Black & Decker em100b instruction manual Howelectricity is Measured, How Electricity is Measured

90539499 01 EM100B.qxd 7/7/08 10:05 AM Page 42

12 HOWELECTRICITY IS MEASURED

How Electricity is Measured

Power is the ability to do work. Electric power is measured in Watts (W), and for large values, in kilowatts (1000 Watts, or kW). A typical incandescent light bulb consumes 60 Watts. A typical microwave oven consumes 1 to 2 kilowatts.

Energy is power used over a period of time. Electric energy is measured in kilowatt-hours (kWh). If you leave a 60W light on for one hour, it consumes 60 Watt-hours, or 0.06 kWh. If you leave a 2 kW microwave oven on for 15 minutes, it consumes 0.5 kWh.

13 TECHNICALSPECIFICATIONS

Power

Display	2 AA Alkaline Batteries (LR6 or equivalent)
Sensor	2 AA Alkaline Batteries (LR6 or equivalent)
	2 AA Lithium Batteries for temperatures consistently
	below 32°F (0 °C)
Wireless Communications
Frequency	433.92MHz
Update Rate	Approximately every 30 seconds
Range	Up to 60 ft. (20m) through a single external wall
Operating Temperature Range
Display	50°F to 113°F (10°C to 45°C) . For indoor use only
Sensor	-40°F to 140°F (-40°C to 60°C)
Performance
Minimum power measurement		300W
Power Resolution		100W
Cumulative Energy Measurement error		<2% for electromechanical meter
		<0.2% for electronic meter

FCC INFORMATION

FCC Class B Part 15

This device complies with part 15 of the FCC Rules.

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

•Reorient or relocate the receiving antenna.

•Increase the separation between the equipment and receiver.

•Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

•Consult the dealer or an experienced radio/TV technician for help.

Industry Canada Certification

Operation is subject to the following two conditions:

•This device may not cause harmful interference, and

•This device must accept any interference received, including interference that may cause undesired operation.

13 TECHNICALSPECIFICATIONS

Service Information

Black & Decker offers a full network of company-owned and authorized service locations throughout North America. All Black & Decker Service Centers are staffed with trained personnel to provide customers with efficient and reliable power tool service.

Whether you need technical advice, repair, or genuine factory replacement parts, contact the Black & Decker location nearest you.

To find your local service location, refer to the yellow page directory under "Tools— Electric" or call: 1-800-544-6986.

42 43