Micronta 22-214A - Making Measurements; Continuity Check

Making Measurements
22
test.
the range switch).
5. Connect the probe tips across the circuit or part under
When measuring resistance, it is best to disconnect one
side of the component under test so the remainder of the
circuit will not interfere with the readings.
6. Read the resistance on the green OHMS scale.
Use the proper multiplier to obtain the correct value (R
“times’’ 1, 10, 1000, or 10,000 depending on the position of
Note for Testing Semiconductor Junctions: When
attempting to identify cathode and anode ends or the
type of transistor (PNP or NPN), the actual polarity of the
tester’s voltage is opposite of the lead colors. The red lead is
the negative source. The black lead is positive
Continuity Check
« Making Measurements
1. Plug the black lead into © COM and the red lead into @
V-0-A.
2. Set the range switch to the CONT position on the OHMS
range.
3. Leave the range doubler switch in the V-(0-A position.
4. Connect the test leads to the unit under test.
5. If the resistance is O to 300 ohms (approx.), the built-in
buzzer sounds. The level of the sound reduces as the
resistance increases.
Note: If the buzzer does not sound when you short the test
leads, replace the 9-volt battery.
23