DIGITAL OSCILLOSCOPES & DIGITAL SCOPES
7008
VIEW RECORDERS
Multi-channel Long Memory Digital Oscilloscope
DL2700
FEATURES
● Max 8 analog inputs or 4 analog inputs
+32 bit digital inputs (optional)
You can simultaneously observe signals from a maximum of 8
channels. Each channel is provided with a 200 MS/s A/D converter.
● Max 16M words
By limiting the number of channels used to half the number of
channels incorporated in the instrument, you can increase the
maximum record length of 8 M words per channel up to 16 M
DL2700 (700882)
426 × 221 × 425mm 17kg
(16-3/4 × 8-3/4 × 16-3/4" 37.5 lbs)
The DL2700 digital oscilloscope, with a maximum record
length of 16 MW, features more than just a long record length. We
designed this instrument to facilitate long record measurement
work. This digital oscilloscope can efficiently capture abnormal
phenomena buried in long data, allowing you to search for and
analyze the causes of these abnormal phenomena. We made the
record length per channel as long as possible to enable you to carry
out efficient troubleshooting. We also designed the instrument to
measure data in at least six channels, enabling you to determine the
cause and effect relationship between each signal. The instrument
also has excellent zoom operability to permit analysis of captured
waveforms.
Select the number of channels and record length suitable for
your application. After the purchase, if you need more channels or
a larger record length, your oscilloscope can be upgraded.
■ DL2700 SELECTION GUIDE
Model
700821
700841
700861
700881
700822
700842
700862
700882
700823
700843
700863
700883
Number of
input channels
2
4
6
8
2
4
6
8
2
4
6
8
★
Safety Standards; EN61010
EMI Standard; EN55011 Group 1 Class A
Immunity Standard; EN50082-2: 1995
Sampling rate Record length
Max
500 MS/s
500 MS/s
500 MS/s
500 MS/s
500 MS/s
500 MS/s
500 MS/s
500 MS/s
500 MS/s
500 MS/s
500 MS/s
500 MS/s
Per channel
200 MS/s
200 MS/s
200 MS/s
200 MS/s
200 MS/s
200 MS/s
200 MS/s
200 MS/s
200 MS/s
200 MS/s
200 MS/s
200 MS/s
1 M words
1 M words
1 M words
1 M words
4 M words
4 M words
4 M words
4 M words
16 M words
16 M words
16 M words
16 M words
words.
● Dual zoom display
The instrument supports a dual zoom display function which simultaneously displays the entire captured waveform together
with two selected parts of the same waveform.
● History memory
The history memory, which holds up to 8000 screens, can assist
you in troubleshooting by letting you recall previous displays.
● Logic inputs (optional)
1 logic probe offers 8 bit logic inputs in exchange for 1 analog
input. The feature provides mixed analog and digital signal observation. In its maximum configuration, the DL2700 offers 4ch
analog and 32 bit digital signal observation.
● Built-in 3.5 inch FDD
● Built-in MO drive (optional)
● Built-in printer (optional)
FUNCTIONS
■ EFFECTIVE UTILIZATION OF THE LONG MEMORY
A long memory is useful not only for capturing single shot signals. The long memory of the DL2700 can meet a variety of
measurement needs.
● High Time Resolution Measurement Using the Long Memory
When you need to capture fast noise and surge signals using a
slow time/div range, a long record length is necessary. For instance, at 10 µs/div several tens of Kwords may be required. The
4 MW record length of the DL2700 supports a sampling rate of
Number of channels that can
be used at the max sampling
rate or max record length
Max
Per channel
500 k words
500 k words
500 k words
500 k words
2 M words
2 M words
2 M words
2 M words
8 M words
8 M words
8 M words
8 M words
Frequency
band
150 MHz
150 MHz
150 MHz
150 MHz
150 MHz
150 MHz
150 MHz
150 MHz
150 MHz
150 MHz
150 MHz
150 MHz
1
2
3
4
1
2
3
4
1
2
3
4
DIGITAL OSCILLOSCOPES & DIGITAL SCOPES
DL2700
500 MS/s even when you are monitoring waveforms of several
milliseconds.
