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DR4300 Owners Manual
Expanded operating temperature
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Table 24. Gaseous contamination specifications
The copper coupon corrosion rate is <300 Å/month per Class G1 as defined by ANSI/ISA71.04-1985. The silver coupon
corrosion rate is <200 Å/month as defined by AHSRAE TC9.9.
Gaseous contamination
Specifications
Copper coupon corrosion rate
<300 Å/month per Class G1 as defined by ANSI/
ISA71.04-1985.
Silver coupon corrosion rate
<200 Å/month as defined by AHSRAE TC9.9.
NOTE:
Maximum corrosive contaminant levels measured at ≤50% relative humidity.
Standard operating temperature
Table 25. Standard operating temperature specifications
The standard operating temperature for altitude less than 950 metres or 3117 feet ranges from 10°C to 35°C (50°F to 95°F) with
no direct sunlight on the equipment. Note: The 2.5-inch hard drive chassis supports a maximum of 145 W processors.
Standard operating temperature
Specifications
Continuous operation (for altitude less than
950 m or 3117 ft)
10°C to 35°C (50°F to 95°F) with no direct sunlight on the
equipment.
Expanded operating temperature
Table 26. Expanded operating temperature specifications
When the system is in continuous operation, the expanded operating temperature ranges from 5°C to 40°C at 5% to 85% RH
with 29°C dew point. NOTE: Outside the standard operating temperature (10°C to 35°C), the system can operate continuously
in temperatures as low as 5°C and as high as 40°C. For temperatures between 35°C and 40°C, de-rate maximum allowable
temperature by 1°C per 175 m above 950 m (1°F per 319 ft). When the system is operating at < 1% of annual operating hours,
the expanded operating temperature is –5°C to 45°C at 5% to 90% RH with 29°C dew point. NOTE: Outside the standard
operating temperature (10°C to 35°C), the system can operate down to –5°C or up to 45°C for a maximum of 1% of its annual
operating hours. For temperatures between 40°C and 45°C, de-rate maximum allowable temperature by 1°C per 125 m above
950 m (1°F per 228 ft).
Expanded operating temperature
Specifications
Continuous operation
5°C to 40°C at 5% to 85% RH with 29°C dew point.
NOTE:
Outside the standard operating temperature
(10°C to 35°C), the system can operate continuously
in temperatures as low as 5°C and as high as 40°C.
For temperatures between 35°C and 40°C, de-rate
maximum allowable temperature by 1°C per 175 m above
950 m (1°F per 319 ft).
≤ 1% of annual operating hours
–5°C to 45°C at 5% to 90% RH with 29°C dew point.
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