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АМM-1130
ACV Measurement
The measurement is shown as in Figure 3-2, with voltage range being of AC 0.23V～1000V and the measurement methods
being as follows:
1. Turn on the power switch and set the rotary switch to the position of
2. Insert the red and black testing lines into VΩHz end and COM end respectively.
3. Press FUNC. key to select ACV measurement mode.
4. Connect the meter to the two ends of the measured voltage with the red and black probes.
5. Read the meter's data from the display screen. When OL displaying on the meter, it indicates the measured voltage
exceeding the meter's range and it is necessary to remove both the red and black probes from the measured circuit
immediately.
6. By pressing the RANGE key it is possible to select range manually. Indicator of range displays range. While displaying OL
during manual range measurement, it is necessary to select a larger range. When OL displaying under the maximum range,
it indicates the voltage exceeding 1000V, so it is necessary to remove both the red and black probes from the measured
circuit immediately.
Notes: in case of probe hanging in the air, the voltage inducted by the testing line may cause unstable readings on the display screen, but
that will not affect the accuracy of measurement.
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V
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