Current Measurement - VOLTCRAFT VC171 Bedienungsanleitung

h) Current measurement
This measuring function is suitable for measuring mains current.
To prevent possible electric shock, fire or personal injury, switch off the power supply
of the circuit, and then connect the DMM to the circuit in series before measuring the
current.
If the range of the measured current is
unknown, always start at the highest
measurement range and switch down to
lower ranges if needed.
There are fuses inside "10 A" and "mA μA"
input terminals. Do not connect the test
leads to circuits in parallel.
A warning will sound when measured
values are out of range >10 A.
Measuring >5 A must only be performed for
max. 30 seconds and at 15 minute intervals.
1. Set the function dial to µA , mA , or A , the
corresponding unit of measurement will appear on
the display.
2. Short press the SEL button to cycle through "DC",
"AC".
3. Connect the test leads to the terminals:
- Red test lead to the
minal.
- Black test lead to the COM terminal.
4. Connect the test lead probes to the circuit in se-
ries.
5. Read the value on the display.
- DC current: The polarity is shown together with
the measured value.
- AC current: Values are given in true RMS.
6. When finished measuring, disconnect the test
leads, power the circuit down and switch the DMM power OFF.
or 10A max ter-
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