Tektronix 2246 Operator's Manual page 16

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Specification—2246 Operators
Table 1-3
Environmental Characteristics
Characteristics | Description
STANDARD INSTRUMENT
DE NEE
Environmental Requirements | Instrument meets or exceeds the environmental requirements of
MIL-T-28800D for Type Ill, Class 3, Style D equipment.
Temperature
Operating — 10°C to +55°C (+14°F to +131°F).
-51°C to +71°C (—60 to 160°F). Tested to MIL-T-28800D
paragraphs 4.5.5.1.3 and 4.5.5.1.4, except in 4.5.5.1.3, steps 4
and 5 (-10°C operating test) are performed ahead of step 2
(-51°C non-operating test). Equipment shall remain off upon
return to room ambient during step 6. Excessive condensation -
shall be removed before operating during step 7.
Non-operating
Altitude
Operating
To
4,570 m (15,000 ft), Maximum
operating temperature
decreases 1°C/1000 ft above 5000 ft.
Non-operating To 15,240 m (50,000 ft).
Humidity (Operating and Non-operating)
Five cycles (120 hours) referenced to MIL-T-28800D paragraph
4.5.5.1.2.2, for type lil, class 3 instruments.
Non-operating and operating at 95%, 0% to +2% relative humid-
ity. Operating at +30°C and +55°C for all modes of operation.
Non-operating at +30°C to +60°C.
Radiated and Conducted Emission Required per Meets Category B.
VDE 0871
15 minutes along each of 3 major axis at a total displacement of
0.025 inch p-p (4 g at 55 Hz) with frequency varied from 10 Hz to
55 Hz in 1-minute sweeps. Hold for 10 minutes at 55 Hz in each
of the three major axis. All major resonances must be above
55 Hz.
Vibration (operating)
mann