When you are observing transient phenomena or electronically
controlled machine signals, the signals captured by the long
memory are displayed on the screen in the correct orientation.
● Capturing Signals Using a Divided Long Memory
History Memory Holds up to 8000 Past Images
Troubleshooting of a designed circuit starts from capturing of an
abnormal signal. Often, when you wish to capture an abnormal
phenomenon, you do not know the correct trigger conditions
for capturing the signal. You may be lucky enough to display the
abnormal phenomenon on the screen by monitoring the signal
for some time using simple trigger conditions. However, when
you use a normal digital oscilloscope, an abnormal signal that
appears momentarily is updated by the next signal.
The DL2700 history memory holds up to 8000 previous displays
without any need for special settings. An abnormal phenomenon that appeared for only an instant can be recalled later.
Example of a superimposed display of captured past screens
● Sequential Store Function with A Dead Time of 10 µs
Normally, when a waveform is displayed on a digital oscilloscope in realtime, a dead time of several ms occurs. Consequently, you cannot use a normal digital oscilloscope for applications requiring acquisition of all the signals generated at intervals of 1ms or less. The sequential store function of the DL2700
eliminates the process of displaying the acquired signals, thus
enabling the signals to be captured with only a short dead time.
Like the history memory function, the sequential store function
enables signals that satisfy the trigger conditions for up to 8000
measurements to be acquired by the built-in memory.
● Difference between The History Memory Function and The
Sequential Store Function
Both the history memory function and the sequential store function use the memory divided into several blocks rather than as a
single unit. The history memory function uses the divided memory
blocks as a ring memory, and the contents of the oldest memory
block are updated until the stop key is pressed. The sequential
store function does not update the contents of the memory after
acquiring the specified number of waveforms. As indicated in the
figure below, when the sequential store function is used, signals
are not displayed each time they are acquired into memory.
• History memory function:
Effective for capturing abnormal signals whose nature
is not known.
Wave form display with history memory function
Time
→
Memory (n)
Memory (n+1)
• Sequential store function:
Effective for capturing signals generated at a rate of no more
than several ms, without omission.
Wave form display with sequential store-function
Memory block of number of designations
Time
→
■ SIMPLE, VERSATILE ZOOM
A zoom function that magnifies part of the captured signal is an
important feature of a digital oscilloscope that has a long
memory. The DL2700 enables you to make various kinds of
zoom displays by means of simple operations.
● Zoom that Can Simultaneously Display 24 Traces with Intuitive
Operations
The zoom operation of the
DL2700 is the same as the popular zoom operation used in the
DL1540/D1540L and DL4000
series. The ASIC developed by
YOKOGAWA processes the long
memory at high speed, enabling
you to display the desired area
instantaneously.
● Various Zoom Displays
The overall screen of a signal captured by the DL2700 is defined
as Main, and an enlarged screen of part of the waveform is defined as Zoom. You can set two enlarged areas Zoom 1 (Z1) and
Zoom 2 (Z2) with respect to a captured waveform. You can combine the Main screen, the Z1 screen and the Z2 screen into a
single screen. In the Main&Z1&Z2 setting mode which simultaneously displays the Main screen and the two enlarged screens,
Z1 and Z2, a maximum of 24 analog signals can be displayed
simultaneously.
Main display Main & Z1 & Z2 display
● By Using The Zoom Allocation Function, You Can Display An
Enlarged Form of One or More of A Number of Waveforms on
A Screen.
When performing multi-channel measurements, if it is not necessary to enlarge all of the waveforms. You can use the zoom allocation function to display only certain selected waveforms in
the Zoom screen in enlarged form.
When the zoom allocation function is not used When the zoom allocation function is used
DIGITAL OSCILLOSCOPES & DIGITAL SCOPES
DL2700
VIEW RECORDERS
■ YOU CAN SELECT A SIGNAL CAPTURING METHOD AND A
DISPLAY METHOD THAT IS SUITABLE FOR THE PARTICULAR
MEASUREMENT YOU WISH TO PERFORM.
