TB 9-5210-208-24
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
Length measurement
Range:
Vernier
Class 1: 0 to 48 in.
Class 2: 0 to 900 mm
Class 3: 0 to 36 in. and 0 to 900 mm
Accuracy:
r 0.001 in. per each 6 in. of beam length
r0.02 mm per each 300 mm of beam length
Length measurement
Accuracy:
Dial
0.001 in. per each 6 in. of beam length
r0.02 mm per each 150 mm of beam length
Length measurement
Accuracy
Digital
r0.001 in. per each 6 in of beam length
r0.02 mm per each 300 mm of beam length
EQUIPMENT REQUIREMENTS
calibration procedure. This equipment is issued with Secondary Transfer Calibration
Standards Set 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
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 parentheses.
5. Accessories Required. The accessories required for this calibration are common
usage accessories, issued as indicated in paragraph 4 above, and are not listed in this
calibration procedure.
Table 2. Minimum Specifications of Equipment Required
Common name
Minimum use specifications
Manufacturer and model (part number)
GAGE BLOCK SET
Range: 0 to 48 in.
(7915946)
NO 1.
Accuracy: Grade 3
(8-PIECE SET)
GAGE BLOCK SET
Range: 0.050 to 4 in.
(7901961)
NO. 2
Accuracy: Grade 3
(81-PIECE SET)