TB 9-6625-2321-35
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 or AN/GSM-705. 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. Where the four-to-one ratio cannot be met, the
actual accuracy of the equipment selected is shown in parenthesis.
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
Table 2. Minimum Specifications of
Equipment Required
Manufacturer and model
Common name
Minimum use specifications
(part number)
CALIBRATOR
Range: .200 V dc to 200 V dc
Fluke, Model 5720A
Accuracy: 0.25%
(5700A/EP) (p/o MIS-35947);
w/amplifier, Fluke 5725A/AR
(5725A/AR)
Range: .200 V ac to 200 V ac
Accuracy: 0.75%
Range: 0 to 20 MΩ
Accuracy: 0.25%
Range: 20 to 200 mA dc
Accuracy: 0.25%
Range: 20 to 200 mA ac
Accuracy: 0.75%
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