B&K 2250 Light Instrukcja Użytkownika Strona 140

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Hand-held Analyzer 2250 Light User Manual
132
GPS Annotations
A text annotation with GPS information can be
attached (Latitude, Longitude, Altitude and position
error). Requires connection to a GPS receiver
Data Management
PROJECT TEMPLATE
Defines the display and measurement settings. Setups
can be locked and password protected
PROJECT
Measurement data stored with the project template
JOB
Projects are organised in jobs
Explorer facilities for easy management of data (copy,
cut, paste, delete, rename, open project, create job,
set default project name)
Software Specifications – 1/1-octave Frequency Analysis Software for 2250 Light
BZ-7131 and 1/3-octave Frequency Analysis Software for 2250 Light BZ-7132
The specifications for BZ-7131 and BZ-7132 include
the specifications for Sound Level Meter Software for
2250 Light BZ-7130. BZ-7131 and BZ-7132 add:
Standards
Conforms with the following National and International
Standards:
IEC 61260 (199507) plus Amendment 1 (200109),
1/1-octave Bands and 1/3-octave Bands, Class 0
ANSI S1.111986, 1/1-octave Bands and 1/3-octave
Bands, Order 3, Type 0–C
ANSI S1.11 2004, 1/1-octave Bands and 1/3-octave
Bands, Class 0
Frequency Analysis
CENTRE FREQUENCIES
1/1-octave Band Centre Frequencies (BZ-7131 only):
16 Hz to 8 kHz
1/3-octave Band Centre Frequencies (BZ-7132 only):
12.5 Hz to 16 kHz
MEASUREMENTS
X = frequency weightings A, B, C or Z
Spectra for Display and Storage:
Spectra for Display Only:
Single Values
MEASURING RANGES
When using Microphone Type 4950:
BZ-7131, 1/1-octave:
Dynamic Range: From typical noise floor to max.
level for a pure tone signal at 1 kHz: 5.9 to 140 dB
Linear Operating Range: In accordance with
IEC 61260: 22.9 dB to 140 dB
BZ-7132, 1/3-octave:
Dynamic Range: From typical noise floor to max.
level for a pure tone signal at 1 kHz: 1.0 to 140 dB
Linear Operating Range: In accordance with
IEC 61260: 20.1 dB to 140 dB
MEASUREMENT DISPLAYS
Spectrum: One or two spectra superimposed + A/B
and C/Z broadband bars
Table: One or two spectra in tabular form
Y-axis: Range: 5, 10, 20, 40, 60, 80, 100, 120, 140 or
160 dB. Auto zoom or auto scale available
Cursor: Readout of selected band
L
Xeq
L
XSmax
L
XFmax
L
XSmin
L
XFmin
L
XS
L
XF
SIL PSIL SIL3
L
Xeq
(f1–f2)
*
*. where f1 and f2 are frequency bands in the spectrum.
NR NR Decisive Band
RC RC Classification
NCB NCB Classification
NC NC Decisive Band
Loudness Loudness Level (BZ-7132 only)
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