![Svantek SVAN 971 Скачать руководство пользователя страница 40](http://html1.mh-extra.com/html/svantek/svan-971/svan-971_user-manual_1409279040.webp)
SVAN 971 User Manual
40
Note: When an event recording is waiting for the gradient trigger manual
trigger
or “integration period” trigger, the flashing “trigger” icon
superimposes on the grey
„note-curve” icon.
Definition of filter
The
Filter
position enables the user to choose the broadband frequency filter
during event recording:
Z
,
A
,
C
,
B
or
LF
.
Sampling frequency of event recording
The
Sampling
position enables the user to select the sampling frequency of event
recording:
12KHz
.
Source result
The
Source
position indicates the trigger source. Only one measured result can
be used as a triggering source in all modes, namely the output of the LEQ detector
of the first profile, which is denoted here as
Leq(1)
.
Threshold level
The level of the triggering source (
Level
) can be set in the range from 24 dB to
136 dB.
An instantaneous value of the RMS or LEQ result calculated with selected
Filter
and
Detector
constant for the first profile (
path: <Menu> / Measurement / Profiles
)
compares with the
Level
value every 0,5 milliseconds.
Speed of triggering signal changing
Speed of triggering signal changing (
Gradient
) can be set in the range from
1 dB/ms
to
100 dB/ms
.
Checking the triggering condition
The
Tr. Period
parameter
defines the time interval for
checking the triggering condition as:
Logger Step
,
0.5ms
,
100ms
and
1s
.
►
Recording before trigger
When the
Pre Trigger
parameter is switched on, the event
signal will be recorded before the first trigger. The interval
of such recording is 1 s.
►
Содержание SVAN 971
Страница 98: ...SVAN 971 User Manual 98 ...
Страница 154: ...SVAN 971 User Manual Appendixes 154 1000 Hz 1250 Hz 400 Hz 500 Hz 630 Hz 800 Hz ...
Страница 155: ...SVAN 971 User Manual Appendixes 155 1600 Hz 2000 Hz 2240 Hz 2500 Hz 2800 Hz 3150 Hz ...
Страница 156: ...SVAN 971 User Manual Appendixes 156 3550 Hz 4000 Hz 4500 Hz 5000 Hz 5600 Hz 6300 Hz ...
Страница 157: ...SVAN 971 User Manual Appendixes 157 7100 Hz 8000 Hz 8500 Hz 9000 Hz 9500 Hz 10000 Hz ...
Страница 169: ...SVAN 971 User Manual Appendixes 169 2 0 kHz 1 1 octave filter 1 0 kHz 1 1 octave filter 500 Hz 1 1 octave filter ...
Страница 170: ...SVAN 971 User Manual Appendixes 170 250 Hz 1 1 octave filter 125 Hz 1 1 octave filter 63 0 Hz 1 1 octave filter ...
Страница 177: ...SVAN 971 User Manual Appendixes 177 B filter Class 1 according to the IEC 651 B filter characteristics ...
Страница 206: ...SVAN 971 User Manual Appendixes 206 400 Hz 500 Hz 630 Hz 800 Hz 1000 Hz 1250 Hz ...
Страница 207: ...SVAN 971 User Manual Appendixes 207 1600 Hz 2000 Hz 2240 Hz 2500 Hz 2800 Hz 3150 Hz ...
Страница 208: ...SVAN 971 User Manual Appendixes 208 3550 Hz 4000 Hz 4500 Hz 5000 Hz 5600 Hz 6300 Hz ...
Страница 209: ...SVAN 971 User Manual Appendixes 209 7100 Hz 8000 Hz 8500 Hz 9000 Hz 9500 Hz 10000 Hz ...
Страница 220: ...SVAN 971 User Manual Appendixes 220 ...