BRUEL & KJAER 2210 Instruction Manual

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Instruction Manual
Impulse Precision Sound Level Meter Type 2210
033-0245
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This compact battery-operated instrument
with digital read-out of sound level con-
forms to IEC Publication 651 fulfilling the
requirements of the Type 0 (Impulse) Labor-
atory Reference Standard sound level me-
ter. The detector has the standardized lm-
· p ulse, Fast, and Slow modes and a Peak
mode (rise time: 50 ps). It has automatic
gain control giving a large dynamic range of
90 dB(A) for direct measurements, tape re-
cording/reproduction technique using FM
Tape Recorder Type 7003. Manual gain con-
trol is also provided. The measuring range
is covered in three ranges shifted 20 dB
each. The SPL is shown on a 1 /3" 4-digit
display updated at 0,1 or 1 second intervals
or manually. The manual updating also pro-
vides a max. hold facility. The frequency
range is 20Hz to 20kHz and the A, B, C,
and D weighting networks are built in.
External filters such as 1 61 3 and 1 61 6
can be connected for frequency analysis
(also of weighted signals). Plug-in input
stage allows long cables between instru-
ment and microphone. The SLM accepts
1 /2" microphones directly, other micro-
phones via adaptors. AC, DC and digital out-
put facilities to peripheral equipment.
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Brliel
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Kjrer