SVAN 948 USER MANUAL
.
4 - 2
•
In the case of the presentation of
1/1 OCTAVE
or
1/3 OCTAVE
statistical analysis results (see
above for the acoustic signal), pressing the
<SHIFT>
and
<
>
or
<SHIFT>
and
<
>
push-
buttons enables the user to present the results of the analysis for different
1/1 OCTAVE
or
1/3 OCTAVE
filters. Pressing the
<
>
,
<
>
push-buttons results in the changing of the cursor
position for which the value of
LN
is displayed.
The acoustic measurement channel consists of the instrument, the preamplifier
SV 12L
and the
microphone
SV 22
. These channels are factory calibrated and prepared for the work in the standard
environmental conditions. The calibration of the measurement channels has to be done when the absolute
sound pressure level value is important. It is because the microphone sensitivity is a function of the
temperature, ambient pressure and humidity. The calibration procedure is described in Chapter 4.1.
The vibration measurement channel consists of the instrument and a transducer (e.g. Dytran
3143M1 IEPE type with the nominal sensitivity 10 mV / ms-
2
). This channel is factory calibrated and
prepared for the work in the standard environmental conditions. The calibration of the measurement
channel has to be done in non-standard conditions. It is because the transducer sensitivity is a function of
the temperature, ambient pressure and humidity. The calibration procedure is described in Chapter 4.1.
The main function of the instrument is the
measurement of sound level
(in the case of acoustic
signal) and the
measurement of vibration level
(in the case of vibration signal).
1/1 OCTAVE
or
1/3 OCTAVE
analysis, narrow-band frequency analysis (
FFT
) etc., are the optional functions, which
broaden the applications of the instrument. They can be supported by the producer or purchased later.
The producer activates the optional functions bought with the instrument. The user should activate by itself
the functions purchased later.
The detailed description of
•
the calibration procedure is given in Chapter 4.1,
•
the measurement of signal’s level is described in Chapter 4.2,
•
The way, in which this activation is performed, is presented in Chapter 4.3,
•
1/1 OCTAVE
analysis is given in Chapter 4.4,
•
1/3 OCTAVE
analysis is described in Chapter 4.5,
•
DOSE
analysis is presented in Chapter 4.6.
The optional functions are described in the Apps. The additional functions of the instrument,
namely: the available ways of the measurement results presentation (
DISPLAY
list), the settings (
SETUP
list) and the storing of the measurement results (
FILE
list), are described in Chapter 5.
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...