SECTION I IDENTIFICATION AND DESCRIPTION

SECTION III CALIBRATION PROCESS - TB-9-4931-541-500004

TB-9-4931-541-50 Dial Indicator Calibrator ITALL Model 700 Manual
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TB 9-4931-541-50

SECTION I

IDENTIFICATION AND DESCRIPTION

1. Test Instrument Identification.

This bulletin provides instructions for the

calibration of Dial Indicator Calibrator, ITALL Model 700. The manufacturer's instruction

manual was used as the prime data source in compiling these instructions. The dial

indicators will be referred to as the TI test instrument throughout this bulletin.

a. Model Variations. None.

b. Time and Technique. The time required for this calibration is approximately 1

hour for each TI using the physical technique.

2. Forms, Records, and Reports.

Forms, records and reports required for

calibration personnel at all levels are prescribed by TB 750-25.

3. Calibration Description. TI parameters and performance specifications that

pertain to this calibration are listed in table 1.

Table 1. Calibration Description

Test instrument parameters

Performance specifications

Range

0.0 to 1 in.

0.000150 in.

Accuracy

SECTION II

EQUIPMENT REQUIREMENT

4. Equipment Required. Table 2 identifies the specific equipment to be used in this

calibration procedure. This equipment is issued with Secondary Reference Calibration

Standard Set, NSN 4931-00-621-7878. Alternate items may be used by the calibrating

activity. 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 ratio

between the standard and TI.

5. Accessories Required. The accessories used in this calibration procedure are

furnished with length gauge (table 2). The following peculiar accessory is also required for

this calibration: Gimbaled Fixture, Model 638.

Table 2. Minimum Specifications of Equipment Required.

Common Name

Minimum Use

Manufacturer, Model and

Specifications

Part Number

LENGTH GAUGE

Range: 0.0 to 1 in.

CT 2502 (CT 2502)

Accuracy: 0.000005 in.

2 CHANGE 1

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