Keysight Technologies Digital multimeter, U1270-series, 30000 counts, CAT III 1000 V, CAT IV 600 V U1273A 数据表
产品代码
U1273A
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.