SECTION II EQUIPMENT REQUIREMENTS

TB 55-4920-428.35

SECTION II

EQUIPMENT REQUIREMENTS

4. Equipment Required. Table 3 identifies the specific equipment to be used in this calibration pro-

cedure. 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 3 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 3. The accuracies listed in table 3 provide a four-to-one ratio between the standard and

TI.

5. Accessories Required. The accessories listed in table 4 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.

Table 3. Minimum Specifications of Equipment Required

(Modified or Not Modified Test Set)

Manufacturer,

Model, and

Minimum Use

Part Number

Specifications

Item

Common Name

General Radio

115 to l17 vac

Range:

AUTOTRANSFORMER

Model

Accuracy:

±1.0%

(Variable Power

W10MT3AS3

Transformer)

7910809

NJE

0 to 5.0 vdc

DC POWER SUPPLY

Range:

Model

CS36CR30

7907346-2

Hewlett-Packard

395 to 405 Hz

ELECTRONIC

Range:

Model

Accuracy:

±.2%

COUNTER

5345A

(MIS 28754 Type 1)

Hewlett-Packard

DIGITAL

115 to l17 vac

Range:

Model 3456A

+2.0 vac

Accuracy:

MULTIMETER