TB 9-6625-2170-35
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-287. Alternate items may be used by the calibrating activity. The
items 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 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)
CALIBRATOR
Range: 3 mV to 100 V
John Fluke, Model 5720A (p/o MIS-
35947)
Accuracy:1 0.5%
Range: 4.98 to 5.51 V dc
John Fluke, Model 8840A/AF-05
(AN/GSM-64D)
Accuracy: 0.476%
Tektronix, Type SG-505
Amplitude range: -10 to 0 dBm
(MIS-30526/11)
Distortion: <0.005%
Capabilities
(OS-303/G)
Vertical: 200 mV/div dc coupling
Horizontal: 200 ms/div
Range: 0.001
ESI, Model DT72A (7915908)
Frequency: 1 kHz
Accuracy:1
Range: 1 mV to 1.58 V
John Fluke, Model 8922A/AA
Accuracy: 0.75%
(8922A/AA)
1Combined accuracy of calibrator and ratio transformer for 100 V, 1 kHz output is 0.5%.
SECTION III
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