B&K 2250 Light Bedienungsanleitung Seite 174

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Hand-held Analyzer 2250 Light User Manual166
C.3 Calibration Setup
C.4 Type 2250 Light Microphones
Table C.5 Microphone parameters
Table C.4 Calibration setup parameters
Parameter Values Comment
Calibrator 4231
Custom
Select which calibrator to use
Calibration Level (for Sound
Calibrator Type 4231)
0.00 to 200.00 dB
re 20 µPa
The Calibration Level will be automatically
calculated
Calibration Level (for Custom
Sound Level Calibrator)
0.00 to 200.00 dB
re 20 µPa
Set calibration level for custom calibrator
Serial No. for 4231 Text string Serial number will be documented in
calibration history
Serial No. for Custom Sound
Level Calibrator
Text string Serial number will be documented in
calibration history
Microphone Application
Optimised
For
Dynamic Range
*
*. From the typical total inherent noise level for the microphone and Type 2250 Light, to the overload limit for a sinusoidal
signal at 1 kHz.
Free-field ±1 dB
Frequency
Range
Free-field ±2 dB
Frequency
Range
4950 Standard
Prepolarized
Free-field and
Diffuse-field
16.4 –140 dB(A) 6.3 Hz 19.0 kHz 5.6 Hz 20 kHz
4952 Outdoor
Prepolarized
Free-field 0
or 90and
Diffuse-field
20.0 – 141 dB(A) 6.3 Hz – 14.0 kHz 5.6 Hz – 14.5 kHz
4952 +
EH-2152
Outdoor
Prepolarized
Free Field 0
or 90
Diffuse Field
20.0 – 141 dB(A) 6.3 Hz – 14.0 kHz 5.6 Hz – 14.5 kHz
4184-A
†. Only with hardware version 4
Weatherproof
200 V
Free-field 0
or 90and
Diffuse-field
28.8 – 150 dB(A) 3.6 Hz – 15.0 kHz
6.6 Hz – 15.0 kHz
2.5 Hz – 16.5 kHz
5.6 Hz – 16.5 kHz
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