Atec Bruel-Kjaer-2236 - Manual (Page 2)

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intervals. These band-pass filters
have centre frequencies of 31.5 Hz,
63 Hz, 125 Hz, 250 Hz, 500 Hz, 1kHz,
2 kHz, 4 kHz and 8 kHz.
dB2XL Software
The dB2XL software allows you to
transfer the measurement results
from the sound level meter directly
into a Microsoft

Excel spreadsheet,
and to produce basic graphs.
Reporter TM Software
This, more comprehensive software,
allows you to generate reports from
the measurement results obtained
from the sound level meter and dis-
play them.
Accredited Calibration
The sound level meter can also be
sold with an accredited calibration
that conforms to IEC 651 and
IEC 804.
Example Printout
Fig. 2 shows a printout from Graph-
ics Printer Type 2318 for a Level Dis-
tribution measurement.
entation. The clock can be set directly
from the front panel of the sound lev-
el meter, or over the digital interface.
Auto-start
The real-time clock has a timer fea-
ture which allows you to set up the
sound level meter so that it automat-
ically starts measuring at a prede-
fined point in time (up to one month
ahead) .
Data Storage & Processing
For each individual measurement,
the sound level meter logs the time,
L
eq
, and depending on the version,
MaxL and MaxP, or L
10
and L
90
. This
information is stored as a set. You
can store up to 21600 sets of results
(for example, 6 hrs logging at 1 s in-
tervals) in the sound level meter’s
128Kbyte non-volatile memory. These
results can be transferred in a
spreadsheet-compatible format via
the built-in serial interface to a PC
for additional analysis or graphical
presentation.
Interfacing to External Devices
The sound level meter communicates
to external devices via the interface.
By using the 9-pole to LEMO Cable
AO 0404, and 9-pole Cable with 25-
pole Adaptor AO 1386 you can easily
connect the sound level meter to
Graphics Printer Type 2318, a PC or
a serial printer.
The AC output of the sound level
meter can also be connected to a DAT
recorder via LEMO to BNC Cable
AO 0403.
AC & DC Outputs
The AC output from the sound level
meter is the unweighted output sig-
nal from the preamplifier. This can
be recorded on a DAT recorder, and
used for further spectral analysis and
noise source identification.
The DC output is the analogue
equivalent of whatever parameter is
currently being measured, except
that it does not include the correction
for the range and the microphone K-
factor.
Printing Results
Once you’ve finished measuring you
can print your results, either on the
lightweight Graphics Printer Type
2318, Serial Printer Types WQ 1138,
EQ 4001 or EQ 4002, or any standard
serial printer.
Simplified Calibration
The sound level meter employs a very
user-friendly calibration technique.
Once you have fitted the calibrator
(Sound Level Calibrator Type 4231,
Multifunction Acoustic Calibrator
Type 4226 or a similar calibrator),
the sound level meter calculates the
correction and prompts you either to
continue with the old calibration, or
do an automatic re-calibration.
Optional Features
Internal Filters
Type 2236 is also available with nine
built-in
1 / 1 -octave filters at 1 / 1 -octave
Fig.1 System setup for printing, recording and transferring results from the sound level
meter
Fig.2 Printer (24 character/line) output
format with short heading
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