10
1. GENERAL DESCRIPTION
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 sound dose meters 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. It is advisable to use them with
microphones models C-130, C-250, P-
05 and P007.
The
CB006
and the
CB004
generate a sound level of 94 dB (1 Pa = 1 N/m
2
) 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.
2. PARTS AND CONTROLS
In the following figure, the principal parts of the CB006 and CB004 calibrators are shown:
1)
Power button:
Button for switching the calibrator on and off.
2)
CE Mark:
European approval mark.
3)
WEEE Mark:
Symbol indicating separate collection for electrical and electronic
collection.
4)
Battery state indicator:
When the calibrator is on the indicator (green LED) must light.
5)
Battery compartment:
Space where the battery should be inserted.
6)
Battery cover:
Cover for protecting the battery.
7)
Retaining screw:
Screw for fixing the battery cover to the calibrator.
Summary of Contents for CB004
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Page 5: ...CB006 CB004 Manual de instrucciones 3 7 5 6 4 1 2 3...
Page 13: ...CB006 CB004 User s manual 11 7 5 6 4 1 2 3...
Page 21: ...CB006 CB004 Manuel d instructions 19 7 5 6 4 1 2 3...
Page 29: ...CB006 CB004 Manual de instru es 27 7 5 6 4 1 2 3...
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