TB 9-6625-158-24
Table 2. Minimum Specifications of Equipment Required.
Manufacturer and model
Common name
Minimum use specifications
part number)
Dc voltage:
Hewlett Packard, Model 3458A
Range: 1 mV to 20 V
(3458A)
Accuracy: 0.05%
Range: 0 Ω to 4000 Ω
Accuracy: 0.05%
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 manufacturers' manuals 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. Remove protective cover as needed to make adjustments.
Replace cover after
completing the adjustments.
b. Connect TI to 115 V ac, 60 Hz and allow 15 minute warm-up.
c. For model 11683A-H01 set INT EXT switch (rear panel) to INT.
8. Dc Output
a. Performance Check
(1) Set TI as listed in (a) through (c) below:
(a) FUNCTION switch to CALIBRATE.
(b) POLARITY switch to NORMAL.
(c) RANGE switch to 100 mW.