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Item
Vol. Range
Vol. Ratio (V/V)
Vol. Line Filter
Table 7. Range Configuration
Voltage range options:
•
Auto: Autorange. The Analyzer automatically selects the voltage
measurement range with the best resolution.
•
10 V
•
100 V
•
1000 V
Scale of an external voltage sensor (PT). After setting the scale of the
external voltage sensor correctly, the Analyzer automatically calculates the
actual voltage value of the measured signal based on the voltage scale and
the measured value.
The Vol. Ratio represents the voltage ratio of the external sensor.
For example, when connecting the U1500s high-voltage probe with a voltage
ratio of 4mV/V, which represents a voltage ratio of 4:1000, the Vol.
Ratio (V/V) on the Analyzer should be set to 0.004.
If the voltage input terminal is not connected to an external
voltage divider in series, set the scale to 1, otherwise the
measured voltage will not be consistent with the actual
voltage, and there is a danger of electric shock.
If the voltage input terminal is connected with an external
voltage divider in series, the actual voltage will be calculated
according to the set scale.
Voltage signal filter options:
•
OFF: No filter is used.
•
650 Hz: Automatically turn on the line filter, and the cutoff frequency is
650 Hz. Use to observe the synthesis frequency signal of the frequency
conversion system.
•
10 kHz: Automatically turn on the line filter, and the cutoff frequency is
10 kHz. Use for anti-aliasing.
Inserting a voltage measurement circuit has a direct impact on the
measurement of voltage and power. When the line filter is turned on, the
measurements do not contain high frequency components. Noise from the
frequency inverter or distorted waveform can be removed.
Description
Warning
Power Analyzers
Operation
17
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