Herth+Buss 95980775 Bedienhinweis Seite 31

Operating Instruction
Measuring Current
1. Connect the black test lead to the COM jack.
If the current to be measured is less than
400mA, connect the red test lead to the
µAmA°C°F jack. If the current is between
400 mA and 10 A, connect the red test lead
to the "10 A" jack instead.
2. Set the range switch to desired "
" " or " " range.
3. Select ac current or dc current measure-
ment with the "FUNC" button, the dis-
play shows the relevant symbol (
).
4. Turn off power to the circuit which you
want to measured. Discharge all capaci-
tors.
5. Break the circuit path to be measured,
connect the test leads in series with the
circuit.
6. Turn on power to the circuit, then read
the display. For dc current measurement,
the polarity of the red test lead connec-
tion will be indicated as well.
Note:
If you don't know the magnitude of the
current to be measured beforehand, select
the highest range and then reduce it range
by range until satisfactory resolution is ob-
tained.
Measuring Resistance
1. Connect the black test lead to the COM
jack, and the red test lead to the
jack. (Note: The polarity of the red lead is
positive "+".)
2. Set the range switch to Ω range, "Ω" ap-
pears on the display.
31
3. Connect the test leads across the load to
be measured.
4. Read the reading on the display.
Note:
1. For resistance above 1MΩ, the meter
", may take a few seconds to stabilize read-
ing. This is normal for high resistance
measurements.
2. When the input is not connected, i.e. at
bzw. open circuit, "OL" will be displayed as
overrange indication.
3. Before measuring in-circuit resistance,
make sure that the circuit under test has
all power removed and all capacitors are
fully discharged.
Continuity Test
1. Connect the black test lead to the COM
jack, and the red test lead to the
jack. (Note: The polarity of the red lead is
positive "+".)
2. Set the range switch to
press the FUNC button until the symbol
appears on the display.
3. Connect the test leads to the circuit to be
measured.
4. If the circuit resistance is less than about
50Ω, the built-in buzzer will sound.
Note:
Before performing in-circuit continuity test,
make sure that the circuit under test has all
power removed and all capacitors are fully
discharged.
95980775
EN
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