Lenovo ThinkCentre A52 User Manual - Page 46
Types 8099
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Types 8099, 8116, 8155, 8156, 8157, 8158, 8159, 8160, 8215, 9210, and 9211 This section lists the physical specifications. Dimensions Width: 310 mm (12.2 in.) Height: 85 mm (3.35 in.) Depth: 358 mm (14.1 in.) Heat output (approximate) in British thermal units (Btu) per hour: Minimum configuration: 256 Btu/hr (75 watts) Maximum configuration: 768 Btu/hr (225 watts) Weight Minimum configuration as shipped: 7.3 kg (16 lbs) Maximum configuration: 8.5 kg (18.7 lbs) Environment Air temperature: Operating at 0 - 3000 ft (914.4 m): 10° to 35°C (50° to 95°F) Operating at 3000 ft - 7000 ft (2134 m): 10° to 32°C (50° to 89.6°F) Airflow Approximately 16 cubic feet (0.45 cubic meters) per minute Acoustical noise-emission values Note: In this computer, fan speed is controlled by temperature, configuration, and software. Actual noise-emission values might be different from the stated values depending on the number of fans and the speed of the fans. Average sound-pressure levels: Non-operating: 10° to 43°C (50° to 110°F) At operator position (0.5 meters): Humidity: Idle: 29 dBA Operating: 8% to 80% Operating: 34 dBA Non-operating: 8% to 80% At bystander position - 1 meter (3.3 ft): Transit: 8% to 90% Idle: 26 dBA Maximum altitude: 7000 ft (2133.6 m) Operating: 29 dBA Electrical input Input voltage: Low range: Declared (upper limit) sound-power levels: Idle: 4.0 bels Operating: 4.3 bels 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: 240V ac Input frequency: 50/60 Hz 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. Voltage switch setting: 230 V ac Input kilovolt-amperes (kVA) (approximate): Minimum configuration as shipped: 0.09 kVA Maximum configuration: 0.23 kVA 40 Hardware Maintenance Manual