YOKOGAWA DL 1520 - User Manual

Questions and Answers

T
Thomas AlvaradoAug 20, 2025
Why are the measured values abnormal on my YOKOGAWA Test Equipment?
- K
  Kimberly PinedaAug 20, 2025
  If the measured values of your YOKOGAWA Test Equipment are abnormal, several factors could be at play. First, ensure the instrument warms up for at least 30 minutes after powering it on. Also, verify that calibration has been performed, the probe has been calibrated, and the probe attenuation is set correctly. Finally, check that the offset voltage is set to '0' and waveform inversion is turned OFF.
J
joseph57Aug 22, 2025
What to do if the keys do not function on YOKOGAWA DL 1520 Test Equipment?
- V
  Victoria TranAug 22, 2025
  If your YOKOGAWA Test Equipment keys aren't working, it might be in remote mode. Press the LOCAL key to switch to local mode. If that doesn't work, try turning the power ON while holding down the INITIALIZE key.
D
Dennis SmithAug 25, 2025
How to fix a YOKOGAWA Test Equipment when the power does not come ON?
- H
  huntjessicaAug 25, 2025
  If the power of your YOKOGAWA Test Equipment does not come ON, it could be due to a few reasons. Ensure that the source voltage is within the rated range. If the voltage is correct, check if the fuse is blown, determine the cause, and replace it.
L
Lance TurnerAug 26, 2025
What to do if no data is output to the external printer from YOKOGAWA Test Equipment?
- R
  rebekahpetersonAug 26, 2025
  If no data is output to the external printer from your YOKOGAWA Test Equipment, ensure that the printer type and format match the equipment's requirements. Also, verify that the printer is set to the on-line mode, the printer cable is properly connected, and the chart paper is correctly set in the printer.
K
Kevin McleanAug 27, 2025
What to do if no trigger is caused on YOKOGAWA DL 1520?
- R
  Ricardo KingAug 28, 2025
  If no trigger is caused on your YOKOGAWA Test Equipment, the trigger settings might be incorrect. Adjust the trigger settings to match the input signal.
M
Mr. Scott DavisAug 29, 2025
Why data cannot be saved on a floppy disk using YOKOGAWA DL 1520 Test Equipment?
- T
  tara46Aug 29, 2025
  If data cannot be saved on a floppy disk using your YOKOGAWA Test Equipment, make sure the floppy disk has been formatted, especially if it's a new disk. Also, ensure the floppy disk is properly inserted until the eject button pops up.
K
Katherine Leonard DDSAug 31, 2025
What to do if no data is output to the plotter from YOKOGAWA Test Equipment?
- R
  Ricardo RobinsonAug 31, 2025
  If no data is output to the plotter from your YOKOGAWA Test Equipment, ensure that the plotter is set to listen-only mode. Also, check that the communication interface cable is properly connected and that the RS-232-C setting parameters match the equipment's settings.
C
Cheyenne FrankSep 2, 2025
Why data cannot be loaded on a floppy disk using YOKOGAWA DL 1520?
- J
  jamesgreenSep 2, 2025
  If data cannot be loaded from a floppy disk on your YOKOGAWA Test Equipment, ensure the floppy disk is properly inserted until the eject button pops up.
C
Christopher HermanSep 4, 2025
What to do if the SCSI device is not recognized by YOKOGAWA DL 1520 Test Equipment?
- K
  Karen WestSep 4, 2025
  If the SCSI device is not recognized by your YOKOGAWA Test Equipment, ensure the ID No. is set to '5.' Also, verify that the power switches are turned ON in the correct order: first the SCSI device, then the DL1520L. Finally, check for any mismatch in the media format and format the media with the DL1520L if necessary.
T
taylormichaelSep 6, 2025
What to do if data can not be saved to the SCSI device using YOKOGAWA DL 1520?
- L
  Lance RodriguezSep 6, 2025
  If you cannot save data to the SCSI device using your YOKOGAWA Test Equipment, ensure the media is formatted with the DL1520L. Also, check the direction of the media and insert it properly.

Summary

Checking the Contents of the Package

Standard Accessories

Safety Precautions

WARNING Power Supply

Critical warning regarding power supply voltage matching and safe connection.

Power Cord and Plug

Precautions for using the supplied power cord and plug to prevent electric shock or fire.

Protective Grounding

Instructions on connecting protective grounding to prevent electric shock.

