BRUEL & KJAER 2239 A - Displayed Parameters; Parameter Definitions

Chapter 7 – Quick Reference
Displayed Parameters
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Integrating Sound Level Meter Type 2239 A
User Manual
7.3 Displayed Parameters
The Measurement Window displays two parameters at a time
on the bottom two lines of the screen, though seven parame-
ters are monitored by the instrument at all times. Press
to step through the readings. You can change the displayed
parameters both during and after measurement. The flowchart
below details the available paired choices. Note that the
weightings shown in the screens below (AF) may differ from
your own, depending on your settings. For more information,
see section 3.3.
7.3.1 Parameter Definitions
L
eq
(L
Im
) Equivalent continuous sound level since the last re-
set. L
Im
is shown instead of L
eq
when the instrument
is set to an Impulse time weighting.
Fig.7.2 Measurement Range flowchart
STOP 00:00:00
MaxP ---.- dB
AF MaxL ---.- dB
30 100
STOP 00:00:00
MaxP ---.- dB
AF MaxL ---.- dB
70 140
STOP 00:00:00
MaxP ---.- dB
AF MaxL ---.- dB
50 120
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