Velleman DVM990BL Instrukcje Operacyjne Pobierz pdf (Strona 13)

DVM990BL VELLEMAN 12

NOTE:

1. The meter will show the approximate forward voltage drop of the

diode.

2. If the lead connection is reversed, only the figure "1" will be displayed.

4.11. CONTINUITY TEST

4.11.1. Connect the black test lead to the COM socket and the red test lead to

the V/Ω socket.

4.11.2. Set the rotary switch to the

position.

4.11.3. Connect the test leads across two points of the circuit under test.

4.11.4. If there is continuity (i.e. resistance less than about 70Ω), the built-in

buzzer will sound.

NOTE:

If the input is open circuit, the figure "1" will be displayed.

5. MAINTENANCE

WARNING

Before attempting to remove the battery door or open the case, be sure

that the test leads have been disconnected from the circuit under test in

order to avoid electric shock hazard.

5.1. BATTERY REPLACEMENT

5.1.1. If the "

" indicator appears on the LCD display, it indicates that the

battery should be replaced.

5.1.2. Loosen the screw fixing the battery door and remove it.

5.1.3. Replace the dead battery with a new one.

5.1.4. Put back the battery door.

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Velleman DVM990BL Instrukcje Operacyjne Strona 13