SECTION
6
CALIBRATION
Introduction
Complete
calibration
information
for
the
Type
3B5
Auto-
matic/Programmable
Time
Base
is given
in
this
section. This
procedure
calibrates the
instrument
to
the
performance
requirements
listed in
the
Characteristics
section.
The
Type
3B5
can
be
returned
to
original
performance
standards
by
completion of
each
step
in
this
procedure.
If
it
is
desired
to
merely touch
up the
calibration,
perform
only
those
steps
entitled
"Adjust .
.
.".
A
short-form
calibration,
procedure
is
also
provided
in
this
section
for
the
convenience
of
the
experienced
calibrator.
The
Type
3B5
should
be
checked,
and
recalibrated if
neces
sary,
after
each 500
hours of operation, or every
six
months
if
used
infrequently,
to
assure
correct
operation
and
accuracy.
The
Performance
Check
section
of
this
manual
provides
a
complete
check
of
instrument
performance
without
making
internal adjustments.
Use
the
performance
check
procedure
to
verify
the
calibration of
the
Type
3B5 and
determine
if
recalibration
is
required.
EQUIPMENT
REQUIRED
General
The
following
test
equipment,
or
its
equivalent,
is
required
for complete
calibration
of
the
Type
3B5 (see
Fig.
6-1).
Spec
ifications
given
are
the
minimum
necessary
for
accurate cali
bration
of
this
instrument.
All
test
equipment
is
assumed
to
be
correctly
calibrated
and
operating
within
the
given
spec
ifications.
If
equipment
is substituted,
it
must meet
or
exceed
the
specifications
of
the
recommended
equipment.
1.
Indicator
oscilloscope.
Must
be
compatible
with
the
Type
3B5 and
must
be
capable of
supplying
the
necessary
power.
Tektronix
Type
561A
Oscilloscope
recommended.
2. Automatic/programmable
amplifier
unit.
Must
be
com
patible
with
the
indicator
oscilloscope
and
the
Type
3B5.
(A
standard amplifier plug-in
unit
may
be
used
although
some
steps
may
not
apply.)
Tektronix
Type
3A5 Automatic/Pro-
grammable
Amplifier
recommended.
3. Remote
seeking
probe.
Tektronix
P6030
recommended.
4.
Constant
amplitude
sine-wave
generator.
Frequency, 50
kHz
and
350
kHz
to
20
MHz;
output
amplitude,
0.5
to
5
volts
peak
to
peak
into
50
ohms;
amplitude
accuracy,
within
±3%
from
50
kHz
to
above
20
MHz.
Tektronix
Type
191
Constant
Amplitude
Signal
Generator
recommended.
5.
Low-frequency
sine-wave
generator.
Frequency,
10
Hz
to
2
MHz;
output
amplitude,
0.5
to
40
volts
peak
to
peak;
amplitude
accuracy,
within ±3% from
10
Hz
to
2
MHz.
For
example,
General
Radio
1310-A
Oscillator.
6.
Time-mark generator.
Marker
outputs,
5
seconds
to
20
nanoseconds;
accuracy
within
±0.1%.
Tektronix Type
184
Time-Mark
Generator
recommended.
7.
Test
oscilloscope
system.
Frequency
response,
DC
to
25
MHz; minimum deflection
factor,
0.05
volts/division
(with
out
probe).
Tektronix
Type
543B Oscilloscope
with
a
Type
1A2
Plug-In
Unit
and
a
P6008 10X probe
recommended.
8.
Cable.
Impedance,
50
ohms;
type, RG-8A/U; electrical
length,
five nanoseconds (for use
with
Type
191);
connectors,
GR874.
Tektronix
Part No. 017-0502-00.
9.
In-line termination.
Impedance,
50
ohms;
wattage
rat
ing,
two
watts;
accuracy,
±3%;
connectors,
GR874
input
with
BNC
male
output.
Tektronix
Part
No. 017-0083-00.
