MD9272 Leakage Clamp TRMS Meter with Power Function Description of Functions
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Intelligent loss analysis (mA measurement only)
The clamp A-meter includes an algorithm that allows determining the cause for the current
loss. This mode is enabled only when current is measured in the mA range and TRMS
measurement is selected. In the TRMS measurement function, one or two icons will be
shown on the screen informing of the possible reason for the loss.
These two icons indicate that the loss may be partially due to
defects in the insulation and partially to the accumulation of
non-lineal loads.
Harmonic analysis function
This clamp-meter has the function of measuring the harmonic components of a certain
magnitude, showing the effective value of said harmonic on the screen together with the
harmonic number. Talking about a harmonic is in fact referring to the multiple of the
network essential. If, for example, the 3
rd
harmonic is measured with a 50 Hz network
frequency, this means measuring the magnitude (current or voltage) of the 150 Hz
component.
In this function, the measurement of the effective value of a specific harmonic within the
1 to 19 range is applied; initially it starts with harmonic 1, but this can be modified using
the + and - keys. The display shows the effective value together with the harmonic
number (to the bottom of the screen).
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