Sanwa EM7000, Instruction Manual, Page: 50 / 68

DRAWING No.EM7000 09-1306 2040 2040
6-6-3 DCA (DC 6 A)
1) Objects of measurement
DC current below 6 A in compact power supply circuits, etc.
2) Measurement procedure
Insert the red plug of test
leads into the DC 6 A+/
AC 6 A input terminal,
and the black plug into
the –COM terminal.
Turn the function/range
selector to the DC 6 A
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 black DCV
•
A scales.
Connect the black test pin to the negative potential side of the
circuit to be measured, and the red test pin to the positive
potential 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 black DCV
•
A scale by
multiplying 0 - 30 figures by 0.2. The unit is 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 DC 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.
— 46 —
0
A
•
V
C
D
DC6A
SW
power supply
Load
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