YATO YT-73082, Руководство по эксплуатации

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10
PL GB
O P E R A T I N G M A N U A L
Measurement of intensity of the current
Depending on the expected value of the measured intensity of the current connect the measurement cables to the socket marked as
„mA” and „COM” or to the socket marked as „10A” and „COM”. Select the adequate measurement range and the kind of the measured
current.
Maximum intensity of the current measured through the „mA” socket may amount to 200 mA. In case of measurements of the current
exceeding 200 mA connect the lead to the socket marked as „10A”. Maximum intensity of the current measured through the socket
marked as „10A” may amount to 10 A and it is not protected with a fuse. Therefore the duration of the measurements of currents
exceeding 2 A must not exceed 15 seconds, and it is required to wait at least 15 minutes before the next measurement. The maximum
power-carrying capacity of the „mA” socket is 200 mA. The maximum current and voltage values of the sockets must not be
exceeded. Connect the measurement cables in series to the tested electric circuit, select the range and kind of the current and read
the result of the measurement. The first stage of the measurements is to select the maximum measurement range. In order to ensure
more precise results of the measurement you may change the measurement range.
Measurements of resistance
Connect the measurement cables to the „V/ Ω ” and „COM” sockets; switch the range selector in the position of the measurement of
resistance. Place the measurements leads at the terminals of the measured element and read the result. In order to ensure more
precise results of the measurement the measurement range may be changed if required. It is strictly prohibited to measure the
resistance of live elements. In case of measurements of values exceeding 1M Ω the measurement may take a couple of seconds
before the result is stable, which is a normal reaction during measurements of high resistances.
Measurement of capacity
Connect the measurement cables to the sockets marked as „V/ Ω ” and „COM”, switch the range selector in the position of the measure-
ment of capacity. Make sure the capacitor was discharged before the measurement. Do not ever measure the capacity of a charged
capacitor, since it might damage the meter and cause an electric shock. In case of measurements of high-capacity condensers
the measurement may last approximately 30 seconds before the result is stable.
Diode test
Connect the measurement cables to the sockets marked as „V Ω ” and „COM”, switch the range selector to the diode symbol. Place the
measurement leads to the diode terminals in the conduction direction and the reverse direction. If the diode is functioning correctly,
then at the diode connected in the forward direction we will read the voltage drop for this diode expressed in mV. In case the diode is
connected in the reverse direction the display will read „1.”. Correctly functioning diodes show a low resistance in the forward direction
and a high resistance in the reverse direction. It is strictly prohibited to test live diodes.
Conduction test
Connect the measurement cables to the sockets marked as „V Ω ” and „COM” and switch the range selector to the buzzer symbol.
In case the meter is used for conduction measurements, the internal buzzer will emit sound each time the measured resistance drops
below 30 Ω . It is strictly prohibited to test the conduction of live circuits.
Transistor test
Switch the range selector to the position marked with the h
FE
symbol (measurement of the gain coefficient of the transistor). Depend-
ing on the type of transistor it must be connected to the socket of the base marked as PNP or NPN, making sure the terminals of the
transistor are placed in accordance with the letter indications: E - emitter, B - base, C - collector. If the transistor is functioning properly
and the connection is correct, the result of the measurement of the gain coefficient is read in the display. It is strictly prohibited to
test live transistors.
MAINTENANCE AND STORAGE
Clean the meter with a soft cloth. Remove heavy soiling with a damp cloth. Do not submerge the meter in water or any other liquid.
Do not use solvents, caustic or abrasive substances to clean the meter. Make sure the contacts of the meter and the measurement
cables are clean. Clean the terminals of the measurement cables with a cloth slightly soaked with isopropyl alcohol. In order to clean
the contacts of the meter, turn the meter off and remove the battery. Turn the meter round and shake it slightly to remove major impuri-
ties from the contacts of the meter. Soak slightly a cotton swab in isopropyl alcohol and clean each contact. Wait until the alcohol has
evaporated and replace the battery. Store the meter in a dry place in the provided case.