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POWER SUPPLY
2.1
AC Supply: Before operating a new instrument, or at a
n~w
location, check
that the voltage selection is correct (see rear panel label).
Set the rear
panel switch to LI NE POWER and the POWER switch to ON.
Battery Supply: Set the rear panel switch to BATTERY POWER.
Set the POWER
switch to ON and verify that the BATTERY LOW indicator does not light.
FREQUENCY MEASUREMENT (NORMAL)
2.2
(1)
Set the controls as follows:-
(a)
NORMAl/BURST/CHECK switch to NORMAL.
(b)
OPERATI;!STANDBY switch to OFf RATE.
(c)
INPUT switch to channel 'A' or
'B'
as required.
(2)
Connect the external signal to the appropriate input socket 'A' or 'B'.
The damage overload input levels are:-
Input 'A'
3SV r.m.s. (overload
protection above SV
r. m. s.)
Input
I
B'
250V r.m.s. up to 10 kHz
50V r. m. s. up to 100 k
Hz
10V r.m.s. above 100 kHz
(3)
Check that the GATE lamp lights.
(4)
When using Channel 'A' observe the OVERLOAD indicator.
Illumination
indicates that the input signal has exceededSV r.m.s., that input
protection has come into operation and the input impedance wi
II
have
risen above 50D
(5)
Set the RESOLUTION switch to
fitl
the display, or as required.
Read the
display in the units indicated by the units indicators.
If required, use
the overflow procedure (see next paragraph).
2-1
9916Vol.2
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