8
AC Voltage Measurement
Warning:
To avoid personal injury, or damage to the meter from electric shock, please
do not attempt to measure voltages higher than 1000V although readings may be
obtained.
To measure AC voltage, connect the meter as follows:
•
Insert the red test lead into the V terminal and the black test lead into the COM
terminal.
•
Set the rotary switch to
~
.
•
Connect the test leads across with the object being measured. The measured AC
voltage’s true RMS value shows on the display.
•
When a ACV function is selected, you can press the AC+DC button to view the AC
+ DC True RMS value in the primary display.
•
When measurement has been completed, disconnect the connection between the
test leads and the circuit under test.
Note:
In each range, the meter has an input impedance of 10M
Ω
except 600mV range
has 3000M
Ω
. This loading effect can cause measurement errors in high impedance
circuits. If the circuit impedance is less than or equal to 10k
Ω
, the error is negligible
(0.1% or less).
DC Millivoltage Measurement
Warning:
To avoid damage to the meter, please do not attempt to measure voltages
higher than 400mV although readings may be obtained.
To measure DC Millivoltage, connect the meter as follows:
•
Insert the red test lead into the V terminal and the black test lead into the COM
terminal.
•
Set the rotary switch to mV . Press the SELECT button to cycle through
frequency and duty cycle.
•
Connect the test leads across with the object being measured. The measured
RMS value shows on the display.
•
When measurement has been completed, disconnect the connection between the
test leads and the circuit under test.
•
•
Note:
When measuring DC Millivoltage, the Meter acts around a 2.5GΩ
input
impedance in parallel with the circuit.
Содержание 72-8720
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