BizLine BIZ 780 312 Mode D'emploi page 8

EN
5-2. AC Voltage (Frequency, Duty Cycle)
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
meter.
1. Set the function switch to the "V-/Hz/%/VFD" position.
2. Indicate "AC" on the display.
3. Insert the black test lead banana plug into the
negative COM jack.
4. Insert red test lead banana plug into the positive
COM jack.
5. Touch the black test probe tip to the neutral side
of the circuit.
6. Touch the red test probe tip to the "hot" side of the
circuit.
7. Read the voltage in the display
8. Press and hold the MODE button key for 2 seconds
to indicate "VFD" on the display.
9. Read the "VFD" value in the display.
10. To exit VFD mode press and hold the MODE
button for 2 seconds.
11. Press the Hz/% button to indicate "Hz".
12. Read the frequency in the display.
13. Press the Hz/% button again to indicate "%".
14. Read the % of duty cycle in the display.
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e_Notice_BIZ780312_EN-FR-NL.indd 8
TRUE RMS Autoranging Digital Multimeter
RANGE
HZ%
REL
MAX/MIN
MODE HOLD
VFD
OFF
VFD
Au to Powe r Of f
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