Calibration
Procedure—465B Service
Performance Check
PERFORMANCE CHECK
Purpose
The following procedure is
intended to
be
used for
incoming
inspection to determine
the
acceptability of
newly purchased or recently
recalibrated instruments.
This procedure does
not check every facet of the in-
strument’s
calibration; rather it is concerned primarily
with
those portions of the instrument that are
essential to
measurement accuracy and correct operation.
Removing
the
instrument's dust cover is not necessary to perform
this procedure. All checks
are
made
from the front panel.
NOTE
If a
complete check
of
every facet of the instrument's
operation is desired, perform the
calibration
procedure,
eliminating the ADJUST portion of the
Check/Adjust steps.
Limits and Tolerances
All limits and tolerances given in this procedure are
performance guides and should not be interpreted as
specifications unless they
are found
in
the Specification
section of this manual.
Line Voltage
Selection
This procedure is for 115 Vac
line, medium range.
If
a
different range is to be used, set the
Regulating Range
Selector and Line Voltage
Selector for the available line
voltage
(see
Operating
Voltage
in the Installation Instruc-
tions
of
this
manual).
Test Equipment Required
The following equipment is required to perform a
complete Performance Check. For equipment speci-
fications, usage, and recommended types, see
Table
4-1.
1.
Calibration Generator
2.
Square-wave Generator
3.
Leveled
Sine-wave Generator
4. Time-mark Generator
5. 42-inch, 50 0 Bnc
Cable
(2
required)
6. Dual-input Coupler
(2
required)
7.
GR-to-bnc-male Adapter
8.
GR-to-bnc-female Adapter
9.
10X Bnc Attenuator
10. 2X Bnc Attenuator
11.
50
Q Bnc Termination
(2
required)
12.
50
D Signal Pickoff Unit (Type CT-3)
13.
Bnc-to-miniature-probe-tip
Adapter
14. Bnc T Connector
15. 10X Scale-factor-switching Probe or
11
kQ
resistor.
Special Fixtures
Special
fixtures
are
used only where they
simplify
the
test setup and procedure. These fixtures are
available
from Tektronix, Inc. Order by part
number through your
local Tektronix Field Office or representative.
Test Equipment Alternatives
When equipment other
than that recommended is used,
control settings or
test
setup may
need to be
altered. If the
exact item of equipment given as an
example
in
the
Test
Equipment list is not
available,
first check the
Minimum
Specifications column carefully to see if any other
equip-
ment
might suffice. Then check the Usage column to see
the purpose of this item. If used for a check that is of little
or no importance to your
measurement requirements, the
item and corresponding steps can
be
deleted.
Preparation
Connect test equipment and instrument to be perfor-
mance checked to an appropriate power input source.
Turn on and allow a 20-minute warmup period before
commencing Performance Check.
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