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QuickSpecs

HP t820 Flexible Series Thin Client

Technical Specifications – Power

c04154327 — DA – 14665 Worldwide — Version 9 — November 24, 2014

Page 19

Unit Environment and Operating Conditions

General Unit Operating Guidelines

 Keep the computer away from excessive moisture, direct moisture and the extremes of heat and cold, to ensure that unit

is operated within the specified operating range.

 Leave a 10.2 cm (4 in) clearance on all vented sides of the computer to permit the required airflow.

 Never restrict airflow into the computer by blocking any vents or air intakes.

 Do not stack computers on top of each other or place computers so near each other that they are subject to each other's

re-circulated or preheated air.

 Occasionally clean the air vents on the front, back, and any other vented side of the computer. Lint, dust and other

foreign matter can block the vents and limit the airflow.

 If the computer is to be operated within a separate enclosure, intake and exhaust ventilation must be provided on the

enclosure, and the same operating guidelines listed above will still apply.

Temperature Range

Operating: 50° to 95° F (10° to 35° C)*

Non-operating: –22° to 140° F(–30° to 60° C)

Relative Humidity

Operating: 10% to 90% (non-condensing at ambient)

Non-operating: 5% to 95% (non-condensing at ambient)

Maximum Altitude

(unpressurized)

Operating: 10,000 ft (3048 m)

Non-operating: 30,000 ft (9144 m)

*Operating temperature is de-rated 1.0 deg C per 300 m (1000 ft) to 3000 m (10,000 ft) above sea level, no direct sustained

sunlight. Maximum rate of change is 10 deg C/Hr. The upper limit may be limited by the type and number of options installed.

Power Supply

Standard Efficiency

N/A

High Efficiency*

Integrated graphics:

135W active PFC 87% efficient

Discrete graphics:

180W active PFC 87% efficient

Operating Voltage Range

90 - 264 VAC

Rated Voltage Range

100 - 240 VAC

Rated Line Frequency

50/60 Hz

Operating Line Frequency Range

47 – 63 Hz

Rated Input Current

N/A

Rated Input Current with Energy Efficient*

Power Supply

135W: 2.4A

180W: 2.9A

Current Leakage

(NFPA 99)

< 250 µA

External Power Adapter

Dimensions

6.7 x 2.6 x 1.5 in

Total Cord Length

12 ft 8 in

*High efficiency power supply is a requirement for ENERGY STAR qualification in conjunction with a select range of processors and

modules

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