TB 9-6625-2013-40
5. Accessories Required. The accessories required for this calibration are common
usage accessories issued as indicated in 4 above, and are not listed in this calibration
procedure.
Table 2. Minimum Specifications of Equipment Required
Manufacturer and model
Common name
Minimum use specifications
(part number)
Aange: 10 m to 1.2 M
MULTIMETER
gilent, Model 3458A (3458A)
R
ccuracy: +0.025 m ; 1 and lower
A
+0.0025%; 1 to 1 M
A
Leeds and Northrup, Model 4040B
STANDARD RESISTOR Range: 10,000
(8616293)
ccuracy: +5 ppm w/test report
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. Unless otherwise specified, all control and control settings refer to the TI.
7. Equipment Setup
a. Utilizing standard resistor, characterize multimeter to obtain 24 hour manufacturer
specifications for resistance.
b. Turn each decade dial throughout its entire range at least three times.
c. Connect multimeter in a four wire measurement configuration to TI.
8. Minimum Resistance Check
a. Performance Check
(1) Set TI decade dials to 000000.0100.
.
(2) Multimeter will indicate between 0.0090
and 0.0110
b. Adjustments. No adjustments can be made.
