4.2.2 AC Voltage Measurement
1. Set the function switch to the position of V AC, the LED above the jack (V/
Ω
/F/
CAP)
will shine.
2. Insert the black test lead banana plug into the negative (-) jack (COM) and the red test
lead banana plug into the positive (+) jack (V/
Ω
/F/
CAP).
NOTE
: The meter will be in Auto ranging. If you wish to manually set the range, do so
following instructions in the Description (4.1Diagram item7) section of this manual. For
manual ranging, start at the highest range and work down.
3. Touch the test lead tips to the circuit under test.
4. The TRMS value of the voltage will appear on the display.
CAUTION:
If OL shows on the display, disconnect the test lead from circuit immediately to
avoid damaging the meter.
Never apply the voltage over 750 V.
Use
extreme
caution when working with high voltage.
Never connect test lead with circuit when changing the position of function switch.
4.2.3 DC Current Measurement
1. Set the function switch to the position of AC/DC, the LED above the jack (mA/µA TEMP)
will shine.
2. Insert the black test lead banana plug into the negative (-) jack (COM) and the red test
lead banana plug into the positive (+) jack (mA/µA TEMP).
For current measurements from 600mA to 20A, insert the red test lead banana plug into
the jack (20A). Set the function switch to 20A.
NOTE
: The meter will be in Auto-ranging. If you wish to manually set the range, do so
following instructions in the Description (4.1Diagram item7) section of this manual.
For manual ranging, start at the highest range and work down. In the 20A range,
use of the Range-H Pushbutton will not change the range, it only changes the
decimal point.
3. Remove power from the circuit under test. Then open up the circuit at the point where you
wish to measure current.
4. Touch the black test lead tips to the negative side of the circuit. Touch the red test lead
tips to the positive side of the circuit.
5. Apply power to the circuit.
6. The value and polarity of the Current will appear on the display.
CAUTION:
If OL shows on the display, disconnect the test lead from circuit immediately to
avoid damaging the meter.
Never connect test lead with circuit when changing the position of function switch.
Do not make current measurements on the 20A scale for longer than 15 seconds
every 30 minutes. Exceeding 15 seconds may cause damage to the meter and /or
the test leads.
4.2.4 AC Current Measurement
1. Set the function switch to the position of AC/DC A, the LED above the jack (mA/µA TEMP)
will shine.
2. Insert the black test lead banana plug into the negative (-) jack (COM) and the red test
lead banana plug into the positive (+) jack (mA/µA TEMP).
For current measurements from 600mA to 20A, insert the red test lead banana plug into
the jack (20A). Set the function switch to 20A.
NOTE
: The meter will be in Auto ranging. If you wish to manually set the range, do so
following instructions in the Description (4.1Diagram item7) section of this manual.
For manual ranging, start at the highest range and work down. In the 20A range,
use of the Range-H Pushbutton will not change the range it only changes the
decimal point. Remove power from the circuit under test. Then open up the circuit
at the point where you wish to measure current.
3. Touch one of the test lead tips to each side of the open circuit. Apply power to the circuit.
4. Apply power to the circuit.
5. The TRMS value of the Current will appear on the display.
Summary of Contents for HH0308C
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