● Envelope
If you perform signal observation for at least several seconds,
you cannot capture signals at the maximum sampling rate, even
if you use a long memory of 16M words. However, by using the
envelope mode of the DL2700, you can always store the peak
value of the signal at a sampling rate of 200 MS/s, regardless of
the Time/div setting.
When envelope is ON When envelope is OFF
● Box Average
The resolution of the A/D converter of the DL2700 is 8 bits. By
using the box average function, you can capture signals at an
equivalent resolution of up to 12 bits depending upon the Time/
div setting. The box average function is also effective for capturing single shot signals.
also be set using voltage values. You can use the measure save
function.
(which arranges the results of the past 512 measurements up to
the point where signal acquisition stopped) to output these results in ASCII format. You can process these results using
spreadsheet calculation software.
Example of automatic measurement of waveform parameter
● Histogram Analysis
• Wave statistical processing
This function specifies the voltage
and the time range. After a signal
has been acquired a number of
times, the frequency of occurrence
of time values and voltage values
are displayed. This is effective for
analyzing jitter, for example.
When box average is ON
(After the signal is captured, zoom takes
place in the voltage axis direction)
● Roll Mode Display
The roll mode displays a low speed signal on the screen in such
a way that it rolls, thus enabling it to be recorded on a pen recorder. This mode can also be used in combination with the envelope to capture surge signals of several tens of MHz, or in
combination with the box average function to capture signals at
high resolution.
Waveform display when the roll mode is used
When box average is OFF
(After the signal is captured, zoom takes
place in the voltage axis direction)
Example of roll mode display
• Statistical processing of the
waveform parameter results
The measurement results for the set
number of acquisitions of the
specified items of the waveform
parameters are displayed in the
form of a histogram.
• Voltage histogram display
By displaying a histogram of
voltage for each acquisition, you
can analyze the waveform from a
different angle.
● Waveform Calculation Software
[User Define is An Option]
The DL2700 supports basic functions which performs addition,
subtraction, multiplication and division phase performs a phase
shift followed by before mentioned computations. Binary converts an analog signal into a bit patterns of ones and zeros,
based on a defined threshold. User define math function (optional) enables you to combine various funtions to perform
waveform calculation.
■
HIGH-SPEED PRIMARY PROCESSING OF CAPTURED SIGNALS
The i960 Intel RISC processor installed in the DL2700 automatically measures the waveform parameters, and also performs
waveform calculations and other data processing, at high speed.
● Automatic Measurement of Waveform Parameters
You can select various items such as amplitude, rise, and interchannel delay, from a total of 24 items, for each channel. The
reference values of the parameters related to the time axis can
Example of a user define of the DL2700
DIGITAL OSCILLOSCOPES & DIGITAL SCOPES
DL2700
The user define math function offers functions such as square
root, exponential, common logarithms, differentiation, and integration, pulse-width, Hilbert transform, and FFT.
These calculations are all performed in the Math 1 and Math 2
areas and you can also use calculation results from Math 1 in
Math 2 functions.
By combining these functions, you can perform calculations
such as demodulation of FM modulated waveforms.
● Linear Scaling Function Converts Voltages into Physical Values.
When recording an output from a sensor, for example, it is desirable to convert it directly into a physical value such as rpm or
m/s rather than leaving it as a voltage.
The linear scaling function of the DL2700 assigns coefficients
and offset values to enable the input voltage to be converted
into a physical value. In addition, a unit can be attached to a
converted result, enabling it to be displayed directly as a physical value.
■ YOU CAN OUTPUT A CAPTURED WAVEFORM IN VARIOUS
FORMS DEPENDING ON THE PARTICULAR APPLICATION.
● Outputting A Signal to The Built-in Printer (option)
There are two ways you can output a signal to the built-in
printer. The short copy format in which the screen data is
printed and the long copy format in which signal data in the acquisition memory is printed out in an expanded form.
