Chapter 1 – Introduction
Features
2
Brüel & KjærIntegrating Sound Level Meter Type 2239 A
User Manual
●
Chapter 6 – Specifications: a comprehensive listing of
technical specifications of type 2239 A.
● Chapter 7 – Quick Reference: contains several flowcharts
and some brief descriptions to help you find the settings
you need when working with the instrument.
● Chapter 8 – Index
1.1.2 Conventions Used in this Manual
All references to buttons on Type 2239 A are shown with the
button’s pictogram as it appears on the instrument. See sec-
tion 2.2 for a complete list of button pictograms and their
functions.
Text which refers directly to text on the instrument’s screen
or printouts is indicated using a
Courier type face.
For example, “Press until
MaxP is visible on the screen.”
1.2 Features
Type 2239 A contains several features that enable you to take
and save sound level measurements under a variety of condi-
tions. Features include:
● Ease of use
● Three measurement ranges
● Seven measured parameters (see section 1.3)
● A- or C-weighted RMS measurements in parallel with C-weighted
peak
● Fast, Slow, and Impulse time weightings
● Easy to read display with backlight
● Preset measurement time up to eight hours
● Storage of up to 40 records (see section 1.5.3)
bb221911.book Page 2 Tuesday, July 24, 2001 11:23 AM
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