5-2
IM DL350-01EN
Time Scale (Time/Div)
This is a setting in scope mode.
When the internal clock is being used, the time scale is set as a length of time per grid division (1 div). The
selectable ranges are 1 μs/div
*
to 30 s/div, 1 min/div to 30 min/div, 1 hour/div to 12 hour/div, 1 day/div to 5 day/
div. The transition from seconds to minutes to hours to days occurs automatically. Because the horizontal display
range is 10 div, the amount of time on the waveform that is displayed is equal to the time scale × 10.
1 div = 500 µs
10 div = 5 ms
1 div = 1 ms
10 div = 10 ms
Internal and External Clocks (Time base selection)
Under the initial settings, the instrument samples the waveform data using the clock signal produced by its
internal time-base circuit (internal clock).
You can also use an external clock signal to control sampling. Apply the external clock signal to the external
clock input terminal on the left panel of the instrument. This external clock input is useful for synchronizing to the
clock signal of the waveform that is being measured.
When you control sampling using an external clock, you cannot change the time scale. To change the time-
axis display range, change the record length or zoom in on the time axis.
5 Waveform Acquisition
