Wavecom TT040-50 Manual do Utilizador descarregar pdf (Página 22)

Wavecom Instruments Fully Integrated Test n Print Unit User Manual

Explanation of Electrical Parameters

Volts

 A volt is the unit used to measure the energy available in the electrical current of a circuit. Voltage

controls the available electrical power (wattage).

Amperes

An amp is the unit used to measure electrical current as it flows past a specified point.

Watts

 A watt is the unit used to measure the amount of actual flowing electrical energy.

Volt-Amps

 A volt-amp is the unit used to measure the apparent electrical power used by computing equipment.

Mathematically, it is expressed as volts times amps (V*A).

*Meter Mode ® is a unique function of all TnTGen4 & TnP Models.

Uses of Volt-Amp Measurement

 Because it represents the amount of energy computing systems may draw from a power grid, the VA is

used to determine the kind of wiring and circuit breakers required to support the computing equipment in

question.

Watts and VA (Detailed Explanation)

The power drawn by equipment is expressed in Watts or Volt-Amps (VA). The power in Watts is the real power

drawn by the equipment. Volt-Amps are called the "apparent power" and are the product of the voltage applied

to the equipment times the current drawn by the equipment. Both Watt and VA ratings have a use and purpose.

The Watt rating determines the actual power purchased from the utility company and the heat loading generated

by the equipment

Safety Precautions

Make sure you have a clear and safe area when powering any equipment, remove any drills bits etc

before testing any equipment. Always read equipment compliance plates.

Disclaimer

Meter Mode is to be used for quick simple indicative electrical parameter measurements. Providing

reasonably accurate readings without the need to carry any other instruments. It is not intended to

replace specific, more accurate individual test equipment, nor is its purpose to replace prescribed

testing requirements. It in doubt please consult a qualified electrician when unsure or perform proper

test procedures.

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Wavecom TT040-50 Manual do Utilizador Página 22