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the O S C t e r m i n a l on the rear panel, 3.15kHz
based on DIN or 3.0kHz based on J I S and
used for
recording and d r i f t meter self c a l i b r a -
tion.
®
I N P U T
terminal
Apply the signal to be measured to t h i s t e r m i n a l .
Its
input
impedance is 300kO and the m a x i m u m
input voltage is 100V ( D C + A C peak).
@
Z E R O
A D J U S T
control
For
0% calibration of the d r i f t meter.
the d r i f t meter to 0% under the condition
no input
is applied and "the I N P U T M O N I T O R
lamp lights r e d " .
If the DIN of the I N D I C A T I O N buttons
set
the O S C selector switch ©
c a l i b r a t i o n .
If the J I S / C C I R
set
O S C to 3kHz.
©
I N P U T M O N I T O R lamp
T h i s lamp lights red if no signal or
signal is applied to the I N P U T
It lights green if proper signal is applied to
I N P U T terminal ( i . e . , the input frequency is 3kHz
±300Hz for J I S / C C I R
C C I R
A d j u s t
where
is pressed,
to 3.15kHz f o r 0%
button is pressed,
improper
t e r m i n a l .
the
or 3.15kHz ± 3 0 0 H z for
and
input
level is 3 m V or m o r e ) .
©
D r i f t
meter zero adjust screw
f
For
adjustment of the mechanical zero point of
the d r i f t meter.
adjust the meter to the accurate zero point
a Phillips type screwdriver.
©
D r i f t
meter (Zero center type) •
T h i s meter reads the d r i f t of the revolution
a test piece to be measured such as a tape
recorder.
It measures up to
©
Handle
Use this handle to transport the meter.
©
Stand
Pull the stand in the direction of the a r r o w
and
lock
it.
DIN
Prion to turning on power,
± 5 % of
d r i f t .
F i g . 3
w i t h
of
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