35
Connecting the multimeter to filter a current >300Hz
5.10.2.
Main measurement
The multimeter has a low-pass AC filter that blocks voltages or currents at undesirable frequencies.
The MLI filter is activated as follows: Setup
Measurement
Filter YES: a symbol then appears on the
screen.
The multimeter continues the measurements in the chosen mode, AC, AC+DC, or VlowZ, but the signal goes through a filter
that blocks undesirable voltages >300Hz.
The low-pass filter improves measurement performance on the composite sinusoidal signals often generated by inverters
and variable-speed motors.
Surveillance mode
5.11.
The
SURV
mode (available under
MEAS…
) monitors the variations of a signal, recor-
ding the extremes (
MIN
and
MAX
) of the main measurement and calculating its mean
(
AVG
).
For each quantity stored, the multimeter records the corresponding date and time.
This mode is active for the following functions: V, Hz, Ohm, clamp, capacitance,
temperature, and current.
The SURV look-up screen is not saved. You must take a screenshot (Print Scrn) to
record it.
Summary of Contents for Metrix MTX 3292B
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