Agilent Technologies 35670A User Manual

To measure overall sound pressure level
1 Complete the preceding task, “To measure sound pressure level.”
2 If the A-weight filters are on, press [
Input
][
ALL CHANNELS
][
FRONT END CH* SETUP
],
then press [
AWTFLTRONOFF
] to highlight OFF.
3 Press [
Disp Format
][
MORE
][
OCTAVE BND SETUP
], then press [
OVERALL ON OFF
]to
highlight ON.
4 Turn the knob to place the marker on the overall band.
5 Record the marker readout’s Y-axis value.
[
OVERALL ON OFF
] enables and disables the analyzer’s overall band. This band
displays band-limited overall SPL—the SPL within the current frequency span—if all
of the following things are true:
• Linear, exponential, or equal-confidence averaging is selected (under the [
Avg
]
hardkey).
• The impulse detector is turned off (also under the [
Avg
] hardkey).
• The corresponding channel’s A-weight filter is turned off (under the [
Input
]
[
FRONT END CHx SETUP
]softkey).
You can also enable a special band that is dedicated to displaying A-weighted,
band-limited overall SPL. Just press [
Disp Format
][
MORE
][
OCTAVE BND SETUP
],
then press [
WEIGHTED ON OFF
] to highlight ON. See online help for more information
on either of these two SPL bands.
Marker readout.
“L” indicates
band-limited SPL is
displayed.
Overall band.
Agilent 35670A
Measuring Sound Operator's Guide
3-8

Agilent Technologies 35670A Specifications

General

Brand	Agilent Technologies
Model	35670A
Category	Measuring Instruments
Language	English