Specification—2215A Service
Table 1-2
Environmental Characteristics
Characteristics
Description
Temperature
NOTE
The instrument meets the requirements o f MIL-T-28800C, paragraphs 4.5.5.1.3,
4.5.5.1.4, and 4.5.5.1.2.2 for Type III, Class 5 equipment, except where other
wise noted.
Operating 0°C to +50°C (+32°F to +122°F).
Nonoperating
— 55°C to + 75°C (—67°F to +1670F). Tested to MIL-T-28800C paragraphs
4.5.5.1.3 and 4.5.5.1.4, except in 4.5.5.1.3 steps 4 and 5 (0°C operating test) are
performed ahead of step 2 (—55°C nonoperating test). Equipment shall remain
off upon return to room ambient during step 6. Excessive condensation shall be
removed before operating during step 7.
Altitude
Operating To 4,500 m (15,000 ft). Maximum operating temperature decreased 1 °C per
1,000 ft above 5,000 ft.
Nonoperating
To 15,000 m (50,000 ft).
Humidity (Operating and Nonoperating)
5 cycles (120 hours) referenced to MIL-T-28800C paragraph 4.5.5.1.2.2 for Type
III, Class 5 instruments. Operating and non-operating at 95% +0% to —5%
relative humidity. Operating at + 50°C and +30°C. Non-operating at +30°C to
+ 60°C.
Vibration (Operating)
15 minutes along each of 3 major axes at a total displacement of 0.015 inch p-p
(2.4 g's at 55 Hz) with frequency varied from 10 Hz to 55 Hz to 10 Hz in 1-minute
sweeps. Hold for 10 minutes at 55 Hz in each of the 3 major axes. All major
resonances must be above 55 Hz.
Shock (Operating and Nonoperating)
30 g’s, half-sine, 11-ms duration, 3 shocks per axis each direction, for a total of
18 shocks.
EMI
Meets radiated and conducted emission requirements per VDE 0871 Class B.
1-6
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