Agilent Technologies U1270 Series Manual do Utilizador descarregar pdf (Página 3)

Low Pass Filter (LPF)

The U1270 series offers a 1 kHz LPF

or Low Pass Filter to provide accurate

Variable Frequency Drive (VFD) output

measurement. This function eliminates

high frequency noise and harmonics.

This ensures the efficiency of your

motor filter as well.

Key Functions

Figure 2. Comparison of voltage output from industrial motor VFD without and with Low Pass Filter functionality.

Smart Ω

The U1272A and U1273A provide an

additional 30 Ohm range for low resis-

tance measurement. This SmartΩ

function is available for ranges of

30Ohm to 300kOhm. It enhances

measurement accuracy with offset

compensation by removing residual

DC voltages of up to 1000mV induced

by ground current and thermal EMF.

This function also enables ‘live’

resistance measurement without

isolating the measurement circuit.

With this, you will be able to obtain

leakage current using the secondary

display.

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