3-4
IM WT5000-01EN
Voltage Range (Voltage, VOLTAGE RANGE)
The voltage range can be fixed (when auto range is set to off) or determined automatically (when auto range is
set to on).
Fixed Ranges
When the voltage range is fixed, you can select a range from the available options. The selected voltage range
does not change even if the amplitude of the input signal changes. Set the range in reference to the rms value of
the input signal.
760901 (30A High Accuracy Element), 760902 (5A High Accuracy Element)
•
Select from 1.5V, 3V, 6V, 10V, 15V, 30V, 60V, 100V, 150V, 300V, 600V, and 1000V.
• When the Crest Factor Is Set to CF6 or CF6A
Select from 0.75V, 1.5V, 3V, 5V, 7.5V, 15V, 30V, 50V, 75V, 150V, 300V, and 500V.
Auto range
• Set the range in reference to the rms value of the input signal. For example, if you are applying a 100-Vrms
sinusoidal signal, set the range to 100 V.
• When measuring a signal other than a sine wave (such as a distorted wave), you can obtain accurate
measurements by selecting the smallest measurement range that does not produce any of the conditions
below.
• The input peak over-range indicator at the top of the screen illuminates or blinks in red.
• The measured values of the voltage and current are indicated as being overload values (“-OL-”).
• The peak over-range indicator may not illuminate or blink in the following cases.
• If the pulse width is narrow, and the peak value of the waveform cannot be acquired at the sampling rate
of this instrument (approximately 10 MS/s).
• If the high frequency components of the pulse waveform attenuate due to the bandwidth limitations
of this instrument measurement circuit, causing the waveform peak value to be less than the peak
overrange detection level.
• When the secondary output of a VT (voltage transformer) is being applied to the voltage input terminal, set
the voltage range according to the maximum value of the VT output. Then, use the scaling feature to set
the VT ratio.
3 Input Settings (Basic Measurement Conditions)
