.3.2 Automatic Setting of Time Axis and Voltage Axis
NOTE
(Auto Range Function)
This function automatically selects the time axis range, voltage axis range and
zero position.
Method Screen: DISPLAY
1. Press the and cursor keys simultaneously.
2. Use the function keys to execute or cancel the function.
・Because the auto-range function performs automatic setting for the input
signal present at the time the function is executed, input a signal before
executing the function.
・Taking the lowest numbered channel among the channels for which
waveform display is on, 1 to 2.5 cycles are automatically set to be recorded
as 10 DIV.
・If for the input signal for this channel there is only a small difference
between the maximum value and the minimum value in the range of
highest sensitivity (10 mV/DIV), the setting is made by taking the next
higher channel.
・If the range cannot be determined, for all channles for which the waveform
display is on. a warning message appears, and measurement is abandoned.
・If measurement has started using the auto-range function:
a. Conditions related to the input units:
・Voltage axis range, zero position: value set automatically
・Low-pass filter: OFF
・Input coupling: DC
(8 channels)
b. Trigger conditions:
・AND/OR for internal trigger and external trigger...OR
・Internal trigger............ only ON for the lowest numbered one of the
channels for which waveform display is on. OFF for the other seven
channels. (However, only in the case that the difference between the
maximum and minimum values is significant.)
・Trigger type: Level....・Slope:
(rising)
・Trigger level: value set automatically
・Filter: OFF
(For one channel only)
・Trigger mode: AUTO
・Pre-trigger: 20%
・External trigger: OFF
・Timer trigger: OFF
c. Status conditions:
・Time axis range (time/div): value set automatically
・Magnification/compression ratio along the voltage axis: ×1
・Magnification/compression ratio along the time axis: ×1
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