DC OR AC VOLTAGE MEASURMENTS
a. Set the range selector switch between 0.25DC (or 3 VAC) and 300/600 range as shown
in Fig. 5. When in doubt, first select the highest available range.
b. Set the function switch to “DC” or “AC” as desired.
c. Turn off power in the circuit to be measured.
d.
For voltages less than 300V
,( Fig. 5) connect the black marked lead into the “ COM (-)”
jack and the red marked lead into the “+” (V Ω %) jack.
Figure 5a. Measuring High AC or DC Volts
Be extremely careful when working with high voltage circuits. Do not touch the Instrument
or test leads while power is on in the circuit being measured. Do not exceed 600 volts.
WARNING
a.
For voltages greater than 300V
, (Fig. 5a) connect the black marked lead into
the “ COM (-)” jack and the red marked lead into the “600V AC/DC” jack.
b. Set the function switch to “DC” or “AC” as desired.
c. Connect the test leads to the circuit to be measured. Observe polarity for DC
measurements (red lead to circuit positive).
d. Apply power. Select a lower range if appropriate.
e. Read volts on either black scale for DC measurements or the orange scale for
AC measurements.
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