Chapter A
70
PFC 500/E Instruction Manual
2 December 1999
Operating limits
The ambient temperature specification is measured at the front door inlet. The site
must have air conditioning of the correct size and placement to maintain the specified
ambient temperature range. The air conditioning must be able to handle the BTU
requirements of the PFC500/Es.
.
IMPORTANT: The operating limits for temperature and humidity must not be
exceeded inside the closed cabinet in which thePFC500/Es are mounted. Mounting
equipment in a cabinet directly above or below a PFC 500/E does not restrict air
flow to the PFC500/E, because air flows through the PFC500/E from
front-to-back. Cabinet doors must not impede the front-to-back air flow.
Shipping and storage requirements
Requirement
Description
Ambient temperature
10
°
C to 40
°
C (50
°
F to 104
°
F)
Temperature gradient
10
°
C/hr (18
°
F/hr)
Relative humidity
20% to 80% noncondensing
Elevation
2438 m (8,000 ft) at 40
°
C, 3077 m (10,000 ft) at 37
°
C
Drive module power
25 W drive slot maximum (seeking)
Requirement
Description
Ambient temperature
-40
°
C to 65
°
C (-40
°
F to 149
°
F)
Temperature gradient
-40
°
C to 65
°
C (-40
°
F to 149
°
F)
Relative humidity
10% to 90% noncondensing
Elevation
7625 m (25,000 ft.)