TB 9-6625-2011-24
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
Minimum use
Manufacturer and model
name
specifications
(part number)
FREQUENCY COUNTER
Range: 0.7 Hz to 51.5 MHz
Fluke, Model PM6681/656
Accuracy: 1%
(PM6681/656)
Range: -17.1 to 17.1 V dc
Fluke, Model 8840A/AF05
Accuracy: 0.1%
(AN/GSM-64D)
Range: 3.5 ns to 1 s
Agilent, OS-303/G (OS-303/G)
Accuracy: 3%
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 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. When indications specified in paragraphs 8 through 12 are not within tolerance,
perform the power supply check prior to making adjustments. After adjustments are made,
repeat paragraphs 8 through 12. Do not perform power supply check if all other
parameters are within tolerance.
e. Unless otherwise specified, all controls and control settings refer to the TI.
7. Equipment Setup
WARNING
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.
a. Connect to 115 V ac power source.
b. Press LINE pushbutton to ON and allow at least 30 minutes for TI to reach
operating temperature.
