Dell EMC XC640 Series - Particulate and Gaseous Contamination Specifications

Ambient temperature limitations
The following table lists configurations that require ambient temperature less than 35°C.
NOTE: The ambient temperature limit must be adhered to ensure proper cooling and to avoid excess processor throttling,
which may impact system performance.
Table 30. Configuration based ambient temperature restrictions
System Front Backplane Processor
Thermal Design
Power
Processor Heat
Sink
Fan Type Ambient
Restriction
XC640 Series
10 x 2.5 inch SAS/
SATA hard drives
4 x 3.5 inch SAS/
SATA and NVMe
drives
200 W, 205 W 2 pipe 1U high
performance
High performance
fan
30°C
10 x 2.5 inch SAS/
SATA and NVMe
drives(4)
165 W, 200 W, 205
W
2 pipe 1U high
performance
High performance
fan
30°C
Particulate and gaseous contamination specifications
The following table defines the limitations that help avoid any equipment damage or failure from particulate and gaseous
contamination. If the levels of particulate or gaseous pollution exceed the specified limitations and result in equipment damage
or failure, you may need to rectify the environmental conditions. Remediation of environmental conditions is the responsibility of
the customer.
Table 31. Particulate contamination specifications
Particulate contamination Specifications
Air filtration Data center air filtration as defined by ISO Class 8 per ISO 14644-1
with a 95% upper confidence limit.
NOTE: This condition applies to data center environments only. Air
filtration requirements do not apply to IT equipment designed to be
used outside a data center, in environments such as an office or
factory floor.
NOTE: Air entering the data center must have the MERV11 or
MERV13 filtration.
Conductive dust Air must be free of conductive dust, zinc whiskers, or other
conductive particles.
NOTE: This condition applies to data center and non-data center
environments.
Corrosive dust
● Air must be free of corrosive dust.
● Residual dust present in the air must have a deliquescent point less
than 60% relative humidity.
NOTE: This condition applies to data center and non-data center
environments.
Table 32. Gaseous contamination specifications
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.
26 Technical specifications