light weight
New doseBadge with Time History data logging
New Reader unit with large backlit display and simple to use keys
No cables or controls reduces the risk of damage, misuse or tampering
Provides the parameters essential for Noise at Work measurements
Simple operation provides effective measurements
Operation & Download of doseBadge controlled via Infra-red link
Rechargeable battery power for doseBadges
System can be expanded by adding doseBadges & Charging units
doseBadges can be programmed to either Q=3 (ISO) or Q=5 (OSHA)
Includes the new dBLink and doseBadge Database software

Applications

Measurement of Personal Noise Exposure
Assessing and Monitoring noise in the workplace
Ensuring compliance with Noise at Work regulations
The doseBadge is a unique solution to the problems associated with the measurement of Personal Noise Exposure. The doseBadge itself has no controls or cables which means that the unit can be used in situations where the wearer is working in confined spaces or where there is a risk of a cable being caught in machinery.

The doseBadge can only be operated (reset, calibrated, started and stopped) using the Reader unit or the Key fob remote control. This dramatically reduces the possibility of the wearer tampering with the unit. The small size and light weight design of the doseBadge also reduces the risk of damage to the unit.

The measurements provided the doseBadge have been designed to allow full compliance with Occupational Noise regulations, whilst giving a simple output that can be easily understood.

The design of the doseBadge allows the case to be much smaller than a conventional dosemeter. This ensures that the movement of the user is not constricted by cables and connectors. The unit has no controls or switches, will all functions controlled by either the RC:100B Reader unit, or by the RC:101A Key fob Controller. The rechargeable battery is sealed within the unit and is charged using the reader unit or by additional charging blocks.
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Up Hi Visibility Clothing Hearing Protection Safety Labels H & S Information P.P.E Fire Safety Gas Detection First Aid Products First Aid Environmental Cirrus Research	Sound Level Meters CR:303 CR:274/ 273 CR:800 doseBadge System	CR:303 Sound Level Meter The CR:303 is a simple, robust Sound Level Meter designed for applications where a quick check of the noise levels is required. The instrument displays Fast Sound Level in dB(A) and has a measurement range of 35dB(A) to 135dB(A). A maximum hold function is also provided to hold the highest reading that the instrument displays. As the CR:303 does not provide measurement of Leq or Peak(C), it is not suitable for compliance with Noise at Work Regulations in the EU, but is ideal for simple checks and assessments. The CR:303 uses a standard 1/2" microphone capsule and therefore is compatible with the standard Cirrus Research plc Acoustic Calibrators such as the CR:513A. A range of accessories is available for the CR:303 including windshields and carrying cases. The instrument is also available as a measurement kit Specification Measurement Range 35dB(A) to 95dB(A) 60dB(A) to 135dB(A) Frequency Weighting dB(A) Time Weighting Fast to IEC 60651 Accuracy Type 2 to IEC 60651 Measurements Sound Level, LAFmax Display 3 1/2 Digit LCD with Overload Size 120mm x 70mm x 23mm Power 6LR61 (PP3 9v) Weight 220 gms excluding battery
CR:270 Series of Integrating Sound Level Meters The CR:270 series is a range of instruments designed for the measurement of industrial and environmental noise levels. The main application for the instruments is to measure noise levels for compliance with Noise at Work regulations. The instrument are capable of measuring Leq (Average Noise Level) and Peak levels, with the parameters being calculated simultaneously. The CR:272 and CR:271 instruments provide the measurement of both A and C weighted levels, allowing the prescription of hearing defenders using the HML method. The CR:274 and CR:273 instruments have the addition of internal octave band filters and dB(Lin), which allow the use of the Octave Band method for the accurate selection of hearing protection. The units provide a range of features including: Type 1 or Type 2 versions Simultaneous measurement of Leq, Peak (C) and SPL dB(A) for Leq & SPL, dB(C) for Peak dB(Lin) for Octave Bands on CR:274 and CR:273 AC & log DC Outputs Maximum Hold for SPL 'F' (Fast), 'S' (Slow) & 'I' (Impulse) response for SPL Full range of accessories available \|Back to Home Page\|
doseBadge Personal Noise Dosemeter The doseBadge is a unique solution for Personal Noise measurements. The new CR:100B version of the doseBadge provides not only the measurements essential for compliance with Occupational Noise regulations, but with the new RC:100B Reader unit it can store up to 24 hours of LAeq Time History data including Peak(C) and Overload exceedeces. In addition to the new hardware, a suite of software is available to support the new features and functions. Features The unique solution for personal noise measurements Small size and light weight New doseBadge with Time History data logging New Reader unit with large backlit display and simple to use keys No cables or controls reduces the risk of damage, misuse or tampering Provides the parameters essential for Noise at Work measurements Simple operation provides effective measurements Operation & Download of doseBadge controlled via Infra-red link Rechargeable battery power for doseBadges System can be expanded by adding doseBadges & Charging units doseBadges can be programmed to either Q=3 (ISO) or Q=5 (OSHA) Includes the new dBLink and doseBadge Database software Applications Measurement of Personal Noise Exposure Assessing and Monitoring noise in the workplace Ensuring compliance with Noise at Work regulations The doseBadge is a unique solution to the problems associated with the measurement of Personal Noise Exposure. The doseBadge itself has no controls or cables which means that the unit can be used in situations where the wearer is working in confined spaces or where there is a risk of a cable being caught in machinery. The doseBadge can only be operated (reset, calibrated, started and stopped) using the Reader unit or the Key fob remote control. This dramatically reduces the possibility of the wearer tampering with the unit. The small size and light weight design of the doseBadge also reduces the risk of damage to the unit. The measurements provided the doseBadge have been designed to allow full compliance with Occupational Noise regulations, whilst giving a simple output that can be easily understood. The design of the doseBadge allows the case to be much smaller than a conventional dosemeter. This ensures that the movement of the user is not constricted by cables and connectors. The unit has no controls or switches, will all functions controlled by either the RC:100B Reader unit, or by the RC:101A Key fob Controller. The rechargeable battery is sealed within the unit and is charged using the reader unit or by additional charging blocks. Back to Home Page\|