Herth+Buss ELPARTS 95980775 Bedienhinweis Seite 40

Operating instruction
4. The display will show the approximate for-
ward voltage drop of the diode. If the con-
nection is reversed, „OL " will be shown on
the display.
Measuring Frequency
1. Connect the black test lead to the COM
jack, and the red test lead to the
jack.
2. Set the range switch to Hz Duty position.
3. For EM130USB, press the FUNC button
until the display shows Hz. For EM130, press
the Hz/% button until the display shows Hz.
4. Connect the test leads across the source
or load to be measured.
5. Read the reading.
Note:
The voltage of the input signal should be
between 1V rms and 20V rms. If the voltage
exceeds 20V rms, the accuracy of reading
may be out of the specified accuracy range.
Measuring Duty Cycle
1. Connect the black test lead to the COM
jack, and the red test lead to the
jack.
2. Set the range switch to Hz Duty position.
3. For EM130USB, press the FUNC button
until the display shows „%„. For EM130,
press the „ Hz/% „ button until the display
shows „%„.
4. Connect the test leads across the signal
source be measured.
5. Read the reading.
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Note:
1. The voltage of input signal must be bet-
ween 3Vp-p and 10Vp-p, and the frequency
of the input signal must be less than 10kHz. If
the voltage exceeds 10Vp-p or the frequency
exceeds 10kHz , the accuracy of the reading
may be out of the specified accuracy range.
Measuring Temperature
Note:
To avoid possible damage to the meter or
other equipment, remember that while the
meter is rated for -20°C to +1000°C and -4°F
to 1832°F , the K Type Thermocouple provided
with the meter is rated to 250°C. For tempe-
ratures out of that range, use a higher rated
thermocouple.
The K Type Thermocouple provided with the
meter is a present, it is not professional and
can only be used for non-critical measure-
ments. For accurate measurements, use a
professional thermocouple.
1. Connect the negative „ – „ plug of the K
type thermocouple to the COM jack, and the
positive „ + „ plug to the µAmA°C°F jack.
2. Set the range switch to „ °C „ or „ °F „ po-
sition.
3. Connect the end of the thermocouple to
the object to be measured.
4. Wait until the reading is stable, read the
reading on the display.
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