Input, Analysis – Atec Bruel-Kjaer-2250-2270 User Manual
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Software Specifications – Sound Level Meter Software BZ-7222
Conforms with the following National and International Standards:
• IEC 61672–1 (2002–05) Class 1
• IEC 60651 (1979) plus Amendment 1 (1993–02) and Amendment 2
(2000–10), Type 1
• IEC 60804 (2000–10 ), Type 1
• DIN 45657 (1997– 07)
• ANSI S1.4 –1983 plus ANSI S1.4A–1985 Amendment, Type 1
• ANSI S1.43–1997, Type 1
Note: The International IEC Standards are adopted as European
standards by CENELEC. When this happens, the letters IEC are
replaced with EN and the number is retained. Type 2250/2270 also
conforms to these EN Standards
Input
CHANNELS (Type 2270 only)
All measurements are made from either Ch.1 or Ch.2
TRANSDUCERS
Transducers are described in a transducer database with information on
Serial Number, Nominal Sensitivity, Polarization Voltage, Free-field Type,
CCLD required, Capacitance and additional information.
The analogue hardware is set up automatically in accordance with the
selected transducer
CORRECTION FILTERS
For Microphone Types 4189, 4190, 4191, 4193, 4950, 4952 and 4184-A,
BZ-7222 is able to correct the frequency response to compensate for
sound field and accessories:
Sound Field: Free-field or diffuse-field (for Types 4952 and 4184-A only:
0
(Top) reference direction and 90° (Side) reference direction)
Accessories:
• Types 4189 and 4190 only: None, Windscreen UA-1650 or Outdoor
Microphone Kit UA-1404
• Types 4191 and 4193 only: None or Windscreen UA-1650
• Type 4950 only: None or Windscreen UA-0237
For Accelerometer Types 4397-A, 4513, 4513-001, 4513-002, 4514,
4514-001, 4514-002, 8341, 8324 and 6233C-10 the lower frequency limit
will be optimized to match the specifications for the accelerometer
Analysis
DETECTORS
Parallel detectors on every measurement:
A- or B-weighted (switchable): Broadband detector channel with three
exponential time weightings (Fast, Slow, Impulse), one linearly averaging
detector and one peak detector
C- or Z-weighted (switchable): As for A- or B-weighted
Overload Detector: Monitors the overload outputs of all the frequency-
weighted channels
MEASUREMENTS
X = frequency weightings A or B
Y = frequency weightings C or Z
V = frequency weightings A, B, C or Z
N = number between 0.1 and 99.9
Q = exchange rate 4, 5 or 6 dB
U = time weightings F or S
For Storage
Full statistics
For Display and Storage
Weather Data (requires connection to a weather station):
Only for Display as Numbers or Quasi-analog Bars:
Instantaneous Weather Data:
Wind Dir.
Wind Speed
Instantaneous GPS Data:
Latitude
Longitude
MEASURING RANGES
When using Microphone Type 4189:
Dynamic Range: From typical noise floor to max. level for a 1 kHz pure
tone signal, A-weighted: 16.6 to 140 dB
Primary Indicator Range: In accordance with IEC 60651, A-weighted:
23.5 dB to 122.3 dB
Linearity Range: In accordance with IEC 60804,
A-weighted: 21.4 dB to 140.8 dB
Linear Operating Range: In accordance with IEC 61672, A-weighted:
1 kHz: 24.8 dB to 139.7 dB
Peak C Range: In accordance with IEC 61672, 1 kHz: 42.3 dB to
142.7 dB
SAMPLING FOR STATISTICS
The Statistics can be based on either L
XF
, L
XS
or L
Xeq
:
• Statistics
L
XFN1-7
or L
XSN1-7
are based on sampling L
XF
or L
XS
, resp.,
every 10 ms into 0.2 dB wide classes over 130 dB
• Statistics
L
XN1-7
are based on sampling L
Xeq
every second into 0.2 dB
wide classes over 130 dB
Full distribution saved with measurement
The Std.Dev. (Standard Deviation) parameter is calculated from the
statistics
Start Time
Stop Time
Overload %
Elapsed Time
L
Xeq
L
Yeq
L
XE
L
YE
L
Ceq
-L
Aeqk
L
XSmax
L
XFmax
L
XImax
L
YSmax
L
YFmax
L
YImax
L
XSmin
L
XFmin
L
XImin
L
YSmin
L
YFmin
L
YImin
L
XIeq
L
YIeq
L
AIeq
-L
Aeq
L
AFTeq
L
AFTeq
-L
Aeq
Time Remaining
L
ep,d
L
ep,dv
E
Dose
Proj. Dose
L
vpeak
#VPeaks
(>NNNdB)
#VPeaks
(>137dB)
#VPeaks
(>135dB)
T
Vpeak
L
avUQ
TWA
TWAv
DoseUQ
Proj. DoseUQ
Wind Dir. avg.
Wind Speed avg.
Amb. Temperature
Wind Dir. min.
Wind Speed min.
Amb. Humidity
Wind Dir. max.
Wind Speed max.
Amb. Pressure
Amb. Rain Gauge
L
XS
L
XF
L
XI
L
YS
L
YF
L
YI
L
XS(SPL)
L
XF(SPL)
L
XI(SPL)
L
YS(SPL)
L
YF(SPL)
L
YI(SPL)
L
XN1
or L
XUN1
L
XN2
or L
XUN2
L
XN3
or L
XUN3
L
XN4
or L
XUN4
L
XN5
or L
XUN5
L
XN6
or L
XUN6
L
XN7
or L
XUN7
L
Vpeak,1s
Trig. Input Voltage
Std.Dev.