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BRUEL & KJAER
Measuring Instruments
2221
BRUEL & KJAER 2221 User Manual
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Briiel
&
Kjaer
DK-2850
NIERUM.
DENMARK·
Telephone•
+
4528005oo
·
Telex•
37316
bruka
dk
Printed
in
Denmark
by
Nmrum
Offset
31
Table of Contents
Table of Contents
5
Controls
11
Operation
15
Introduction
15
Battery Installation
15
Mounting the Microphone
16
Calibration
16
Sound Level Measurement
17
General
17
Considerations Regarding the Type of Sound Field
18
Leq and SEL Measurements
20
Max Hold "Fast/Slow" Measurements
20
Max. Hold "Peak" Measurements
21
Use of the L Qlsel Conversion Table
21
Noise Dose Evaluation
23
Example of Measurement
23
Use with Other Instruments
25
Use with Level Recorder Type 2306
25
Use with Tape Recorder Type 7005/06
27
Recording with Direct and FM Units
27
Recording with the Compander Unit
28
Appendix
29
Service and Repair
30
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BRUEL & KJAER 2221 Specifications
General
Brand
BRUEL & KJAER
Model
2221
Category
Measuring Instruments
Language
English
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