Class 1 & Class 2 Acoustic Calibrators
IEC 60942: 2017 Class 2 & Class 1 Performance
PTB Type Approval for CR: 514 and CR:515 Class 2 & Class 1 acoustic calibrators
LNE Type Approval for CR:515 Class 1 acoustic calibrator
94dB sound pressure level output for CR:514 and CR:515 Class 1 and Class 2 acoustic calibrators
114dB sound pressure level output for CR:518 Class 2 acoustic calibrator
Dual-level 94dB and 114dB sound pressure level outputs for CR:516 and CR:517 Class 1 and Class 2 acoustic calibrators
Suitable for use with standard 1/2" microphone capsules
1/4" Microphone adaptor available
Automatic power switch off with user override giving longer battery life
Robust case with ergonomic design
Class 1 and Class 2 Sound Calibrators with Type Approvals
Cirrus Research manufactures a range of acoustic calibrators (often referred to as sound calibrators) and adaptors suitable for the field calibration of sound level meters, noise dosimeters and other noise measurement instruments.
Our current range of acoustic calibrators comprises:
CR:514 Class 1 Sound Calibrator to IEC 60942:2003 Class 2 with PTB Type Approval and 94dB @ 1kHz sound pressure level output
CR:515 Class 1 Sound Calibrator to IEC 60942:2003 Class 1 with PTB and LNE Type Approval and 94dB @ 1kHz sound pressure level output
CR:516 Class 2 Sound Calibrator to IEC 60942:2017 Class 2 with 94dB & 114dB @ 1kHz sound pressure level output
CR:517 Class 1 Sound Calibrator to IEC 60942:2017 Class 1 with 94dB & 114dB @ 1kHz sound pressure level output
CR:518 Class 2 Sound Calibrator to IEC 60942:2003 to Class 2 with 114dB @ 1kHz sound pressure level output