TB 9-5975-219-24
EQUIPMENT REQUIREMENTS
4. Equipment Required. Table 2 identifies the specific equipment to be used in this
calibration procedure. This equipment is issued with Secondary Transfer Calibration
Standards Set, AN/GSM-286; AN/GSM 287; or AN/GSM 440. Alternate items may be used
by the calibrating activity. The item selected must be verified to perform satisfactorily
prior to use and must bear evidence of current calibration. The equipment must meet or
exceed the minimum use specifications listed in table 2. The accuracies listed in table 2
provide a four-to-one ratio between the standard and TI.
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 also required for this calibration:
Automated Test Equipment (ATE) PN# 13625170 or Acceptance Test Equipment (ATE)
PN# 13675099, Instrument controller, or any computer with a standard serial port.
Table 2. Minimum Specifications of Equipment Required
Manu(acturer and model
f
Common name
Minimum use specifications
part number
A
CALIBRATOR
Range:
32 V dc
Fluke, Model 5720A (5720A) (p/o
ccuracy: 0.5%
MIS-35947); w/ amplifier, Fluke
5725A/AR (5725A/AR)
Range:
21 V ac
Accuracy: 1.5%
A
Range:
45 V dc
Fluke, Model 8846A (8846A)
ccuracy: 0.25%
Range:
21 V ac
1.125%
Accuracy:
Range:
2 k to 1 M
Accuracy:
0.125%
A
IET Labs, HARS-LX-9-0.001
Range:
0 to 100 k
STANDARD
1.25%
ccuracy:
(HARS-LX-9-0.001)
CALIBRATION PROCESS
6. Preliminary Instructions
a. The instructions outlined in paragraph 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
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.