Fluke NORMA 6003, User Manual, Page: 25 / 98

Power Analyzer
Operation
19
Table 8. Range Configuration
Item Description
Vol. Range
Voltage range options:
- Auto: Autorange. The Analyzer automatically selects the voltage
measurement range with the best resolution.
- 10 V
- 100 V
-
1000 V
Vol. Ratio
(V/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.
XW
Warning
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 not consistent with the actual voltage,
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.
Vol. Line Filter
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.