MIL-PRF-83287G
4.5.11 Salt spray (corrosion) (see 3.14). Indicators shall be tested in accordance with of MIL-STD-202
method 101. The following detail and exception shall apply:
a. Test condition B.
b. After exposure: Indicators shall be washed and air dried for 24 hours. Indicators shall then meet the
operating voltage requirements (see 3.7).
4.5.12 Moisture resistance (see 3.15). Indicators shall be tested in accordance with method 106 of MIL-STD-202.
The following detail and exception shall apply:
a. After high humidity: The insulation resistance shall be 100 megohms, minimum.
b. After drying (see 3.15).
4.5.13 Resistance to soldering heat (indicators with solder terminals only) (see 3.16). Indicators shall be tested in
accordance with method 210 of MIL-STD-202. The following details shall apply:
a. Depth of immersion in molten solder: One-half the exposed length of the terminal.
b. Test condition B.
c. Cooling time: 30 to 60 seconds.
d. Inspection after test: The indicator shall transfer when rated voltage is applied.
4.5.14 Magnetic susceptibility (see 3.17). Indicators shall be slowly rotated 360 degrees around each of three
mutually perpendicular axes within a magnetic field of 15 to 18 gauss with a pause of 10 seconds every 45 degrees.
This test shall be conducted with the indicator in the "Fault" and "No Fault" positions.
4.5.15 Electromagnetic interference (see 3.18). Indicators shall be mounted in a box as shown on figure 1. Wire
shall be wrapped around the box and subjected to a 400 Hz current of sufficient magnitude to produce a 20 ampere-
turns field. This test shall be conducted with the indicator in the "Fault" and "No Fault" positions.
NOTES:
1. Dimensions are in inches.
2. Metric equivalents are given for information only.
FIGURE 1. EMI test fixture.
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