TB 9-6625-1956-24
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 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
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 four-to one accuracy of the equipment selected is shown in parenthesis.
5. Accessories Required. 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
Minimum use
Manufacturer and model
Common name
specifications
(part number)
Range: 105 to 125 V ac
Ridge, Model 9020A
Accuracy: 1%
(9020A)
Range: 0 to 6 V dc
Fluke, Model 8840A/AF05
Accuracy: 0.005%
(AN/GSM-64D)
Range: 10 W to 10 mW
Agilent, Model E12-432A (MIS-30525)
POWER METER
w/thermistor mount, Agilent, Model 478A-
Accuracy: 1% FS
H75 (7915907) or 8478B (8478B)
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 table 2.
c. Unless otherwise specified, verify the result of each test and, whenever the test
requirement is not met, take corrective action before continuing with 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 control settings refer to the TI.