Monacor DMT-2505 Bedienungsanleitung Seite 9

5.1 Voltage measurement
With measurements form 42 V on be
especially careful. In no case touch the
object to be measured or the test tips.
The voltage max. to be measured
must not exceed the following values.
Otherwise there is danger of life for
the user!
DMT-2505: 1000 V
DMT-2560: 1000 V
1) Connect the red test lead to jack "V/Ω"
(8). In no case accidentally use one of
both jacks for the current measure-
ment (4 or 5)! The meter and the volt-
age source may be damaged.
2) With AC voltage measurements set
the range switch (3) into one of the
"V~" ranges, with DC voltages into
one of the "V " ranges.
3) Hold the test tips at the measuring
object, and read the measuring value
from the display.
4) If with DC voltage measurements the
negative pole is at the red test tip and
the positive pole at the black test tip, a
minus sign is displayed before the
measuring value.
5.2 Current measurement
The DC current max. to be measured
must not exceed 20 A.
The 20 A measuring current circuit is
not fused. Be especially careful in this
case.
If the red test lead is connected to one
of both jacks for the current measure-
ment (4 or 5), in no case feed voltage
to the meter. The meter and the volt-
age source may be damaged.
1) Plug the red test lead into the jack (5)
if the following currents are to be
measured:
DMT-2505: 200 mA–20 A
DMT-2560: 2–20 A
Turn the range switch (3) into position
"20" resp. "20A" of the "A " resp. "A~"
ranges.
With lower currents than indicated
above plug the red test lead into the
or 750 V~
or 700 V~
jack (4), and turn the range switch into
one of the "A " resp. "A~" ranges.
2) Open up the current circuit to be
measured and connect it with the
meter. In the 20 A range measure only
for a short time (max. 15 seconds),
otherwise the measurement becomes
inexact due to the internal heating.
3) If with DC current measurements the
negative pole is at the red test tip and
the positive pole at the black test tip, a
minus sign is displayed before the
measuring value.
5.3 Resistance measurement
The unit is overload-protected up to
250 V /~ for a short time (max.
15 seconds). In spite of this do not
measure within a circuit if it carries
voltage.
Always measure a resistor separately,
otherwise the measurement is wrong.
For this it must be soldered out of the
circuit, if necessary.
1) Connect the red test lead to jack "V/Ω"
(8).
2) Set the range switch (3) to one of the
"Ω" ranges. (Model DMT-2505: in the
200 Ω range the continuity buzzer is
activated at the same time.)
3) Hold the test tips at the resistor resp. at
the corresponding measuring points.
5.4 Continuity test
The unit is overload-protected up to
250 V /~ for a short time (max.
15 seconds). In spite of this do not
measure within a circuit if it carries
voltage.
1) Connect the red test lead to jack "V/Ω"
(8).
2) Set the range switch (3) to position
3) Hold the test tips to the corresponding
measuring points. The buzzer sounds
if the resistance is below the following
values:
DMT-2505: 50 Ω
DMT-2560: 30 Ω
GB
.
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