CARLO GAVAZZI EN61036 Manual do Utilizador descarregar pdf (Página 11)

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Total Harmonic Distortion

This function allows the user to en-

able the FFT analysis and the dis-

play of the total harmonic distortion

(see also “displayed measuring

pages” on page 4). Choose the “tHd”

function by means of the and

keys, to enter the menu press

; then choose if the function is

to be enabled (YES) or disabled

(NO) by means of the and

keys and confirm with .

Programming

If for example, you select the value “15 minutes”,

the instrument calculates the demand value and

updates the value every 15 minutes. See the

diagram below.

SYNCHRONIZATION OF THE POWER DEMAND

CALCULATION

The beginning of the synchronization and as a consequence

the start of the integration time counting are carried out when

the instrument switches on (W dmd and VA dmd).

Where: Pc is the contractual power

t1 is the selected integration period

CT ratio

Serial address

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 39 40

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CARLO GAVAZZI EN61036 Manual do Utilizador Página 11