TB 9-4933-220-50
Section II. EQUIPMENT REQUIREMENTS
4. Equipment Required
meet or exceed the minimum use specifications listed in
to-one accuracy ratio between the standard and TI.
calibration procedure. This equipment is issued with
secondary transfer standards calibration set, NSN 6695-
5. Accessories Required
00-621-7877, and secondary transfer standards
calibration set AN/GSM-256, NSN 6695-00-525-8175,
The accessories listed in table 3 are issued with
and is to be used in performing this calibration
secondary transfer standards calibration set, NSN 6695-
procedure.
Alternate items may be used by the
00-621-7877, and secondary transfer standards
calibrating activity when the equipment listed in table 2 in
calibration set AN/GSM-256, NSN 6695-00-525-8175,
not available. The items selected must be verified to
and are to be used in this calibration procedure. When
perform satisfactorily prior to use and must bear
necessary, these items may be substituted by equivalent
evidence of current calibration. The equipment must
items unless specifically prohibited.
Table 2. Minimum Specifications of Equipment Required
Manufacturer, model,
Item
Common name
Minimum use specifications
and part number
Level A
AN/GSM-256
A1
DC VOLTAGE
Range: 0.95 to 31.5v
John Fluke,
John Fluke
STANDARD
Accuracy: 1.25%
model 332A
model 760A
(7911393)
(760A)
3