Necessity of Protective Grounding

Chapter 3 Before Starting Observation and Measurement of Waveforms

3.1 Precautions During Use

Provides crucial safety and handling precautions for instrument operation.

3.2 Installing the Main Unit

Instructions on proper installation positioning and environmental conditions for the instrument.

3.3 Connecting the SCSI cable (for DL1520 L with suffix code -C4)

Chapter 4 Common Operations

4.1 Starting and Stopping Acquisition

Explains how to start and stop waveform acquisition using the START/STOP key.

4.2 Displaying Waveforms using the Auto Set-up Function

Guide on using the Auto Set-up function to automatically configure display parameters.

4.3 Initializing Settings

Guide on resetting the instrument to factory default settings.

Chapter 5 Setting the Vertical and Horizontal Axes

5.1 Turning Display of Input Signal Waveforms ON;OFF

5.2 Setting the Input Coupling

Instructions on setting the input coupling type (AC, DC, GND) for each channel.

5.3 Setting the Probe Attenuation

Guide on selecting the correct probe attenuation ratio for accurate measurements.

Chapter 6 Activating a Trigger

6.2 Setting the Edge Trigger

Detailed instructions on configuring edge trigger settings.

6.3 Setting the Window Trigger

Guide on setting up a window trigger based on voltage range.

Chapter 7 Changing Acquisition and Display Conditions

7.1 Selecting Acquisition Mode, Sampling Mode, and Record Length for DL1520 L;DL1540 L

Guide on selecting acquisition mode, sampling mode, and record length.

7.2 Setting the Input Filter

7.3 Zooming the Waveform

Guide on expanding waveforms to view details using zoom settings.

Chapter 8 Analyzing Waveforms

8.1 Measuring a V-T Waveform using Cursors

Guide on using vertical and horizontal cursors to measure time, frequency, voltage, and difference.

8.2 Measuring an X-Y Waveform using Cursors

Guide on measuring X-Y waveforms using cursors.

8.3 Measuring Waveform Parameters Automatically

Guide on performing automatic measurements of waveform parameters.

Chapter 9 Performing a GO;NO-GO Action

9.1 Judging using a Waveform Zone

Guide on setting up and using waveform zones for GO/NO-GO determination.

9.2 Judging using Measured Values of Waveform Parameters

Guide on performing GO/NO-GO determination based on measured waveform parameters.

9.3 Using the GO;NO-GO Signal Output Function (for DL1540;DL1540 L)

Explanation of the GO/NO-GO signal output function and its circuit diagram.

Chapter 11 Storing and Recalling Data from the Internal Memory

11.1 Storing and Recalling Displayed Waveforms

Guide on storing and recalling waveforms to/from internal memory.

11.2 Storing and Recalling Setting Parameters

Guide on storing and recalling instrument settings to/from internal memory.

Chapter 12 Saving and Loading Data from a Floppy Disk

12.2 Formatting a Floppy Disk

12.3 Saving and Loading Waveform Data

Guide on saving and loading waveform data to/from floppy disks.

Chapter 13 Saving and Loading Data from the SCSI Device

13.1 Selecting the SCSI Device

13.2 Formatting the Media

13.3 Saving and Loading Waveform Data

Guide on saving and loading waveform data to/from SCSI devices.

Chapter 15 Troubleshooting, Maintenance and Inspection

15.1 Troubleshooting

Provides a troubleshooting guide for common instrument issues and their corrective actions.

15.2 Error Messages and Corrective Actions

Lists and explains status messages and error/warning messages with corrective actions.

15.3 Self Test

Appendix 2 Relationship between the Time Axis Setting, Sample Rate and Record Length (for DL1520;DL1540)

Appendix 3 Relationship between the Time Axis Setting, Sample Rate and Record Length (for DL1520 L;DL1540 L)

YOKOGAWA DL 1520 Specifications

General

Category	Digital Oscilloscope
Bandwidth	150 MHz
Channels	2
Sampling Rate	200 MS/s
Vertical Resolution	8 bits
Trigger Modes	Auto, Normal, Single
External Trigger Input	Yes
Display	5.7 inch LCD
Input Impedance	1 MΩ
Maximum Input Voltage	400 V (DC + AC peak)
Trigger Sources	CH1, CH2, EXT
Probe Attenuation Factor Setting	1X, 10X, 100X
Cursor Measurements	Voltage, Time
Power Requirements	100-240 VAC, 50/60 Hz
Weight	4.5 kg