TB 9-6625-2188-24
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.
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. The following peculiar accessories are also required for this
calibration: Extender, Tektronix, Type 067-0645-02; Power Module, Tektronix, Type TM
500 series.
Table 2. Minimum Specifications of Equipment Required
Manufacturer and model
Common Name
Minimum use specifications
(part number)
Range: 9.7 Hz to 103 kHz
Fluke, Model PM6681/656
Accuracy: 0.75%
(PM6681/656)
Range: 706 V to 9..97874 V ac
Agilent, Model 3458A (3458A)
Accuracy: 0.5%
NOTCH FILTER1
Range:10 Hz to 100 kHz
Tektronix, Type 067-0938-00
Accuracy: 2%
(7917073)
1
SPECTRUM ANALYZER
Range:20 Hz to 100 kHz
Hewlett-Packard, Model 3585A
Capability: <-102 dB
(3585A)
1Limited
deployed items.
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
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 manufacturers' manuals for this TI.
d. Unless otherwise specified, all controls and control settings refer to the TI.
HIGH VOLTAGE is used or exposed during the performance of
this calibration. DEATH ON CONTACT may result if
personnel fail to observe safety precautions.
REDUCE
OUTPUT(S) to minimum after each step within the
performance check where applicable.