TB 9-4910-558-24
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. The following peculiar accessory is as required for this calibration: Dc Power
Supply, Dynamic Industries Corp., Model 55314-104054 (MIS-38956).
Table 2. Minimum Specifications of Equipment Required
Manufacturer and model
Common name
Minimum use specifications
(part number)
CALIBRATOR
Dc volts range: 0 to 24 V dc
Fluke, Model 5720A (5720A) (p/o
Accuracy: 0.625%
MIS-35947)
DC CURRENT SHUNT
Dc amperes range: 0 to 25 A
Guildline, Model 9711 (7912323)
1
Accuracy:
Range: 9.75 to 57.50 mV
Hewlett Packard, Model 3458A
1
Accuracy:
(3458A)
Temperature range: 0 to 100C
THERMOMETER
Azonix, Model A1012
Accuracy: 1.25C
(MIS 38958) w/Temperature Probe
Instrulab, Model 4101-10X
1Combined
accuracy of dc current shunt and multimeter: 1.8% to 2.1%.
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 TM 9-4910-755-13&P 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.
