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Summary of Contents for Cirrus CR:514
- Page 1 Instrument Handbook CR:514 & CR:515 Single-Level Acoustic Calibrator...
- Page 2 The content of this manual, any illustrations, technical information and descriptions within this document were correct at the time of going to print. Cirrus Research plc reserves the right to make any changes necessary, without notice, in line with the policy of continuing product development and improvement.
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Page 3: Table Of Contents
CR:514 & CR:515 Acoustic Calibrator User Manual Page 3 Contents Contents ........................3 Operation ......................... 4 Switching on the Calibrator ....................4 Permanent-on Mode ...................... 4 Calibrating a Sound Level Meter ..................5 Background Noise ......................5 ... -
Page 4: Operation
Page 4 CR:514 & CR:515 Acoustic Calibrator User Manual Operation Switching on the Calibrator Press the Power button on the end of the Calibrator to switch the unit on. The indicator will illuminate to show that the unit is operating. -
Page 5: Calibrating A Sound Level Meter
CR:514 & CR:515 Acoustic Calibrator User Manual Page 5 Calibrating a Sound Level Meter Push the microphone of the Sound Level Meter into the cavity at the end of the calibrator. Ensure the microphone is fully inserted into the cavity and is past the ‘O’ ring seals. -
Page 6: Changing The Battery
CR:514 & CR:515 Acoustic Calibrator User Manual Changing the Battery The CR:514 & CR:515 acoustic calibrators use a single 9v alkaline battery. This type of battery is known as 6F22 or NEDA 1604. It is also commonly known as PP3. -
Page 7: Specification
CR:514 & CR:515 Acoustic Calibrator User Manual Page 7 Specification Frequency 1kHz ± 1% Sound Level 94dB re 20μPa Standardisation CR:514 - IEC 60942:2017 Class 2 CR:515 - IEC 60942:2017 Class 1 Distortion Less than 2% Operating Humidity 25 to 90% Relative Humidity... -
Page 8: Technical Information
Page 8 CR:514 & CR:515 Acoustic Calibrator User Manual Technical Information The normal mode of operation of the calibrator is with the unit switched on. When the LED indicates the unit is switched on this produces the greatest radio frequency emissions. -
Page 9: Free Field Correction
The correction is typically -0.3dB for ½ inch microphones (making the effective calibration level 93.7dB). The table below shows the correction values for the standard microphones of Cirrus Research plc. Calibration corrections are listed below for the Cirrus Research plc ½" Capsules and... -
Page 10: Eu Declaration Of Conformity
Page 10 CR:514 & CR:515 Acoustic Calibrator User Manual EU Declaration of Conformity Manufacturer: Cirrus Research plc Acoustic House, Bridlington Road Hunmanby, North Yorkshire, YO14 0PH United Kingdom Equipment Description The following equipment manufactured after 1 September 2022: CR:514 Acoustic Calibrator... -
Page 11: Product Guarantee & Extended Warranty
12 months, with the same conditions, for up to 15 years in total. 3. If a product has not been calibrated annually by Cirrus Research or an authorised calibration and service centre, then you may buy back into the warranty scheme for a small fee, plus the cost of calibration. -
Page 12: Cirrus Research Offices
CR:514 & CR:515 Acoustic Calibrator User Manual Cirrus Research Offices The addresses given below are the Cirrus Research plc offices. Cirrus Research plc also have approved distributors and agents is many countries worldwide. For details of your local representative, please contact Cirrus Research plc at the address below. Contact details for Cirrus Research authorised distributors and agents are also available from the Internet Web site at the address shown below. - Page 13 CR:514 & CR:515 Acoustic Calibrator User Manual This page has been left blank intentionally...
- Page 14 CR:514 & CR:515 Acoustic Calibrator User Manual This page has been left blank intentionally...
- Page 15 CR:514 & CR:515 Acoustic Calibrator User Manual This page has been left blank intentionally...
- Page 16 www.cirrusresearch.com sales@cirrusresearch.com...
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