TB 55-4920-431-35
Section II
EQUIPMENT REQUIREMENTS
4.
Equipment Required. Table 2 identifies the specific equipment to be used
in this calibration procedure. This equipment is issued with Secondary Transfer
Calibration Standards Sets, AN/GSM-286. 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
provide a four-to-one ratio between the standard and TI.
5.
Accessories Required. The accessories listed in table 3 are issued as
indicated in paragraph 4 above and are used in this calibration procedure. When
necessary, these items may be substituted by equivalent items, unless specifically
prohibited.
6.
Special Equipment Required.
Table 4 identifies special equipment required
for the calibration procedure.
Table 2.
Minimum Specifications of Equipment Required
Manufacturer,
Minimum Use
Model, and
Item
Common Name
Specifications
Part Number
A1
DIGITAL
Range:
27.5 to 28.5
Hewlett-Packard
vdc
Model 3490A
Accuracy: 0.45%
(Option 060)
A2
ELECTRONIC
Range:
405Hz to
Hewlett-Packard
COUNTER
5693 Hz
Model 5345A
Accuracy: 0.05%
(MIS 28754 Type 1)
A3
TEST
Range:
405Hz to
Hewlett-Packard
5693Hz
Model 652A
(MIS-10224)
A4
DC POWER
Range:
27.5 to
NJE,
SUPPLY
28.5 vdc
Model CS36CR30
(7907346-2)
3