Example of short copy
Example of long copy
■ TRIGGERS THAT ARE SUPPORTED BY THE DL2700
● Trigger functions for ease of operation
Select one of two trigger settings, SIMPLE which is related to edge trigger settings, and ENHANCED which is related to other settings,
according to your particular application.
SIMPLE
Settings related to the edge trigger
ENHANCED
Settings not related to the edge trigger
Edge trigger
Gate trigger
A → B (n)
A Delay B
Edge On A
OR
B > Time
B < Time
B Time Out
TV
Window
Logic
A trigger is generated when the selected waveform crosses a set level.
A vertial gate is placed ahead of the trigger point. A trigger occurs when the trigger
conditions are met after the signal meets the gate condition(pass or bypass)
The trigger condition is satisfied when the B trigger occurs n times after the A trigger
condition is met.
The trigger condition is satisfied when the B trigger conditions are met after the A trigger
occures and the set delay time has elapsed.
The trigger occurs at the point in time at which the edge of a selected input channel is
detected while the A pattern trigger condition exists.
The trigger occurs when any one of the individual channnel edge triggers occur.
A trigger is generated on the falling or rising edge of a pulse when the pulse width exceeds
the preset time. The setable range is 90ns to 5s.
A trigger is generated on the falling or rising edge of a pulse when the pulse width is less
than the preset time. The minimum glitch detection is 5ns.
A trigger occurs when the B trigger condition remains true for the set period of time.
A trigger is generated by a video signal such as NTSC, PAL, HDTV, etc.
A trigger occurs when the signal crosses the upper or lower defined levels.
A trigger is defined by combination of the logic inputs.
DIGITAL OSCILLOSCOPES & DIGITAL SCOPES
DL2700
VIEW RECORDERS
● Output to A Personal Computer
Data can be transferred on-line via GP-IB, and also transferred
off-line by using an FD or MO disk (a built-in MO drive is available as an option).
• Saving a hard copy image (image file)
You can insert hard copy images saved in the DL2700 in an
image format, such as TIFF or BMP, directly into text made
with a word processor. This enables you to efficiently create
reports and papers using a word processor. You can save hard
copy images not only in black and white but also in color or a
gray scale.
Example of inserting a hard copy image on the screen of
the DL2700 into application software of a personal computer
• Saving acquired data
You can save a captured waveform to an FD or an MO disk
using a binary or ASCII format. If you save the waveform in a
binary format, you can load it once again, or display it on a
personal computer using viewer software that we provide.
• Measure save function (saves the results of automatically
measuring a waveform parameter.)
You can save the results of up to 512 parameter measurements to an FD or an MO disk using the ASCII format. You
can read and analyze the results of spreadsheet calculations.
SPECIFICATIONS
Vertical section
Number of input channels: 2, 4, 6, 8 (Differs depending upon the model)
Vertical resolution: 8 bits (in normal mode)
Max sampling rate: Normal 500 MS/s (interleave mode)
Frequency band (-3 dB): DC to 150 MHz
Voltage axis sensitivity: 2 mV/div
DC accuracy
Offset voltage accuracy: 2 to 50 mV/div ±(1% of set value + 0.2 mV)
Inter-channel isolation: -40 dB (typical. for the same range)
Max input voltage: 250 V(DC + AC peak) (1 kHz max)
Input impedance: 1 MΩ ±1.5% (approx. 16 pF)
Input coupling: AC/DC/GND
*1
: ±(1.5% of 8 div + offset voltage accuracy)
Horizontal section
Sweep time: 2 ns/div to 50 s/div
Time axis accuracy: ±(0.01% + 500 ps)
Max record length: 1 M words (500 kW/ch model)
External clock input: EXT CLOCK IN input 40 Hz to 100 MHz
Trigger
Mode: AUTO/NORMAL (SINGLE acquisition by the single start
Source: Input channel/EXT
Slope: Rise/fall/both
Coupling: AC/DC
Sensitivity: 1 div p-p (DC to 150 MHz)
Type: Edge/gate/A → B (n) / A Delay B/ Edge On A / OR / B >
External trigger input: Range: ±1 V
Max 12 bit (after average or box average processing)
200 MS/s (all channels simultaneously)
Equivalent time 50 GS/s
*4
to 5 V/div
100 to 500 mV/div ±(1% of set value + 2 mV)
1 to 5 V/div ±(1% of set value +20 mV)
(CAT I&II, 177Vrms)
*2
4 M words (2 MW/ch model)
16 M words (8 MW/ch model)
key)
Time
B < Time / B Time Out/Window (CH1 only)
TV (CH1 only) NTSC/PAL/HDTV
A and B are defined by parallel pattern combination
Trigger level: ±1 V/setting resolution 5 mV
Frequency band: DC to 100 MHz
*5
*3
*6
■ LOGIC PROBE & LOGIC PROBE INPUT UNIT (optional)
Eight-bit logic inputs become observable instead of one analog
signal input. The probe and unit enables multi-channels to be
simultaneously observed when measuring hybrid signals of
mixed analog and digital data. These further support triggers using logic inputs.
