MIL-PRF-83287G
4.5.16 Random vibration (see 3.19). Indicators shall be tested in accordance with method 214 of MIL-STD-202
unless otherwise specified (see 3.1). Test condition and curve required according to MIL-STD-202 shall be specified
on each slash sheet (see 3.1).
4.5.17 Barometric pressure (reduced) (see 3.20). Indicators shall be tested in accordance with method 105 of MIL-
STD-202. The following details and exception shall apply:
a. Method mounting: By normal mounting means.
b. Test condition D.
c. Tests during subjection to reduced pressure: Dielectric withstanding voltage shall be measured as specified
in 4.5.3, except the test voltage shall be 350 V ac rms.
d. Inspection after test (see 3.20).
4.5.18 Solderability (indicators with solder terminals only) (see 3.21). Indicators shall be tested in accordance with
method 208 of MIL-STD-202. The following details apply:
a. Number of terminations per part to be tested shall be 2.
b. Inspection after test (see 3.21).
4.5.19 Life (see 3.22). Indicators shall be cycled at a rate of 10 ±1 operations per minute for a minimum of 10,000
complete operations or as specified on individual specification sheet (see 3.1).
NOTE: Complete operation shall be defined as an electrical pulse to advance the indicator from a "No fault" to a
"Fault" display and reset from a "Fault" to "No Fault" display.
5. PACKAGING
5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in the contract or order
(see 6.2). When packaging of materiel is to be performed by DoD or in-house contractor personnel, these personnel
need to contact the responsible packaging activity to ascertain packaging requirements. Packaging requirements are
maintained by the Inventory Control Point's packaging activities within the Military Service or Defense Agency, or
within the Military Service's System Commands. Packaging data retrieval is available from the managing Military
Department's or Defense Agency's automated packaging files, CD-ROM products, or by contacting the responsible
packaging activity.
6. NOTES
(This section contains information of a general or explanatory nature that may be helpful, but is not mandatory.)
6.1 Intended use. The fault locating indicators specified herein are for military unique applications requiring
ruggedized design and allow proper performance under extreme military operating conditions, which include vibration
(20g peak), thermal shock (-65º C to +125º C), mechanical shock (100 G's), and high humidity and temperature.
Multiple weapon system use for Army, Navy and Air Force which include various aircraft, helicopters, aircraft carriers
and submarines. Commercial components are not designed to withstand these military environments.
6.1.1 Indicators. These microminiature indicators sense fault signals and provide a visual indication of the
condition of the equipment monitored. These indicators quickly pinpoint malfunctions and eliminate the need for
auxiliary test equipment to perform checks.
6.2 Acquisition requirements. Acquisition documents should specify the following:
a. Title, number, and date of this specification.
b. Title, number, and date of the specification sheet, and the PIN (see 3.1).
c. Levels of preservation and packing required (see 5.1).
d. If special or additional identification marking is required (see 5.1).
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