Aktakom ACM-2031 User Manual page 8

Ac/dc clamp meter
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6."V:Hz
This is positive input terminal for volt, diode,
resistance,capacitance,frequency,dutycycle ,Con
tinuity and temperature measurement.
connection is made to it using the red test lead.
7."COM" jack
This is negative (ground) input terminal for all
measurements except current.
Connection is made to it using the black test lead.
8.ZERO button
Push the button to get relative measurement
mode, "' ZERO " annunciate display on LCD. But
store the displayed reading as a reference value.
In the Relative mode, the value shown on the
LCD is always the difference between the stored
reference value and the present reading. If the
new reading is the same as the reference value,
the display will be zero.
9.FUNC. button
In :
range, push the button to select
: or
or
of function and measurement unit will appear on
the LCD. In current range, press this button to
select AC current or DC current.
10.Power Switch
A push  push switch is used to turn the meter on
" Jack
or
function. Different symbol

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