CB006 and CB004 Acoustic calibrators Accurate checking of sound level measuring equipment is essential before and after each series of measurements sound calibrators CB006 and CB004 provide a cost effective yet accurate means of achieving this. Both calibrators are portable, user-friendly instruments, which makes them ideal to check sound level meters and dosimeters on the measurement site or in the laboratory. They do not need any corrections for environmental conditions. They may be used with any microphone suitable for closed coupler checking and of ½" diameter. The CB006 and the CB004 generate a sound level of 94 dB (1 Pa = 1 N/m2) and use 1 kHz as testing frequency, eliminating the need for corrections due to frequency weightings, as they are unaffected at this frequency. The CB006 complies with norm IEC 60942:2003 class 1 and the CB004 complies with norm IEC 60942:2003 class 2. The CB006 has been specially designed to test class 1 and class 2 dosimeters and sound level meters and the CB004 to test class 2 dosimeters and sound level meters. Both the CB006 and the CB004 are operated with a single button. When it is pressed, the calibrator generates a tone of 94 dB at 1 kHz. In order to increase the battery life, the calibrator switches off automatically after 5 minutes. It also has a permanent ON mode, to enable it to be used for longer periods of time. Applications • Checking of instruments: • Class 1 and class 2 with 1/2’’ microphone • With any frequency weighting (A, B, C, D or Z ) • In field or laboratory Characteristics • Class 1 and class 2 acoustic calibrator according to IEC 60942:2003 • Portable and very user-friendly: a single checking frequency; 1 kHz, and a single sound level of 94 dB • Automatic switch-off (to save batteries) or continuous operation. • Robust, light ergonomic design. • Great stability of frequency level. • No need to apply corrections for static pressure and temperature. D_CB006_CB004_v0002_20080527_ENG

Villar, 20 - 08041 Barcelona (Spain) - Tel. (34) 934.335.240 - Fax. (34) 933.479.310 - e-mail: [email protected] - www.cesva.com Certificates and standards CB006 - IEC 60942:2003 Class 1 EN 60942:2005 Class 1 CB004 - IEC 60942:2003 Class 2 EN 60942:2005 Class 2 Pattern approval certificate issued by the German laboratory PTB Physikalisch- Technische Bundesanstalt (PTB) nº PTB-1.61-4034840, as class 1 (CB006) and class 2 (CB004) according to EN 60942:2003. mark. Compiles with the low voltage directive 73/23/CEE and the directive CEM 89/336/CEE as modified by 93/68/CEE Frequency 1 kHz ± 1 % Sound...