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Racal Instruments 9916 User Manual

Racal Instruments 9916
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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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Racal Instruments 9916 Specifications

General IconGeneral
BrandRacal Instruments
Model9916
CategoryMeasuring Instruments
LanguageEnglish