YATO YT-73089 Originalanleitung Seite 16

EN
Capacitance measurement
Connect the measuring cables to the sockets marked as VΩHz and COM and set the range
switch to the capacitance measurement position. Make sure that the capacitor has been dis-
charged, before the measurement. Never measure the capacitance of a charged capacitor
as this can damage the meter and cause electric shock. When measuring high-capacitance
capacitors, the measurement may take about 30 seconds before the result becomes stable.
When measuring small capacitances, subtract the capacitance of the meter and the measuring
cables, to obtain a more accurate result.
Diode test
Connect the measuring cables to the jacks marked "INPUT" and "COM" and set the knob to the
diode symbol. Now connect the measuring terminals to the diode leads, according to the direction
of conduction and in the reverse direction. If the diode is working, it will show a voltage drop in its
forward direction expressed in mV. If connected in the reverse direction, the display will show the
overload symbol. Working diodes are characterized by a low resistance in the forward direction
and a high resistance in the reverse direction. It is absolutely forbidden to test diodes through
which electric current is fl owing.
Conductivity test
Connect the measuring cables to the sockets marked as VΩHz and COM. Set the selector to the
buzzer symbol. If the meter is used to measure conduction, the built-in buzzer will sound when-
ever the measured resistance drops below 50 Ω. The buzzer can also emit a sound when the
resistance is in the range from 50 Ω to 100 Ω. It is absolutely forbidden to test conductivity
in circuits through which electric current is fl owing.
Frequency measurement
Connect the measuring cables to the sockets marked as VΩHz and COM. Select the frequency
measurement option with the FUNC button. The display will show the "Hz" symbol. Read the
measurement result on the display.
Measurement of the duty cycle
Connect the measuring cables to the sockets marked as VΩHz and COM. Set the meter's selec-
tor to the "%" position. Use the SEL button to select the fi lling factor measurement and the "%"
symbol will appear on the screen. Read the measurement result on the display.
Rectangular signal generator
The meter can generate a rectangular wave of the selected frequency. Connect the measuring
cables to the sockets marked as VΩHz and COM. Set the selector to the OUT position. Connect
the ends of the cables to the locations where the signal will be generated. By default, a 50 Hz
signal is generated. The frequency can be changed with the "SEL" button. It is absolutely for-
bidden to supply the signal to the locations (elements) which the electric current fl ows
through.
MAINTENANCE AND STORAGE
Wipe the meter with a soft cloth. Larger amounts of dirt should be removed with a slightly damp
cloth. Do not immerse the product in water or any other liquid. Do not use solvents, corrosive or
abrasive agents for cleaning. Care should be taken to keep the contacts of the meter and the
measuring cables clean. Clean the contacts of the measuring cables with a cloth slightly soaked
in isopropyl alcohol. In order to clean the contacts of the meter, turn off the meter and remove the
battery. Turn the meter over and shake it gently so that larger pieces of dirt fall out of the meter
connectors. Lightly soak a cotton stick with isopropyl alcohol and clean each contact. Wait for the
alcohol to evaporate and then install the battery. The meter should be stored in a dry room, inside
the supplied unit packaging.
O R I G I N A L I N S T R U C T I O N S
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