SECTION III CALIBRATION PROCESS

TB 9-4920-362-35

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.

Table 2. Minimum Specifications of Equipment Required

Manufacturer and model (part

Item

Common name

Minimum use specifications

number)

AUTOTRANSFORMER

Range: 115 V ac

General Radio, Model

W10MT3AS3 (7910809)

Accuracy: ±1%

DC POWER SUPPLY

Range: 28 V dc

NJE, Model CS36CR30D2

(7907346-2)

DIGITAL MULTIMETER

Range: -10.5 to +10.5 mA

Tektronix, Type DM501A

(DM501A)

Accuracy: ±1.25%

DIGITAL VOLTMETER

Range: -15.5 to +28.5 V dc

Hewlett-Packard, Model

349AOPT060 (3490AOPT060)

Accuracy: ±0.45%

Table 3. Accessories Required

Item

Common name

Description (part number)

ADAPTER

Single banana jack to pin plug (black) (7907528)

ADAPTER

Single banana jack to pin plug (red) (7907517)

LEAD

24-in., No. 18; single banana plug terminations (black) (7907498)

LEAD

24-in., No. 18; single banana plug terminations (red) (7907497)

LEAD1

Miniature pin jack with 12-in., No. 16 wire attached (fabricated locally)

LEAD2

Pin jack to single banana plug (7921032)

1Two

required.

2Three

required.

SECTION III

CALIBRATION PROCESS

6. Preliminary Instructions

a. The instructions outlined in paragraphs 6 and 7 are preparatory to the calibration

process. Personnel should become familiar with the entire bulletin before beginning the

calibration.

b. Items of equipment used in this procedure are referenced within the text by common

name and item identification number as listed in tables 2 and 3. For the identification of

equipment referenced by item numbers prefixed with A, see table 2, and for prefix B, see

table 3.

WARNING

HIGH VOLTAGE is used or exposed during the performance of

this calibration.

DEATH ON CONTACT may result if

personnel fail to observe safety precautions.