GE Mark VIe System Manual page 124

5.4.4 Shipping and Storage Temperature
Temperature range during equipment shipping and storage is listed in the following table.
Equipment
Mark VIe I/O pack, modules, and controllers
Control Server
Cisco network switches
5.4.5 Control Room Operating Environment
To ensure proper performance and normal operational life, the control room environment should be maintained as follows:
Note Higher ambient temperature decreases the life expectancy of any electronic component. Keeping ambient air in the
preferred (cooler) range should extend component life.
Ambient temperature (preferred): 20 to 30°C (68 to 86 °F)
Relative humidity: 5 to 95%, non-condensing
Environments that include excessive amounts of any of the following elements reduce cabinet performance and life:
• Dust, dirt, or foreign matter
• Vibration or shock
• Moisture or vapors
• Rapid temperature changes
• Acid or caustic fumes
• Power line fluctuations
• EMI or noise introduced by:
− Radio frequency signals, typically from nearby portable transmitters
− Stray high voltage or high-frequency signals, typically produced by arc welders, unsuppressed relays, contactors, or
brake coils operating near control circuits
Note Enclosures can be custom engineered for other locations if desired.
The preferred location for the control system cabinet would be in an environmentally controlled room or in the control room
itself. The cabinet should be mounted where the floor surface allows for attachment in one plane (a flat, level, and continuous
surface). The customer provides the mounting hardware. Lifting lugs are provided and if used, the lifting cables must not
exceed 45° from the vertical plane. Finally, the cabinet is equipped with a door handle, which can be locked for security.
Interconnecting cables can be brought into the cabinet through removable access plates. Convection cooling of the cabinet
requires that conduits be sealed to the access plates. In addition, air passing through the conduit must be within the acceptable
temperature range as listed previously.
5.4.6 Humidity
The ambient humidity range is 5 to 95% non-condensing.
124 GEH-6721_Vol_I_BP
Temperature Range
–40 to 85°C (-40 to 185 °F)
–40 to 65°C (-40 to 149 °F)
–40 to 85°C (-40 to 185 °F)
Refer to www.Cisco.com for more detailed product information.
GEH-6721_Vol_I Mark VIe and Mark VIeS Control Systems Volume I
Public Information