7
AC VOLTAGE MEASUREMENTS
WARNING: Risk of Electrocution. The probe tips may not be long enough to contact the
live parts inside some 240V outlets for appliances because the contacts are recessed
deep in the outlets. As a result, the reading may show 0 volts when the outlet actually has
voltage on it. Make sure the probe tips are touching the metal contacts inside the outlet
before assuming that no voltage is present.
CAUTION: Do not measure AC voltages if a motor on the circuit is being switched ON or
OFF. Large voltage surges may occur that can damage the Multimeter.
1. Set the function switch to the V AC 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. Touch the test probe tips to the circuit under test.
4. Read the voltage in the display. The display will indicate the proper decimal point,
value and symbol (AC, V, etc.).
DC CURRENT MEASUREMENTS
CAUTION: Do not make current measurements on the 20A scale for longer than 30 Seconds.
Exceeding 30 seconds may cause damage to the Multimeter and/or the test leads.
1. Insert the black test lead banana plug into the negative (COM) jack.
2. For current measurements up to 200mA DC, set the function switch to the mA range
and insert the red test lead banana plug into the (mA) jack.
3. For current measurements up to 20A DC, set the function switch
to the A position and insert the red test lead banana plug into the 20A jack.
4. Remove power from the circuit under test, then open up the circuit at the point where you
wish to measure current.
5. Touch the black test probe tip to the negative side of the circuit. Touch the red test probe tip
to the positive side of the circuit.
6. Apply power to the circuit.
7. Read the current in the display. The display will indicate the proper decimal point, value.
AC CURRENT MEASUREMENTS
WARNING: To avoid electric shock, do not measure AC current on any circuit whose
voltage exceeds 250V AC.
CAUTION: Do not make current measurements on the 20A scale for longer than 30 seconds.
Exceeding 30 seconds may cause damage to the Multimeter and/or the test leads.
1. Insert the black test lead banana plug into the negative (COM) jack.
2. For current measurements up to 200mA AC, set the function switch to the mA range and
insert the red test lead banana plug into the (mA) jack.
3. For current measurements up to 20A AC, set the function switch to the A position and insert
the red test lead banana plug into the 20A jack.
4. Remove power from the circuit under test, then open up the circuit at the point where you
wish to measure current.
5. Touch the black test probe tip to the negative side of the circuit and touch the red test probe
tip to the positive side of the circuit.
6. Apply power to the circuit.
7. Read the current in the display. The display will indicate the proper decimal point, value.
