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
b. Items of equipment used in this procedure are referenced within the text by common
name as listed in paragraph 5.
c. Unless otherwise specified, verify the result of each test and, whenever the test
requirement is not met, take corrective action before continuing the calibration.
Adjustments required to calibrate the TI are included in this procedure. Additional
maintenance information is contained in the manufacturer's manual for this TI.
d. Unless otherwise specified, all controls and controls settings refer to the TI.
a. Remove TI from protective cover.
b. Clean all TI surfaces with alcohol and wipe dry with a lint-free cloth.
It is very important that surfaces be free from lint, dust, or
c. Inspect TI for chips and scratches. If edges of TI are chipped enough to make
handling hazardous, or if surfaces are scratched enough to produce erroneous readings, the
TI should be rejected.
d. Allow TI (10 minutes per inch of diameter) to stabilize to room temperature.
Make sure each TI can be identified from the others. As an aid
in identification, a temporary designation of A, B, C, or D may
be placed on the edge of each flat until this calibration is