UYIGAO MM-UA9999, Руководство пользователя

Страница: 17 / 21

17
Test current:
1
）
Press button power on the meter
2) Connect Red /black test leads to COM and 10A input jack
3) Disconnect the circuit to be tested. Connect the black test pen to one end of the
disconnected circuit (the lower voltage) and connect the red test lead to the other end of
the circuit that is broken (its voltage is high).
4) Read by the LCD monitor the measured current value. When measuring DC current , The
display will also show the polarity of the current connected by the red pen
4.9 Frequency /
On/Off Test
Warning
Risk of electric shock.
To avoid damage to the meter or the device under test, all power to the circuit
under test should be cut off and all high voltage capacitors should be fully
discharged before the beep on-off test.
1) Insert the black test lead into the COM jack
， and the red test lead into the Jack and
Press button enter On – off mode.
2) Connect the other end of the red and black test leads to the resistance of the circuit under
test.
3) The LCD display the Frequency value
4) Press the button again then to on-off test mode
4.10 Diode Test
Warning
Risk of electric shock.
To avoid damage to the meter or the device under test, all power to the circuit
under test should be cut off and all high voltage capacitors fully discharged
before measuring the resistance.
Test a diode outside the circuit
1) Insert the black test lead into the COM jack, and the red test lead into the Jack
and Press button enter Diode mode .
2) Connect the other end of the red test lead to the diode anode and the other end of the black
test lead to the diode cathode for testing.
3) The meter shows the approximate forward voltage drop of the diode under test. If the polarity
of the test leads is reversed, the meter will display "OL."