6
7
4. For current measurements up to 20A AC, set the function switch to the
yellow 10A/HZ/% position and insert the red test lead banana plug into
the 10A jack.
5. Press the MODE button to indicate “AC” on the display.
6. Remove power from the circuit under test, then open up the circuit at the
point where you wish to measure current.
7. Touch the black test probe tip to the neutral side of the circuit.
Touch the red test probe tip to the “hot” side of the circuit.
8. Apply power to the circuit.
9. Read the current in the display.
RESISTANCE MEASUREMENTS
WARNING:
To avoid electric shock, disconnect power to the unit
under test and discharge all capacitors before taking any resistance
measurements. Remove the batteries and unplug the line cords.
1. Set the function switch to the green
Ω
CAP
position.
Insert the black test lead banana plug into the negative
COM
jack.
Insert the red test lead banana plug into the positive
Ω
jack.
2. Press the
MODE
button to indicate “
Ω
” on the display.
3. Touch the test probe tips across the circuit or part under test. It is best to
disconnect one side of the part under test so the rest of the circuit will
not interfere with the resistance reading.
4. Read the resistance in the display.
CONTINUITY CHECK
WARNING:
To avoid electric shock, never measure continuity on circuits
or wires that have voltage on them.
1. Set the function switch to the green
Ω
CAP
position.
2. Insert the black lead banana plug into the negative
COM
jack.
Insert the red test lead banana plug into the positive
Ω
jack.
3. Press the
MODE
button to indicate indicate “ ”and “
Ω
” on the display.
4. Touch the test probe tips to the circuit or wire you wish to check.
5. If the resistance is less than approximately 50
Ω
, the audible signal will
sound.
If the circuit is open, the display will indicate “
OL
”.
DIODE TEST
1. Set the function switch to the green
Ω
CAP
position.
2. Insert the black test lead banana plug into the negative
COM
jack and the
red test lead banana plug into the positive V jack.
3. Press the MODE button to indicate and
V
on the display.
4. Touch the test probes to the diode under test. Forward voltage will
typically indicate 0.400 to 0.700V. Reverse voltage will indicate “
OL
”.
Shorted devices will indicate near 0V and an open device will indicate “
OL
”
in both polarities.
CAPACITANCE MEASUREMENTS
WARNING:
To avoid electric shock, disconnect power to the unit under
test and discharge all capacitors before taking any capacitance
measurements. Remove the batteries and unplug the line cords.
1. Set the function switch to the green
Ω
CAP
position.
2. Insert the black test lead banana plug into the negative
COM
jack.
Insert the red test lead banana plug into the positive V jack.
3. Press the
MODE
button to indicate “
nF
” on the display.
4. Touch the test leads to the capacitor to be tested.
5. The test may take up to 3 minutes or more for large capacitors to charge.
Wait until the readings settle before ending the test.
6. Read the capacitance value in the display.
6. AUTORANGING/MANUAL RANGE SELECTION
When the meter is first turned on, it automatically goes into Autoranging.
This automatically selects the best range for the measurements being made
and is generally the best mode for most measurements. For measurement
situations requiring that a range be manually selected, perform the
following:
1. Press the
RANGE
key. The “
AUTO
” display indicator will turn o
ff
.
2. Press the
RANGE
key to step through the available ranges until you select
the range you want.
3. To exit the Manual Ranging mode and return to Autoranging, press and
hold the
RANGE
key for 2 seconds.
Note:
Manual ranging does not apply for the Capacitance and Frequency
functions.
