TB 9-6625-091-35
SECTION II
EQUIPMENT REQUIREMENTS
4. Equipment Required. Table 2
identifies the
specific equipment used in
this
calibration procedure. This equipment is issued with secondary transfer calibration
standards set 6695-00-621-7877 and maintenance set 4931-00-525-8175 and is to be used in
performing this procedure. Alternate items may be used by the calibrating activity when
the equipment listed in table 2 is not available. The items selected must be verified to
perform satisfactorily prior to use and must bear evidence of current calibration. The
equipment must meet or exceed the minimum use specifications listed in table 2. The
accuracies listed in table 2 provide a four-to-one accuracy ratio between the standard and
TI. Where the four-to-one ratio cannot be met, the actual accuracy of the equipment
selected is shown in parenthesis.
5. Accessories. Required. The
accessories listed in
table 3 are issued with the
secondary
transfer calibration standards set 6695-00-621-7877 and maintenance set 4931-00-525-8175
and are to be used in this calibration procedure. When necessary, these items may be
substituted by equivalent items unless specifically prohibited.
Table 2. Minimum Specification of Equipment Required
Manufacturer, model, and part number
Transfer
Maintenance
Item
Common Name
Minimum use specifications
(4931-00-525-8175)
A1
AC CALIBRATOR Range: .0686 to 29.128 v rms
Hewlett-Packard,
Balantine, Model
Accuracy: 0.75%
Model 745-C90 (MIS-
421A-S2
10342 Type 1).
A2
Must be compatible with TI.
Tektronix, Type 530,
Same1
540, or 550 series.
A3
SQUARE-WAVE
Tektronix, Type 106
Hewlett-Packard,
200 mv to 12 v
(MIS-10284-1).
Model 211B
Rise time: 12 nsec or less.
1Must
be furnished by user.
Table 3. Accessories Required
Item
Common name
Description and part number
B1
ADAPTER
BNC jack to UHF plug (10519439)
B2
ADAPTER
BNC plug to UHF jack (8109698)
B3
CABLE
36-in., RG-58/U; BNC plug and double banana plug terminations
(7907471).
B4
EXTENSION
Tektronix, Type 013-0055-00; 16 pins, extends TI from oscilloscope to
facilitate adjustments (013-0055-00).
B5
STANDARDIZER
Variable 5 to 80 pF (SKD-4850-44)
3