IM 701510-01E
16-4
16.5 Functions
Item
Specifications
Auto set-up
Makes the voltage axis, time axis, and trigger settings automatically.
Initialization
Automatically resets settings to the factory settings.
Snapshot
Retains the waveform displayed when the SNAP SHOT key is pressed.
Clear trace
Clears snapshot and accumulated waveforms.
Calibration
Automatic calibration and manual calibration are available.
Waveform display ON/OFF
Display ON/OFF function is available for each of the channels CH1 to CH4.
Waveform inversion
Inverts waveforms about the ground level.
Vertical position setting
Moves waveforms vertically within
±
4 div of the center of the waveform display frame.
Horizontal position setting
Moves display positions horizontally within
±
5 div of the center of the waveform display frame.
Acquisition mode
Normal, envelope and averaging modes are available.
Sampling mode
For some time-axis settings, the user can switch between real-time sampling and repetitive sampling.
Record length
For DL1520L, 1 KW, 10 KW, 100 KW, 400 KW or 1 MW(selectable).
For DL1540L, 1 KW, 10 KW, 100 KW, 400 KW, 1 MW, or 2 MW(selectable).
For DL1520/DL1540, automatically set according to Time axis/Sample rate/Trigger mode/
Acquisition mode.
Sequential store function
Stores waveforms only a specified number of times (up to 100) in case of real time sampling mode.
(available on DL1520L/DL1540/DL1540L)
History memory
Stores 100 acquisition data in case of real time sampling mode (available on DL1520L/DL1540/
DL1540L).
Waveform expansion
Displayed waveforms can be expanded in the time axis direction.
Display interpolation
Interpolation method can be selected from straight line, sine, pulse and OFF (no interpolation).
Smoothing
Displays waveforms obtained by moving averaging on sets of 5 data points.
Input filter
20 MHz
Accumulation
Time for performing accumulation can be selected from 100 ms to 60 s, and INFINITE.
X-Y waveform display
Two waveforms (CH1-X axis/CH2-Y axis) can be displayed simultaneously.
Graticule/Scale
Allows selection of scale from frame and grid, turns display of the scale ON/OFF, turns the %
marker ON/OFF.
Intensity adjustment
Intensity can be adjusted for each displayed item.
Cursor measurements
Uses the vertical and horizontal cursors to measure the voltage and time at the cursor position, as
well as the difference in voltage and time between the cursor positions.
Automated measurements
All 21 items of one channel, or any selected item at each channel, can be displayed. Displayble
items depend at the number of displayed waveforms. In addition to measurement of displayed data,
measurement of actual data within acquisition memory is also supported (DL1520, DL1520L,
DL1540L, or DL1540 with a software (ROM) version of 1.13 or later).
Waveform computation
Performs subtraction, addition and multiplication between channels CH1 and CH2.
Phase shift
Performs waveform computation with the phase of CH2 shifted.
FFT computation
Displays the power spectrum after having selected the time frame from rectangular or hanning.
GO/NO-GO judgment
The following two types of GO/NO-GO are available.
• Judgment is made using the zone on the screen (simultaneous judgment of four waveforms (for
DL1520/DL1520L, three) is possible).
• Judgment is made using the automatically measured waveform parameters.
Screen hardcopy and additional
Outputs screen hardcopy and additional information (setup and waveform parameters) to the built-
information print-out
in printer (optional) or to an external HP-GL plotter via the GP-IB interface.
Real-time printing
Prints out waveforms, similar to a recorder.
Action-on-trigger
Records data automatically when a trigger is activated. Selectable whether a hardcopy is printed
out on the built-in printer or whether the data will be stored to a floppy disk.
Data Storage/Recall
Stores and recalls waveform data and set-ups from the internal memory and floppy disk.
DL1520L with suffix code -C4 can save/load waveform data and setting parameters from a SCSI
device. DL1540/DL1540L with software (ROM) version 1.20 or later can use a SCSI device through
the SCSI interface unit 700930 (sold separately).
Calibration signal
Approx. 1 kHz / 1 V
