Lenovo ThinkCentre A52 Hardware Maintenance Manual - Page 48

Dimensions, Weight, Environment, Electrical, input, output, Airflow, Acoustical, noise-emission, - 8297

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Types 8288, 8297, 8326, 8329, 8342, and 8380 This section lists the physical specifications. Dimensions Height: 400 mm (15.7 in.) Width: 175 mm (6.9 in.) Depth: 432 mm (17.0 in.) Weight Minimum configuration: 8.17 kg (18 lb) Maximum configuration: 10.21 kg (22.5 lb) Environment Air temperature: System on: 10° to 35°C (50° to 95° F) System off: 10° to 60°C (50° to 140° F) Maximum altitude: 914 m (3000 ft) Note: The maximum altitude, 914 m (3000 ft), is the maximum altitude at which the specified air temperatures apply. At higher altitudes, the maximum air temperatures are lower than those specified. Humidity: System on: 10% to 80% System off: 10% to 90% Electrical input Input voltage: Low range: Minimum: 100 V ac Maximum: 127 V ac Input frequency: 50/60 Hz Voltage switch setting: 115 V ac High range: Minimum: 200 V ac Maximum: 240 V ac Input frequency: 50/60 Hz Voltage switch setting: 230 V ac Input kilovolt-amperes (kVA) (approximate): Minimum configuration as shipped: 0.10 kVA Maximum configuration: 0.26 kVA Note: Power consumption and heat output vary depending on the number and type of optional features installed and the power-management optional features in use. Heat output (approximate) in British thermal units (Btu) per hour: Minimum configuration: 246 Btu/hr (76 watts) Maximum configuration: 785 Btu/hr (230 watts) Airflow Approximately 2.45 cubic meters (66 cubic feet per minute) maximum Acoustical noise-emission values Average sound-pressure levels: At operator position: Idle: 31 dBA Operating: 35 dBA At bystander position - 1 meter (3.3 ft): Idle: 28 dBA Operating: 32 dBA Declared (upper limit) sound-power levels: Idle: 4.1 bels Operating: 4.4 bels Note: These levels were measured in controlled acoustical environments according to the procedures specified by the American National Standards Institute (ANSI) S12.10 and ISO 7779 and are reported in accordance with ISO 9296. Actual sound-pressure levels in a given location might exceed the average values stated because of room reflections and other nearby noise sources. The declared sound-power levels indicate an upper limit, below which a large number of computers will operate. 42 Hardware Maintenance Manual

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Types
8288,
8297,
8326,
8329,
8342,
and
8380
This
section
lists
the
physical
specifications.
Dimensions
Height:
400
mm
(15.7
in.)
Width:
175
mm
(6.9
in.)
Depth:
432
mm
(17.0
in.)
Weight
Minimum
configuration:
8.17
kg
(18
lb)
Maximum
configuration:
10.21
kg
(22.5
lb)
Environment
Air
temperature:
System
on:
10°
to
35°C
(50°
to
95°
F)
System
off:
10°
to
60°C
(50°
to
140°
F)
Maximum
altitude:
914
m
(3000
ft)
Note:
The
maximum
altitude,
914
m
(3000
ft),
is
the
maximum
altitude
at
which
the
specified
air
temperatures
apply.
At
higher
altitudes,
the
maximum
air
temperatures
are
lower
than
those
specified.
Humidity:
System
on:
10%
to
80%
System
off:
10%
to
90%
Electrical
input
Input
voltage:
Low
range:
Minimum:
100
V
ac
Maximum:
127
V
ac
Input
frequency:
50/60
Hz
Voltage
switch
setting:
115
V
ac
High
range:
Minimum:
200
V
ac
Maximum:
240
V
ac
Input
frequency:
50/60
Hz
Voltage
switch
setting:
230
V
ac
Input
kilovolt-amperes
(kVA)
(approximate):
Minimum
configuration
as
shipped:
0.10
kVA
Maximum
configuration:
0.26
kVA
Note:
Power
consumption
and
heat
output
vary
depending
on
the
number
and
type
of
optional
features
installed
and
the
power-management
optional
features
in
use.
Heat
output
(approximate)
in
British
thermal
units
(Btu)
per
hour:
Minimum
configuration:
246
Btu/hr
(76
watts)
Maximum
configuration:
785
Btu/hr
(230
watts)
Airflow
Approximately
2.45
cubic
meters
(66
cubic
feet
per
minute)
maximum
Acoustical
noise-emission
values
Average
sound-pressure
levels:
At
operator
position:
Idle:
31
dBA
Operating:
35
dBA
At
bystander
position
-
1
meter
(3.3
ft):
Idle:
28
dBA
Operating:
32
dBA
Declared
(upper
limit)
sound-power
levels:
Idle:
4.1
bels
Operating:
4.4
bels
Note:
These
levels
were
measured
in
controlled
acoustical
environments
according
to
the
procedures
specified
by
the
American
National
Standards
Institute
(ANSI)
S12.10
and
ISO
7779
and
are
reported
in
accordance
with
ISO
9296.
Actual
sound-pressure
levels
in
a
given
location
might
exceed
the
average
values
stated
because
of
room
reflections
and
other
nearby
noise
sources.
The
declared
sound-power
levels
indicate
an
upper
limit,
below
which
a
large
number
of
computers
will
operate.
42
Hardware
Maintenance
Manual