TB 9-6625-2227-35
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-286. 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.
Table 2. Minimum Specifications of
Equipment Required
Manufacturer and model
Common name
Minimum use specifications
(part number)
CALIBRATOR
Ac voltage:
John Fluke, Model 5700A/CT (p/o
Range: 190.0 mV to 1000 V ac
MIS-35947); w/power amplifier
John Fluke, Model 5725A (5725A);
Accuracy: .118%
W/ac divider, John Fluke, Model
Dc voltage:
7405A-2407 (7405A-4207)
Range: 190.0 mV to 1100 V dc
Accuracy: .039%
Dc current:
Range: 190 A to 1900 mA
Accuracy: .1%
Range: 10.01Ω to 1000 MΩ
Accuracy: .1%
Range: 1.000 MΩ to 10 MΩ
Accuracy: .25%
Range: 7.00 V dc
Hewlett-Packard, Model 3458A
Accuracy: .036%
(3458A)
Range: 9980 to 10020 Hz
Accuracy: 0.05%