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6-6-4 ACA (AC 6 A)
1) Objects of measurement
AC current below 6 A in compact power supply circuits, etc.
2) Measurement procedure
Insert the red plug of
test leads into the
power supply
DC 6 A+/AC 6 A input
AC6A
SW
Load
terminal, and the black
plug into the –COM
terminal.
Turn the function/range
selector to the AC 6 A
AC6A
range at the lower center.
Turn on the power switch
of this unit (power ON:
Lamp blinks).
Turn the electrical zero adjuster (ZERO ADJ) to adjust the
pointer to the zero position of red AC 6 A scale at the bottom.
Connect the black test pin to a measuring point on one side of
the circuit to be measured, and the red test pin to a measuring
point on another side through the load (in series).
(To ensure safety, turn off the power switch of the circuit to be
measured before the test pins are connected, and after that,
turn on the power switch of the circuit to be measured.)
Read the meter indication on red AC 6 A scale and 0 - 6
figures in a unit of A (ampere).
Detach the test pins from the circuit to be measured.
Turn off the power switch (power OFF: Lamp blinking goes off).
The continuous measurable time of the current 3 - 6 A is within
30 seconds as the shunt resistor in this unit overheats.
The internal resistance of the AC 6 A range is very small and
therefore if a voltage is applied by mistake to this range, very
large current will flow, causing a danger. Though this current is
shut off by the built-in fuse (6.3 A), take care not to make a
wrong measurement.
Further, observe the same precautions as those for the
measurement of DC current (DCA ).
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DRAWING No.EM7000 09-1306 2040 2040