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CR:514 & CR:515 Acoustic Calibrator User Manual 

Page 1 

CR:514 & CR:515 

Acoustic Calibrator 

User Manual 

This manual, the software to which it relates, the 

program code and drawings are all: 

© Copyright Cirrus Research plc 1989-

2021

Summary of Contents for CR:514

Page 1: ...515 Acoustic Calibrator User Manual Page 1 CR 514 CR 515 Acoustic Calibrator User Manual This manual the software to which it relates the program code and drawings are all Copyright Cirrus Research plc 1989 2021 ...

Page 2: ...search plc No liability is accepted for any inaccuracies or omissions in this manual although due care has been taken to ensure that is it complete and accurate as possible Accessories supplied by Cirrus Research plc have been designed for use with the instrumentation manufactured by Cirrus Research plc No responsibility is accepted for damage caused by the use of any other parts or accessories In...

Page 3: ...a Sound Level Meter 5 Background Noise 5 Stabilisation 5 Changing the Battery 6 Battery type 6 Specification 7 Technical Information 8 Free Field Correction 9 Microphone Correction Values 9 Example 9 EU Declaration of Conformity 10 Type Approval Certification 11 Product Guarantee Extended Warranty 13 Cirrus Research Offices 15 ...

Page 4: ...ry power To switch off the calibrator manually press the power button again and the indicator will extinguish to show that the unit is switched off Permanent on Mode For some applications there may be a need to have the calibrator switched on continuously To allow for this the calibrator can be turned on by pressing and holding the power button for three seconds Release the button and the indicato...

Page 5: ...t modern Sound Level Meters have electronic calibration with the level adjusted automatically Adjust the Sound Level Meter to the correct level where applicable When correcting the value generated by the calibrator a correction for the type of microphone capsule may need to be applied see Appendix 2 Background Noise In order for the calibrator to operate as intended the ambient acoustic noise leve...

Page 6: ...st the spring at the other end Ensure that the battery is inserted with the correct polarity with the negative terminal at the contact with the larger cutout Battery type The battery should be an alkaline battery not an ordinary dry cell The battery is 9 volts when new and will operate the calibrator down to 6 4 volts When the battery voltage is below 6 6 volts but above 6 4 volts the power LED wi...

Page 7: ...than 2 Operating Humidity 25 to 90 Relative Humidity Operating Static Pressure 65 kPa to 108kPa Operating Temperature 10o C to 50o C Storing Temperature 20o C to 60o C Effective Volume 6 19 cm3 0 2 cm3 Cavity Diameter 0 525 inch Battery 1 x 9v 6F22 Neda 1604 Battery Life Approx 15 Hours Continuous Use Battery Voltage 9v Nominal 10v Maximum 6 4v Minimum Weight with Battery 185g Dimensions 135mm x Ø...

Page 8: ...tion after exposure to contact discharges up to 4kV and air discharges up to 8kV for both positive and negative voltages relative to earth ground The calibrator conforms to IEC 60942 2003 for a modulated root mean square electromagnetic field strength of 10 V m The maximum susceptibility to power and radio frequency fields is with the cavity facing away from the emitter with the battery compartmen...

Page 9: ...ch plc Calibration corrections are listed below for the Cirrus Research plc Capsules and three microphone capsules commonly used in Calibration Laboratories Microphone Correction Values Microphone Type Calibration Correction Effective Calibration Level MK 202 0 3dB 93 7 dB MK 215 0 3dB 93 7 dB MK 216 0 3dB 93 7 dB MK 226 0 3dB 93 7 dB MK 224 0 3dB 93 7 dB B K 4134 0dB 94 0 dB B K 4180 0dB 94 0 dB ...

Page 10: ...d accessories According to EMC Directive 2014 30 EU Low Voltage Directive 2014 35 EU RoHS Directive 2011 65 EU meet the following standards EN 61000 6 3 2007 A1 2011 Electromagnetic compatibility EMC Generic standards Emission standard for residential commercial and light industrial environments EN 61000 6 1 2007 Electromagnetic compatibility EMC Generic standards Immunity for residential commerci...

Page 11: ...CR 514 CR 515 Acoustic Calibrator User Manual Page 11 Type Approval Certification ...

Page 12: ...CR 514 CR 515 Acoustic Calibrator User Manual Page 12 ...

Page 13: ...strument is routinely verified by Cirrus Research plc or an Authorised Service Calibration Centre every year after the initial warranty period the warranty is effectively continuous to a maximum of fifteen 15 years from the original date of purchase There will be a charge for the verification or calibration of the equipment 3 Buying back into the warranty Where the warranty has expired the custome...

Page 14: ...s from the use of the product in conjunction with products or materials not reasonably contemplated by Cirrus Research plc e No fault is found with the product 11 The initial guarantee or extended warranty does not extend to products or materials not supplied by or manufactured by Cirrus Research plc Consumable items including dry cell and alkaline batteries are not covered by the initial guarante...

Page 15: ...rus Research authorised distributors and agents are also available from the Internet Web site at the address shown below Main Office Cirrus Research plc Acoustic House Bridlington Road Hunmanby North Yorkshire United Kingdom YO14 0PH Telephone 44 0 1723 891655 Fax 44 0 1723 891742 E mail sales cirrusresearch co uk Web Site www cirrusresearch co uk Germany Cirrus Research plc Deutschland Arabella C...

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