CHAUVIN ARNOUX CA-F405 [3/8] The quality of trms measurements whatever the type of signal

The Quality of TRMS Measurements,

Whatever the Type of Signal

TRMS Version

of Min and Max!

The Min and Max are TRMS values calculated

over a duration of up to 100 ms.

This feature is particularly useful for sizing an

installation, the diameter of a power cable, a

thermal protection device, etc.

Peak+ and Peak-

Calculated over a period of 1 ms, the Peak+

and Peak- values help to characterize the

distortion affecting the signal measured.

For example, they may reveal variations in the

installation’s behaviour or even malfunctions.

THD and Harmonics

When seeking the causes of a malfunction,

knowledge of the overall signal distortion

(THD

or THD

) or frequential distortion

(harmonic analysis) helps you to identify the

precise corrective solution required: ltering,

oversizing, etc.

Harmonic analysis also contributes to re

prevention.

∆REL,

for Quick Evaluation

Comparison with a reference quantity is a

quick way of evaluating and analysing your

results. A signal’s variations can be measured

differentially or relatively. The rst method

indicates the difference between the value

of reference and the value measured. The

second method indicates the proportion.

The ∆REL function can be applied to any type

of measurement and can be used jointly with

the Min, Max and Peak functions.

INNOVATION FROM

CHAUVIN ARNOUX

The function

makes it easy to analyse both

the inrush of a single motor

and the inrush of a set of

machines in operation.

The clamp automatically

determines the type of signal

and the level of current in the

installation and then adapts the

algorithm and measurement

mode to capture the expected

overcurrent.

Indeed, correct sizing of

electrical installations in

terms of both the conductors

and the protective systems

implemented is a recurrent

problem.

Overcurrents usually occur

when an installation or a

machine is started up or when

machinery is subjected to

heavy loads.

The

function enables you to size the

installation correctly.

A range offering unprecedented analytical and diagnostic functions!

CHAUVIN ARNOUX CA-F405 [3/8] The quality of trms measurements whatever the type of signal

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