Hioki 3284 - Measuring AC;DC Voltage (AC+DC V)

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Chapter 2 Measurement Procedure
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NOTE
NOTE
2.3.3 Measurin
g
AC/DC Volta
g
e
(
AC+DC V
)
･ The AC V mode does not allow measurement of DC
waveforms, full-wave rectification waveforms, half-
wave rectification waveforms, or DC+AC
waveforms (See 1.5: Modes).
･ Every range will display up to 125% of the range,
however, only the range from 10% to 100% can be
displayed with guaranteed accuracy.
･ At any range, gross errors may occur at 1% or
below of the range, whose accuracy is not
guaranteed, as a result of internal corrective
calculations.
1. Press
to display .
2. Slide the slide cover up using the slide knob. Next,
insert the red test lead to V and the black test lead
to COM of the voltage measurement terminal.
3. Switch between the auto range and the manual range
as necessary.
4. If the counter does not show zero even after display
stabilizes, switch to the range you will use (a manual
range), press
HOLD
and then press
0ADJ/RESET
to
perform a zero-cancel correction. (2.5.2: Zero-cancel
correction function)
5. Attach or remove the rigid insulating sleeve as
required by the measurement category.
6. Carefully contact the test leads to a circuit.
･ Be sure to use the test leads with the sleeves
attached when performing measurements in the CAT
III measurement category. In a CAT II environment,
if the tips of the test leads do not reach the
measurement object, remove the rigid insulating
sleeve before measuring.