Leakage Currents - Rothewald 10002567 Instrucciones De Uso

sufficient on a motorcycle. Slightly thicker cable is used for the
main positive leads, while the cable connecting the battery with
the starter relay is specially dimensioned, as is the starter cable
itself. Exact information on a cable's conductivity is provided by a
resistance measurement. To do this, disconnect the battery, set the
multimeter to measuring range 200 ohms, carry out a continuity
test (see above), and hold test probes against the cable entries
of the switch or plug (switch in the ON position). If a resistance
greater than approximately 0 ohms is measured, this indicates
faults, dirt or corrosion damage. Measuring the drop in voltage
can also provide information on the quality of power supply to a
component. This can be done by selecting the measuring range
20 V DC ( ) on the multimeter. Disconnect positive and
negative leads from the electrical device and hold the black test
probe against the negative lead and the red probe against the
positive lead. The measurable voltage should be 12 V – readings
below this suggest energy losses.

6.4.2 | Leakage currents

Leakage currents at the ignition switch, switches, connectors and
cables can drain a bike battery in a relatively short time. A leakage
current can be detected with a test lamp or by using the ammeter
function of the multimeter. Remember that, to avoid overheating,
your multimeter must never be subjected to loads in excess of
10 A. So on no account use it to measure current on the positive
lead to the starter, or on the thick battery cable to the starter relay,
or at the alternator. To track down the leakage current, first turn the
ignition off and disconnect the earth cable from the battery. Select
the 10 amp measuring range on the multimeter, insert the red test
lead in the 10 A jack, and the black test lead in the COM jack, then
hold the red test probe against the disconnected earth cable and
the black test probe against the battery's negative terminal. If a
current can be measured, this indicates that there is a leakage
current. The source of the leakage current can be narrowed down
by removing fuses from the bike one by one. The circuit whose
fuse cancels out the reading on the multimeter is the source of the
leakage current and must be investigated thoroughly. Faulty diodes
can also cause a leakage current by opening in an uncontrolled
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