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| The performance varies depending on the firmware version. The details are shown as follows:
These values are actual measured values (reference values). |
| When saving measured data or set-up data, there is a limitation on the number of files that can be saved depending on the data format.
Waveform data (*.WVF) : 1000 files/directory
Set-up data (*.SET) : 100 files/directory
ASCII/BINARY(Float)/AG format: 30 files/directory
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| The data are saved in blocks of 8 bits expressed in decimal notation. In other words, if all 8 bits are 0s, it is 0; if all 8 bits are 1s, it is 255. |
| When saving to ASCII format, select the channels to be saved or select All. When channels are selected, only those channels will be saved. When All is selected, all channels are saved. |
| DL708/DL708E: The ON/OFF conditions of bit signals from A1 to A8 and B1 to B8 are expressed as a 16-digit binary value, and then converted to a decimal value. The result is saved. The value is written as a number between 0 and 65535. When all bits are ON B8 B7 B6 B5 B4 B3 B2 B1 A8 A7 A6 A5 A4 A3 A2 A0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 = 65535 (This value is saved.)
DL2700: The ON/OFF conditions of bit signals from A0 to A7 are expressed as an 8-digit binary value, and then converted to a decimal value. The result is saved. This applies to B, C, and D. When all bits are ON A-0 A-1 A-2 A-3 A-4 A-5 A-6 A-7 1 1 1 1 1 1 1 1 = 255 (This value is saved.) Note that the upper bits and lower bits are reversed between DL708/DL708E and DL2700.
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| During the averaging mode, the operation of the SINGLE START key differs from the usual operation as follows:
During exponential averaging: Operates in the same fashion as when the START/STOP key is pressed. The operation does not stop until the START/STOP key is pressed.
During linear averaging: Stops after making measurements for the specified averaging count.
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| Even when the display record length becomes smaller than the record length, measurement is made over the full record length. There is no function that allows you to move the display position to view the other parts of the waveform that is not displayed. When storing the measured data, the entire record length of data is stored. By using the Waveform Viewer for DL series, you can view the entire record length of measured data. The entire record length of measured data can also be output when transferring the data over communications.
Example When the record length is set to 4 MW, the record length is also 4 MW until 2 mS/div. When the T/div setting is set to 1 mS/div, the display record length becomes 2 MW and the rest of the waveform (2 MW) cannot be observed. However, measurements are made for 4 MW of data. When the data are saved, the entire 4 MW of waveform data are stored. When the data are transferred over communications, the entire 4 MW of waveform data are also output.
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| Since the SINGLE START key is active only when the measurement is stopped, press the SINGLE START key in the stopped condition. Pressing the SINGLE START key or the START/STOP key while the measurement is in progress stops the measurement at that point. This applies to all DL Series models that have the SINGLE START key or the START/STOP key. |
| The amount of time by which the combination conditions of the logic input must be met before the detection of the edge trigger of the analog input. For example, the combination of conditions of logic input for the relevant edge must be met at least 15 ns before edge detection. |
| There is no delay, because the external trigger circuit on the DL2700 is located before the A/D converter. On the other hand, the timing is approximately 10 ns faster than the trigger captured on the measured waveform, since there are no attenuators or other circuits. |
| For BINARY data
1 kW:35 ms 10 kW:180 ms 50 kW:779 ms 100 kW:1536 ms
250 kW:3812 ms 500 kW:7527 ms 1 MW:15067 ms 2 MW:30000 ms
For ASCII data
1 kW:3067 ms 10 kW:30500 ms 50 kW:152 s 100 kW:335 s
250 kW:838 s 500 kW:1680 s 1 MW:3356 s
Please consider these values as a reference. This is the time measured from the point at which the data transmission request command is sent by the PC to the point at which the data reception is completed. Data are not displayed on the PC. To create the data for this test, we used a Toshiba Dynabook PC, a National Instruments PCMCIA GP-IB interface, and C programming language.
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The following procedure will allow the hard disk to be read properly.
- On Windows 95, open the "Settings" tab in the properties dialog box for the connected drive, and check the Removable box. Select "My Computer -> Control Panel -> System -> Device Manager -> Disk Drive" to access the properties of the drive.
- Restart the PC.
- After saving data using the DL2700, select "Refresh" on Explorer of the PC.
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DL2700 Digital Oscilloscopes |
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