BRUEL & KJAER 1615 - 7 Specifications

SPECIFICATIONS 1614/15
Frequency Range:
Selective range I:
Selective range II :
Linear range
50 position switch :
push button :
Band-pass Filters:
22.4
Hz- 22.4 kHz
1.8
Hz- 180kHz (1614 only)
22.4 Hz- 22.4 kHz
1.8
Hz- 200kHz
In accordance with IEC publication 225- 1966 and ANSI S1.11-1966.
and
DIN 45 652 (for 1/3 octave filters)
Centre-frequencies:
1/3 octave: 2
Hz- 160 kHz (50 filters)
1/1 octave: 4Hz- 125kHz (16 filters).
Attenuation outside pass-band:
1/3 octave: Better than
75 dB
at 5 x and 1/5 centre-frequency.
1/1 octave: Better than 60 dB
at 8 x and 1/8 centre-frequency.
Attenuation
in central pass-band:
Max. peak-to-valley ripple:
1/3 octave:
1/1 octave:
Linear Filters:
Attenuation
in pass-band:
Pushbutton:
Slope above pass-band:
50 position switch:
Slope outside pass-band:
0 dB ± 0.5 dB
0.5 dB.
1.5 dB.
0 dB ± 0.25 dB at 1 kHz ref.
1.8
Hz-180 kHz,± 0.1 dB
180 Hz-200 kHz,+ 0,-0.5 dB
36 dB/octave
22.4-22.4 kHz, ± 0.5 dB
24 dB/ octave
Filters for Sound Level Measurements:
Curve
A, B, C: In accordance with I EC standard for
precision sound
level measurements.
(IEC 179, 1965).
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