Logic probe
Screen update speed
When 1 channel is used: Max 80 displays per screen
When 8 channels are used: Max 27 displays per screen
Storage media
3.5 inch FDD: 640 KB/720 KB/1.2 MB/1.44 MB(MS-DOS)
3.5 inch MO (option): 128 MB/230 MB read and write
Display
LCD: 8.4-inch TFT, color (640 × 480 dots)
Number of display traces: Max. 8 × 3 analog traces (in Zoom mode)
Max. 4 × 3 analog + 32 × 3 digital traces
(with /F3 option and logic probes, in Zoom mode)
Waveform calculations
Types of calculations:
Standard: +, –, ×, phase, binary, power spectrum
With user define math function (/M2 option):
Math description: A formula can be defined in Math1, Math2 area.
Traces described in Math1: C1 to C8 (From channel 1 to channel 8)
Traces described in Math2: C1 to C8 (From channel 1 to channel 8), Math1
Number of characters used in Math1, Math2 : 50 characters
*1: Reference temperature condition (23±2°C, 55±10% RH)
After calibration following warmup for 30 minutes
2
*
: Reference temperature condition (23±2°C, 55±10% RH) After warmup for 30
minutes
3
: Continuous clock signal only
*
4
*
: 2 mV/div can be realized at 5 mV/div zoom.
5
: At a range other than 2 mV/div. The voltage axis at the 2 mV/div range is as
*
follows: ±(3% of 8 div + offset voltage accuracy)
6
*
: 2 div p-p at 2 mV/div (DC to 150 MHz)
DIGITAL OSCILLOSCOPES & DIGITAL SCOPES
DL2700
Supported computation
Calculus: DIF(), DDIF(), INTG(), IINTG()
Pulse width computation: PWHH(), PWHL(), PWLH(), PWLL(), PWXX()
FFT related: Linear spectrum, RMS spectrum Power spectrum, etc.
Others: ABS(absolute value), SQR(squre root), LOG
Record length used for calculations: 250 k words
EXP, ATAN, MEAN(mean value)
^2, ^3 , pH (phase function), BIN (binary function)
HLBT (Hilbert transform), Digital filter
With /M1 option, the record length can be increased to
1M words (up to 10 K words in the case of the FFT)
Expansion function
GO/NO-GO evaluation: Parameter evaluation: Evaluation can be made using a
Waveform parameter automatic measurement: Up to 24 items per trace. Parameters
Image format saving: HP-GL, PostScript, TIFF, and BMP formats
Snapshot: By pressing the snapshot key, waveforms can be ac-
Accumulation: From 2 screens to 128 screens, INFINITE (limitless time)
Roll mode: From 100 ms/div; From 200 ms/div (4 MW use)
Sequential store function: Min. dead time 10 µs
Envelope function: Peak value can be captured at 200 MS/s regardless of
History memory function: Holds up to 8000 screens
combination of 8 parameters.
for 8 traces can be measured simultaneously. Max 8
items + statistical measurement results can be displayed.
