SECTION I IDENTIFICATION AND DESCRIPTION

TB-9-6625-2356-35 Thermocouple Source Altek Model 22K Manual
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TB 9-6625-2356-35

SECTION I

IDENTIFICATION AND DESCRIPTION

1. Test Instrument Identification.

This bulletin provides instructions for the

calibration of Thermocouple Source, Altek Model 22K. The manufacturer's manual was

used as the prime data source in compiling these instructions. The equipment being

calibrated will be referred to as the TI (test instrument) throughout this bulletin.

a. Model Variations. The type, degree and range of thermocouple sources are

determined by the front panel markings.

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

hour, using the physical technique.

2. Forms, Records, and Reports

a. Forms, records, and reports required for calibration personnel at all levels are

prescribed by TB 750-25.

b. Adjustments to be reported are designated (R) at the end of the sentence in which

they appear. When adjustments are in tables, the (R) follows the designated adjustment.

Report only those adjustments made and designated with (R).

3. Calibration Description. TI parameters and performance specifications which

pertain to this calibration are listed in table 1.

Table 1. Calibration Description

Test instrument parameters

Performance specifications

Scale accuracy

Range: 500, 1000 or 2100

Accuracy: ( 0.1% of span 1)

1For

negative temperatures: 0.1% of span 3.

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; AN/GSM-287; or AN/GSM-705. 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. Where the four-to-one ratio

cannot be met, the actual accuracy of the equipment selected is shown in parenthesis.