E) Diode Test; F) Continuity Test - VOLTCRAFT MULTI-DMM MT-52 - V09-10 Operating Instructions Manual

e) Diode Test

Make sure that all the circuit parts, switches and components and other objects of
measurement are disconnected from the voltage and discharged.
- Turn the DMM on and select measuring function
- Plug the red measuring lead into the V measuring socket
(9) and the black measuring lead into the COM measuring
socket (8).
- Press "MODE" button to switch measurement functions. The
symbol for diode test now appears in the display. Pressing this
button again takes you to the next measuring function.
- Check the measuring lines for continuity by connecting
both measuring prods with one another. The value must be
approximately 0 V.
- Now connect the two measuring prods with the object to
be measured (diode).
- The display shows the continuity voltage "UF" in volt (V). If
"OL" appears, the diode is measured in reverse direction
(UR) or the diode is defective (interruption). Perform a
counter-pole measurement to check.
- After measuring, remove the measuring lines from the measured object and turn the DMM off.

f) Continuity test

Make sure that all the circuit parts, switches and components and other objects of
measurement are disconnected from the voltage and discharged.
- Turn the DMM on and select measuring function
- Press "MODE" button twice to switch measurement func-
tions. The symbol for continuity test now appears in the
display. Pressing this button again takes you to the first
measuring function etc.
- Plug the red measuring lead into the V measuring socket
(9) and the black measuring lead into the COM measuring
socket (8).
- A continuity value of less than 50 Ohm is identified as con-
tinuity; in this case a beep sounds. The impedance value is
displayed up to 399.9 Ohm.
- If "OL" (overload) appears on the display, you have excee-
ded the measuring range or the measuring circuit has
been broken.
- After measuring, remove the measuring lines from the
measured object and turn the DMM off.
.
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