E N G L I S H
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backward-moving direction of a
right-hand threaded screw.
5.6 Measuring Frequency
To enable the frequency
measurement mode, press the Hz
pushbutton. This Meter displays Hz,
DUAL, and AUTO.
The frequency of the current flow
is displayed. Auto (autoranging)
is applied to the bar graph, which
represents rms value of the current
flow.
When in AUTO, frequency
measurement uses an auto trigger
threshold based on one-half of the
peak current measurement. This
provides the best sensitivity and noise
immunity.
To select a fixed 40A or 400A bar
graph display (AUTO is no longer
displayed), press the RANGE
pushbutton. With a fixed 40A or 400A
scale, fixed trigger thresholds are
imposed for frequency readings. The
thresholds are 6A (40A scale) or 40A
(400A scale). The frequency display is
0.0Hz when a trigger threshold is not
reached.
Press the RANGE pushbutton for 2
seconds and then release in order
to return to autoranging mode.
This Meter acknowledges with a
beep sound and displays AUTO
on the digital display. Press the
other function (A or V or Ω or
) pushbutton to exit the frequency
mode.
5.7 Using Data Hold
To freeze the digital display reading
(HOLD is not applied to the bar
graph.), press the HOLD pushbutton.
is displayed when HOLD is
enabled.
When HOLD is used while measuring
frequency, RANGE can be changed
only for imposing trigger thresholds
of 6A on the 40A scale, and 40A on
the 400A scale.
The frequency reading will be 0.0Hz
when HOLD is released, if the trigger
threshold is not reached.
When in the HOLD mode, this
Meter function can be changed
from the held function to one of
the other functions, when HOLD is
automatically released.
Press the HOLD pushbutton again (
is no longer displayed) in order
to exit HOLD.
Press the RANGE pushbutton for 2
seconds and then release in order
to autoranging mode. This Meter
acknowledges with a beep sound and
displays AUTO on the digital display.
5.8 Measuring AC/DC Voltage
