98
SVANTEK 977W User Manual
When the
Averaged
or
Instantaneous
spectrum is selected, the user can
additionally switch on or off the presentation
of the
Max
and/or
Min
values for every
displayed spectrum band by switching the
Max
or
Min
parameters on.
=>
The user can easily get into the
Spectrum View
screen from the spectrum
view. It is necessary to enter the result field
(
RMS
) with the use of
▲ or ▼ push-buttons
and press
<ENTER>
.
<ENT>
NR and NC results view
In case of 1/1 octave Sound measurements
(
S:1/1
) noise rating (
NR
) and noise criterion
(
NC
) values can be additionally presented
on the same plot as main spectrum when
the
NR
or
NC
parameter is switched on. A
violet line shows the
NR
results for the
octave bands with central frequencies:
31.5Hz
,
63.0Hz
,
125Hz
,
250Hz
,
500Hz
,
1.00kHz
,
2.00kHz
,
4.00kHz
and
8.00kHz
.
A blue line shows the
NC
results for the
octave bands with central frequencies:
63.0Hz
,
125Hz
,
250Hz
,
500Hz
,
1.00kHz
,
2.00kHz
,
4.00kHz
and
8.00kHz
.
=>
To enable the cursor to read the
Max
,
Min
,
NR
or
NC
values the user should select the
field in the lower left hand corner of the
display by means of the
▲ or ▼ push-
buttons. Then select the appropriate value
by means of the
◄ or ► push-buttons
pressed together with
<Alt>
.
<Alt/
►
>
11.3.4. Selection of the spectrum type in Vibration mode - Spectrum Type
In the
Spectrum Type
window, which is
available only in Vibration modes, the user
can select the different types of vibration
spectra to be presented on the display:
Acceleration
,
Velocity
or
Displacement
.
<ENT>
