SVAN 948 USER MANUAL
5 - 19
enter this position the user has to select the
FIELD CORRECTION
text in the
SETUP
list, using the
<
>
,
<
>
(or
<
>
,
<
>
) push-buttons, and press the
<ENTER>
.
The view of the display in the
SETUP
list in sound measurements, the FIELD CORRECTION text
highlighted (displayed inversely)
In the
FIELD CORRECTION
position two options are available:
FREE
(for the measurement
performed in the free field conditions) and
DIFFUSE
(for the measurement performed in the diffuse field
conditions). The microphone supplied with the SVAN 948 instrument (SV 22) is designed for the
measurement performed in the free field conditions. In order to make the measurements in the diffuse
field conditions the user has to switch on an additional correcting filter. The frequency characteristic of this
filter is given in App. D. The
FREE
option selection means that the correcting filter for the diffuse field
conditions is switched off. For the measurements performed with the use of the microphones for the
diffuse field conditions the option
DIFFUSE
should never be used.
In order to select the filter the user has to press the
<
>
,
<
>
push-buttons. The position is closed
and the instrument returns to the
SETUP
list after pressing the
<ENTER>
(with the confirmation of a
change made in the position) or
<ESC>
push-button (ignoring a change made in the position).
The displays in the FIELD CORRECTION position, the field conditions selection for sound measurements
Introduction the filter coefficients for 1/3 (1/1) OCTAVE analysis - USER FILTERS
The
USER FILTERS
(path: MENU / SETUP / USER FILTERS)
sub-list enables the user to introduce
the values of the correcting coefficients taken into account in
1/1 OCTAVE
or
1/3 OCTAVE
analysis. The
results of the analysis can be modified by the introduced factors and so calculated TOTAL values for one
or two active (set to
On
) sets of the filters presented on the display. In order to enter this sub-list the user
has to select the
USER FILTERS
text in the
SETUP
list, using the
<
>
,
<
>
(or
<
>
,
<
>
) push-
buttons and press the
<ENTER>
. The texts which appear after pressing
<ENTER>
depends on the
position set in the
MODE
sub-list.
a)
The view of the display in the
SETUP
list the USER FILTERS text highlighted (displayed inversely)
USER FILTERS
(sub-list) contains 2 sub-lists:
VIBR. FILTERS
Summary of Contents for SVAN 948
Page 1: ...SVAN 948 SOUND AND VIBRATION DATA LOGGER USER S MANUAL SVANTEK Sp z o o WARSAW June 2004...
Page 19: ...SVAN 948 USER MANUAL 2 6 The view of the rear panel of the SVAN 948 instrument in 1 1 scale...
Page 25: ...SVAN 948 USER MANUAL 3 6 Control diagram of the INPUT list...
Page 28: ...SVAN 948 USER MANUAL 3 9 Control diagram of the DISPLAY list...
Page 30: ...SVAN 948 USER MANUAL 3 11 Control diagram of the FILE list...
Page 32: ...SVAN 948 USER MANUAL 3 13 Control diagram of the AUX FUNCTION list...
Page 36: ...SVAN 948 USER MANUAL 3 17...
Page 37: ...SVAN 948 USER MANUAL 3 18 Control diagram of the SETUP list...
