4. Set the M O D E switch (Q) to W O W F L U T T E R . Next, set the L E V E L switch @ to
" 5 mV ~ 3 0 V " and check that the MONITOR lamp © lights. If the input
voltage is too small and the lamp does not light, set the L E V E L switch to " 0 . 5
mV - 100 mV".
Note:
When the MONITOR lamp is O F F , the w o w flutter cannot be measured accu-
rately.
Then, confirm that the frequency display @ is indicating 3 kHz ( 3 . 1 5 kHz for
DIN) ± 3 0 0 Hz. '
Note:
If the input Voltage is large, the MONITOR lamp will light with frequencies other
than 3 (3.15) kHz. . " .
5. Select the FUNCTION switch ( ® ~ ® ) for the desired frequency compo-
nent. The relationship between functions and frequency components is as fol-
lows:
Function
Frequency component (band)
WTD
W O W
F L U T T E R
UN WTD. '
Weighted frequency response of each
standard (0.2 ~ 2 0 0 Hz)
0.5 (0.3) - 6.0 Hz
6.0 - 2 0 0 Hz
0 . 5 ( 0 . 3 ) - 2 0 0 Hz
6. Select the INDICATION switch according to the type of standard.
7. Set the R A N G E switch © to the desired position so that w o w flutter can be
easily read on the meter @
Output
Terminals on
R e a r P a n e l :
C o n n e c t to p e n r e c o r d e r or
d i g i t a l m e m o r y s c o p e f o r
m a k i n g c o p y of w o w f l u t t e r
m e a s u r e m e n t .
C o n n e c t t o o s c i l l o s c o p e ,
m e m o r y s c o p e , d i g i t a l
m e m o r y s c o p e or F F T a n a -
l y z e r for o b s e r v i n g w o w f l u t t e r
w a v e f o r m s o r a n a l y z i n g
f r e q u e n c i e s
C o n n e c t to o s c i l l o s c o p e o r
p e n r e c o r d e r f o r o b s e r v i n g t h e
d r i f t o f w o w f l u t t e r s i g n a l
Fig. 5 Out put terminal on rear panel
12
* ( ) for D I N / C C I R
