Fluke 1735 User Manual - Page 33

Measuring Functions, Overview, Meter Volts / Amps / Hz, Scope, Harmonics, Power - power meter

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Measuring Functions Power Logger Measuring Functions Overview The following information provides an overview of each rotary switch position. Meter Volts / Amps / Hz This function displays the voltage and current values at the same time, plus the frequency and the neutral-conductor current. You can also use this measuring function to get an overview of these values before you analyze the signal in detail in the other functions. Scope Scope shows the voltages, currents and the ϕ (phase) angle in oscilloscope representation as well as their instantaneous values at the cursor position. With this function you get a clear picture of current and voltage waveforms and their distortions. Harmonics Harmonics are sinusoidal voltages with a frequency that corresponds to an integer multiple of the fundamental (line) frequency. Every repetitive signal can be split into an infinite number of sine waves of different frequency and amplitude. The contribution of each of these individual sine waves is represented in a bar chart up to the 40th harmonic. The smaller the harmonics are (starting from the 2nd harmonic, the 1st is the fundamental) the better is the power network quality. Power This function indicates the values of the transferred power. At the same time you can measure active power, reactive power, apparent power, distortion power and the appropriate power factor. You can also view the active and reactive power energy. 23

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Power Logger
Measuring Functions
23
Measuring Functions
Overview
The following information provides an overview of each rotary switch position.
Meter Volts / Amps / Hz
This function displays the voltage and current values at the same time, plus the
frequency and the neutral-conductor current. You can also use this measuring
function to get an overview of these values before you analyze the signal in
detail in the other functions.
Scope
Scope shows the voltages, currents and the
ϕ
(phase) angle in oscilloscope
representation as well as their instantaneous values at the cursor position. With
this function you get a clear picture of current and voltage waveforms and their
distortions.
Harmonics
Harmonics are sinusoidal voltages with a frequency that corresponds to an
integer multiple of the fundamental (line) frequency.
Every repetitive signal can be split into an infinite number of sine waves of
different frequency and amplitude. The contribution of each of these individual
sine waves is represented in a bar chart up to the 40
th
harmonic. The smaller
the harmonics are (starting from the 2
nd
harmonic, the 1st is the fundamental)
the better is the power network quality.
Power
This function indicates the values of the transferred power. At the same time
you can measure active power, reactive power, apparent power, distortion
power and the appropriate power factor. You can also view the active and
reactive power energy.