12713020-003-2 Revision F.01 – January 2007 SSU-2000 Technical Reference 371
Chapter 9 Specifications
Operating Conditions Specifications
Operating Conditions Specifications
The unit operates at specified parameters in the operating conditions summarized in
Table 9-2.
The unit is not damaged when exposed to the levels specified in Table 9-3, but
performance is degraded. The unit returns to specified performance upon returning
to specified operating conditions.
Temperature –40°C to +72.5°C
Relative Humidity 100% Non-Immersed
Altitude 200 ft. below sea level to 13,000 ft. above sea level
Table 9-2. Normal Operating Conditions
Parameter Minimum Maximum Units Notes
Supply Voltage –38 –65 Volts DC
Temperature 0 50
°C
1
Temperature Rate of Change – 8.3
°C/Hr
Relative Humidity 5 85 % 2
Altitude –200 ft. 13,000 feet 3
1. Inlet air temperature, limited convection 15 ft./min.
2. Non-condensing over specified temperature range.
3. The maximum operation ambient temperature shall be reduced by 2°C for every 984 ft.
altitude above 4,921 ft.
Table 9-3. Exceptional Operating Conditions
Parameter Minimum Maximum Units Notes
Supply Voltage –38 –74 Volts, DC 1
Temperature –5 50 °C 2
Relative Humidity 5 90 % 3
1. The unit is not damaged if the polarity on the power leads is reversed.
2. At 30
°C max/hour rate of change.
3. Non-condensing.
Table 9-1. General Specifications (Continued)
Characteristics Specification
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