Characteristic
Temperature
Operating
Non-operating
Altitude
Operating
Non-operating
Humidity
Non-operating
Electromagnetic Interference (EMI)
Radiated Interference
Conducted Interference
Vibration
Operating
Shock
Operating and non-operating
Transportation
Package vibration
Package drop
Performance Requirement
–15° C to +55° C
–55° C to +75° C
15,000 feet maximum
Five cycles (120 hours) of
Method 106B
150 kHz to 1000 MHz
150 kHz to 25 MHz
Mil-Std-202C,
Resonant searches along all 3 axes at 0.025
inches, frequency varied fram 10-55 c/s. All
major resonances must be above 55 c/s.
One shock of 30 G, one-half sine, 11 milli-
second duration each direction along each
major axis.
Meets National Safe Transient type of test
when correctly packaged. One hour vibra-
tion slightly in excess of 1 G.
30 inch (18-inches for R491) drop on any
corner, edge or flat surface.
Supplemental Information
Automatic resetting thermal cutout protects
instrument from overheating.
Altitude referred to sea level. Operating
temperature capabilities decline 10 C per
1000 feet altitude above sea level.
May be tested during non-operating tem-
perature test.
Exclude freezing and vibration.
Tested within an electrically shielded enclo-
sure with the CRT mesh filter installed.
Within the limits described in MIL-I-6181D,
Figs. 7, 8, 14 and 16.
Conducted interference through the power
cord.
Instrument secured to vibration platform
during test. Total vibration time, about 55
minutes.
Guillotine-type shocks. Total of 12 shocks.
Package should just leave vibration surface
1-4
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