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5100
Series
6.
Depress
the
A
keyswitch
to
select
Current
2.
(Amps).
7.
The
KEYBOARD
and
A
indicators illuminate.
NOTE
The
output
will
be
in
direct
current
until
a
frequency
is
entered.
The
alternating current
may
be
altered
without
effecting the fre-
quency by
depressing
ENTER
and
deleting
the
remaining
steps
of
this
procedure.
8.
Depress
the
numeric keyswitches
required to
obtain the absolute value of the desired
fre-
quency.
Select
in
the
normal
sequence,
i.e.,from
the
MSD
(left)
to the
LSD
(right).
NOTE
For a
frequency
entry the
MSD
is
the
only
allowable
significant
digit.
9.
The
frequency entry appears
on
the Central
Display.
10.
Select
a
multiplier,
if
required.
If
none
is
selected
the
instrument
assumes
units.
Depress
the
numeric keyswitches
required to
obtain the absolute value of the desired
resist-
ance
setting.
Select
in
the
normal
sequence,
i.e.,
from
the
MSD
(left)
to the
LSD
(right).
NOTE
Resistance
entries
may
only be
made from
l
ohm
through
10
Megohms
in
multiples
of
powers of
ten
(e.g.,
10°,
W
l
,
10
2 ...10
7
).
3.
The
digits
selected
appear on
the
Central
Display
as
they are entered.
4.
Select a multiplier,
if
required.
If
none
is
selected
the
instrument
assumes
units.
5.
The
selected multiplier indicator,
if
any,
illu-
minates.
6.
Depress
the
Cl
keyswitch
to
select
Resistance
(ohtns).
7.
The
OHM
indicator illuminates.
11.
The
selected multiplier indicator,
if
any,
illu-
minates.
12.
Depress
the
Hz
keyswitch.
13.
The
Central Display,
KEYBOARD, AC
and
Hz
indicators illuminate.
14.
Depress
the
ENTER
keyswitch.
15.
The
frequency remains
on
the
Central Display
and
the
AC
indicator
on
the
Output
Display
illuminates.
NOTE
The frequency
may
be
selected
without
enter-
ing the current into the
instrument
by
deleting
steps
l
through
7.
ft'-
Select
OPR
on
the
instrument
if
required,
to
obtain
an
output.
NOTE
If
the
required
compliance
voltage exceeds
the Calibrator's capacity, the
Central Display
flashes "0.
L. "
and
the
instrument goes
into
STDBY.
2-59.
Resistance
Output
2-60.
Obtain
a Resistance
Output
using the following
procedure:
1.
If
the
meter being
tested
is
not
connected
to
the
instrument output terminals
perform
the
con-
nection
procedure above.
NOTE
If
a low
ohms
value (10
Kilohms
and
below)
and
internal
sensing
(two
terminal)
is
selected
the
Central
Display flashes for one-half
second
"
CAL
ID" when
the
ENTER
switch
is
depressed. This display
notifies
the
operator
that
he
may
compensate for
the residual
resistance
encountered
in
low
resistance
,
two-
terminal
calibration
by performing
the
CA
L
OHM
procedure.
This
message
is
only
dis-
played
the
first
time
low
ohms
is
selected
after
initial
power
applications
or
a
RESET
command.
The
CAL
HI
display
is
blanked
when
the
Resistance
Value
is
entered
into
memory.
8.
Depress
the
ENTER
keyswitch.
9.
The
data
visible
on
the
Central Display
transfers
to the
Output
Display,
blanking
the Central
Display.
10.
Select
OPR
oh
the
instrument,
if
required,
to
obtain
an
output.
2-61.
dBm
Output
(AC
Volts only)
2-62.
Obtain an output
in
decibels
(i.e.,
0
dBm
is
equal
to
1
mW
across
600
ohms
for
the
main
output
terminals
or across 50
ohms
for the
Wideband
Option
output.)
using the following procedure:
2-19
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