TB 9-6625-2181-24
Table 2. Minimum Specifications of Equipment Required - Continued
Manufacturer and model
Common name
Minimum use specifications
(part number)
Hewlett-Packard, Model 3458A
Range: .5 mV to 45 V dc
0.3%
(3458A)
Accuracy:
Range: 0 to 100 mV ac
0.08%
Accuracy:
Fluke, Model 8922A/AA
TRUE RMS
Range: 28.4 mV to 3.0 V
(8922A/AA)
Frequency: 100 Hz to 1 MHz
Resolution: 3 1/2 digits
1.25%
Accuracy:
CALIBRATION PROCESS FOR TS-402/U AND TS-402A/U
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 manufacturers' manuals and TM 11-2044 for
this TI.
d. Unless otherwise specified, all controls and control settings refer to the TI.
7. Equipment Setup
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 equipment as shown in figure 1.
b. Set all TI 600
DB LOSS switches in a horizontal position.