10
PL
GB
O P E R A T I N G M A N U A L
Diode test
Connect the measurement cables to the sockets marked as „V
Ω
mA” and „COM”; switch the measurement 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
mA” and „COM” and switch the measurement 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
±20
Ω
.
It is strictly prohibited to test the conduction of live circuits.
Transistor test
Switch the measurement range selector to the position marked with the h
FE
symbol (measurement of the gain coefficient of the transis-
tor). Depending 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.
Signal generator
Switch the measurement range selector in the position marked as „*”. Between the
sockets marked as „V
Ω
mA” and „COM” a signal is
generated whose frequency is 50 Hz and the peak to peak voltage is 5 Vp-p. The impedance of the output is 50k
Ω
. It is prohibited to
connect the generator signal to any sources of voltage or current.
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.
