It is used to perform simple voltage measurements. The tester con-
sists of two probes. The negative measuring line is connected to
ground; the positive measuring line is connected to the relevant
measuring point.
When voltage is applied, the corresponding LED lights up.
This tester is a multimeter and can be used to measure e.g. cur-
rent, voltage and resistance. Furthermore, depending on the
design you must carry out transistor and frequency tests.
In order to avoid damage:
n
the range selector switch must be correctly set for the corre-
sponding measurement.
n
the test cable must be plugged into the correct socket.
n
the voltage type (AC/DC) must be set.
n
In case of direct voltage the correct polarity must be assured.
n
the measuring range should be chosen higher at the beginning
of the test.
n
In order to avoid any influence on the circuitry to be measured,
the internal resistance of the voltage tester should be as high
as possible.
Resistance and continuity measurement with multimeter
The continuity tester of the multimeter can be used to measure
whether there is a connection between 2 measuring points.
Voltage tester
S-ELE-0044
Fig. 37: Voltage tester
Multimeter
Fig. 38: Multimeter
Fig. 39
Electric systems – Basic principles
BW 900-50
65
Go
to
Discount-Equipment.com
to
order
your
parts
