acoustic calibrator0 pages

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.
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