10.
Cable
(two).
Impedance, 50
ohms;
type, RG-58A/U;
length,
42
inches;
connectors.
BNC.
Tektronix
Part
No. 012-
0057-00.
11.
Termination.
Impedance
50
ohms;
accuracy,
±3%;
connectors,
BNC. Tektronix
Part
No.
011-0049-00.
12. BNC
T
connector.
Tektronix
Part
No.
103-0030-00.
13.
Rigid
plug-in
extender,
24-pin.
Tektronix
Part No.
013-
0034-00.
14.
Circuit-card
extender,
56-terminal.
Tektronix
Part
No
012-0078-00.
15.
DC
voltmeter.
Minimum
sensitivity,
20,000
ohms/volt;
accuracy,
within
±1%
at
—12,
—100,
±125
and
±180
volts;
range,
zero
to
200
volts.
For example,
Simpson
Model
262.
16.
Adapter.
Connectors,
BNC
female
and
two
alligator
clips.
Tektronix
Part
No.
013-0076-00.
17.
Insulated
screwdriver.
1
’
/
2
-inch
shaft,
non-metallic.
Tektronix
Part
No.
003-0000-00.
18.
Screwdriver.
Three-inch
shaft.
Tektronix
Part
No. 003-
0192-00.
CALIBRATION
RECORD
AND
INDEX
This
short-form
calibration
procedure
is
provided
to
aid in
checking
the operation of
the
Type
3B5.
It may be
used
as
a
calibration guide
by
the experienced
calibrator,
or
it
may
be
used
as
a
record
of
calibration.
Since
the
step
numbers
and
titles
used
here
correspond
to
those
used
in
the
complete
procedure,
this
procedure
also
serves
as
an
index
to
locate
a
step
in
the
complete
Calibration
Procedure.
Performance
requirements
correspond
to
those
given
in
the
Characteristics
section.
Type
3B5,
Serial
No.
_____________________
Calibration
Date
__________________________
Calibration
Technician
____________________
6-1
Содержание 3B5
Страница 4: ...Fig 1 1 Type 3B5 Automatic Programmable Time Base unit Type 3B5...
Страница 15: ...Operating Instructions Type 3B5 TYPE 3B5 CONTROL SET UP CHART Fig 2 2 Control set up chart 2 7...
Страница 48: ...CO I o Fig 3 13 Delay and Timing Circuit logic block diagram Circuit Description Type 3B5...
Страница 61: ...GO i GO GO Fig 3 22 Seek Ciicuit Logic block diagram Circuit Description Type 3B5...
Страница 70: ...u k KJ Fig 3 29 Circuit conditions for Manual Mode operation Circuit Description Type 3B5...
Страница 71: ...w K w Fig 3 30 Circuit conditions for Seek Mode operation Circuit Description Type 3B5...
Страница 72: ...w I u U Fig 3 31 Circuit condition for External Mode operation Circuit Description Type 3B5...
Страница 88: ...Maintenance Type 3B5 Fig 4 9 Location of components on Logic Card 4 14...
Страница 89: ...u Oi Fig 4 10 Location of components on Counter Card Maintenance Type 3B5...
Страница 92: ...NOTES I...
Страница 104: ...NOTES...
Страница 106: ...Calibration Type 3B5 Fig 6 1 Recommended calibration equipment...
Страница 160: ......
Страница 176: ...J400 RtADOUT BOARD 3B5 PLUG IN A READOUT...
Страница 182: ...397 R E A D O U T B O A R D 10 6b READOUT BOARD...
Страница 184: ...FIG 1 FRONT SWITCHES TYPE 3B5 AUTOMATIC PROGRAMMABLE TIME BASE...
Страница 185: ...FIG 2 CHASSIS REAR 3 GS to TYPE 3B5 AUTOMATIC PROGRAMMABLE TIME BASE...
Страница 186: ...OPTIONAL ACCESSORIES...