Leader LTC-905 - Test Equipment Required; Calibration Procedure; Initial Control Settings

1
.
Test
Equipment
Required
The
following
test
equipment
is
required
for
calibration
and
servicing
of
the
Model
LTC-905.
The
suggested
specifications
are
the
minimum
necessary
for
proper
calib-
ration
of
this
instrument.
Test
Equipment
Minimum
Spec,
o
Multimeter
Accuracy
<±1^
o
Oscilloscope
lOmV sensitivity
1MHz
band
width
2.
Calibration
Procedure
»
Calibration
should
be
performed
after a 30
minute warm-up
period.
It
should
also be
confirmed
that
the unit is
connected
to the
rated
power line
voltage.
*
All adjustment
should be
completed
in the
given order,
because
some adjustments
interact
with
others.
*
During the
adjustment
procedure,
remove the case only
when necessary and
replace
immediately after
making
an
adjustment.
This will
maintain all
circuit
at
constant
operating temperature.
1)
Initial
Control Settings
The initial
control settings
to
be used
for each
check and
adjustment are
listed below. Any
variations from
these
settings sre
stated
in
the
applicable procedure.
o
POLARITY
o CURRENT
LIMIT
BASE , GATE
°
CURRENT"^
VOLTAGE
COLLECTOR/DRAIN
°
SWEEP
VOLTAGE
o
TRANS. -FET
o SELECTOR
NPN
SIGNAL
0
.
1 mA
10V
TRANS.
A
-
2
-
LTC-901