cumulated on the screen without limit
Color accumulation
From 500 ms/div (8 MW use) ; From 1 s /div (16 MW use)
Time/div
Interface
GP-IB
Electrical and mechanical specifications: IEEE std. 488-1978
Protocol: IEEE std. 488.2-1987
SCSI
supported SCSI devices
HDD: Drive formattable by EZ-SCSI
MO drive: Up to 640 MB type. formattable by EZ-SCSI
Zip drive: Lomega Zip drive compatible
Logic probe input unit (/F3 option) specifications
Number of logic input / connector 8
Number of usable connectors: Up to half of the analog input can be assigned for logic
Input type: Ground common
Display area: 8 bit digital signal is displayed in the corresponding
inputs.
analog signal display area
Logic probe (700985) specifications
Number of inputs: 8
Maximum input voltage: ± 40 V (DC + AC peak)
Threshold level: Variable
Frequency bandwidth: DC to 80 MHz
Input impedance: 1 MΩ ± 1.5%, 16 pF
Signal input/output
TRIG OUT: TTL level
RGB output: VGA compatible, D-Sub 15 pin
Calibration output: 1 kHz, 1 V p-p, square wave
Built-in printer (option)
Printing method: Thermal write dot method (112 mm width)
Dot density: 6 dots/mm
General specifications
Operation temperature range: 5 to 40°C
Operation humidity range: 20 to 85% RH (when printer is not used)
Power source voltage: 90 to 132 V AC, 198 to 264 V AC
Power source frequency: 48 to 63 Hz
Power consumption: 650 VA max
External dimensions: 426(W) × 221(H) × 425(D) mm (Excluding projection)
Weight: Approx. 17 kg (main unit only)
35 to 85% RH (when printer is used)
(Automatically switched)
● Standard Accessories
Name
Power cable
Probe (700998)
Instruction manual
3.5-inch floppy disk
Quantity
1
Number of channels
1
1
AVAILABLE MODELS
Model
700821
700841
700861
700881
700822
700842
700862
700882
700823
700843
700863
700883
Power voltage
Power cable
Option
*11 roll chart (B9850NX) is included.
2
1 MO disk is included
*
3
*
Logic probe (700985) is optional accessory. Please order the probe separately.
(Number of usable logic probe varies depending on the model.)
Suffix Codes
-1
-5
-D
-F
-Q
-R
DL2700 2 ch, 500 kW/ch model
DL2700 4 ch, 500 kW/ch model
DL2700 6 ch, 500 kW/ch model
DL2700 8 ch, 500 kW/ch model
DL2700 2 ch, 2 MW/ch model
DL2700 4 ch, 2 MW/ch model
DL2700 6 ch, 2 MW/ch model
DL2700 8 ch, 2 MW/ch model
DL2700 2 ch, 8 MW/ch model
DL2700 4 ch, 8 MW/ch model
DL2700 6 ch, 8 MW/ch model
DL2700 8 ch, 8 MW/ch model
100 to 120 V
220 to 240 V
UL, CSA standard
VDE standard
BS standard
SAA standard
Built-in printer *
/B5
/M1
1 MW computation extension
/C3
Internal MO drive *
/M2
User define math function
/F3
Logic probe input unit *
● Accessories (optional)
Name
Ligic probe
50Ω terminator
Code
700985
700976
Specifications
For logic input unit (/F3 option)
Through type
● Spares
Name
Printer paper roll
150 MHz passive probe
Model/part No.
B9850NX
700998
30 m (1 roll per instrument)
10 MΩ (10:1), 1.5 m (1 per instrument)
● Related Products
Name
Isolation input unit
Model/part name
700926
2 channels, 30 MHz, with 2 probes
Description
1
2
3
Order Q’ty
Specifications
Specifications
DIMENSIONS
Unit: mm (approx. inch)
(16.77)
12
(0.47)
426 (16.58)421
12
(0.47)
1
1
Order Q’ty
5
1
Order Q’ty
1
28
(1.10)
(8.7)221
20
(0.79)
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