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®
O V E R L E V E L
L a m p
When using weighting
f i l t e r is to mask f r o m the operator
of an excessively high input level.
and the resulting errors can occur w i t h o u t the
operator
being aware of this condition.
this the O V E R L E V E L warning
operator
when the input level goes +15dB above
the f u l l seal level (OdB). .
®
A V E R A G E / P E A K
S w i t c h
T h i s switch is used to select the detection
In the released position average detection
R M S display are in effect.
selects either D I N or C C I R quasi-peak
and R M S display of the signal level.
A R M
is selected the detection
m a t i c a l l y switched to average detection
display regardless of the position of this s w i t c h .
®
W E I G H T
S w i t c h group
T h i s s i x position selection s w i t c h group a l l o w s
selection of one of
DIN A U D I O , C C I R or C C I R / A R M
response.
Selection of the F L A T
f i l t e r s the effect of
the
the presence
T h u s distortion
T o prevent
lamp a l e r t s the
and
Depressing the switch
detection
When
method is a u t o -
and R M S
F L A T
or J I S - A , DIN
N O I S E ,
weighted
position turns
the unit into a wideband A C voltmeter.
button is depressed, the mode is
C C I R / A R M .
J I S - A :
Used for
w i t h J S S
:
standards.
DIN N O I S E ;
Used for
w i t h DIN standard 45405.
method.
DIN A U D I O :
Used for
accordance w i t h D I N standard 45405.
C C I R :
C C I R /
Used for
w i t h C C I R standards..
C C I R / A R M :
Used for
w i t h C C I R / A R M
T h i s measuring equipment
Dolby
L a b o r a t o r i e .
When the C C I R / A R M
detection
P E A K
s w i t c h .
- 8 ~
noise level measurements in accordance
C 1 5 0 2 A , J I S "C5551A, I E C - A , and
noise level measurements in accordance
"
1QHz~2.0kHz
. audio level measurements in
:
measurements of noise level in accordance
noise level measurements in accordance
standards.
is recommended
f i l t e r
is used, average
is used regardless of the
If
no
a u t o m a t i c a l l y
I H F - A
by
A V E R A G E /
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