目录 DS203 Yijian App User Manual

User Manual: Pdf

Open the PDF directly: View PDF .
Page Count: 13

Download
Open PDF In Browser	View PDF

DS203 USER’S MANUAL (app_yijian)
Contents
I Product Intro………………………………………………………………………………………..…….2
II General Safety Rules ……………………………………………………………………………….. 2
III Major Functions ……………………………………………………………………………………..2
IV Operation Precautions …………………………………………………………………………………..2
V General Inspection …………………………………………………………………………………. 3
VI Functional Inspection................................................................................................................................ 3
VII Firmware Upgrade …………………………………………………………………………………….3
VIII Oscilloscope Familiarization…………………………………………………………………………. 4
1. Interface and Buttons…………………………………………………………………………………4
2. Screen………………………………………………………………………………………………5
2.1.Parameters…………………………………………………………………………………………5
2.2.Functions of Channel Area…………………………………………………………………………6
2.3.Functions of Detection Area…………………………………………………………………….7
2.4.Menus…………………………………………………………………………………………. 8
IX Application Example…………………………………………………………………………………….9
1. Example 1 Measure simple signals…………………………………………………………………9
2. Example 2 Acquire a single signal…………………………………………………………………9
3. Example 3 Measure with Cursors…………………………………………………………………10
4. Example 4 Compare waveforms……………………………………………………………………11
5. Example 5 Save waveform images…………………………………………………………………12
X Operation Tips…………………………………………………………………………………………13

Written by: Zhu Mingzeng

I Product Intro
DS203 is a 5-trace 4-channel digital oscilloscope for common electronic engineering tasks. Its CPU is
based on ARM Cortex M3, adopting FPGA to manage the control & data buffering of ADC. A built-in 2MB USB
disk enables users to store waveforms & upgrade firmware. It also provides 4 application areas, convenient for
users to load & upgrade at most 4 kinds of application firmware.

II General Safety Rules
To ensure your safety & avoid any damage to the device/connected products, please read the following
precautions carefully. To avoid any possible dangers, please use this product according to the rules.
Avoid fire & physical injury.
Use appropriate power cord. Please use dedicated power cord which is certified in the country/region.
Connect & disconnect properly. Do not plug/unplug when the probe(s)/test lead(s) is connected to the
voltage source. Before you plug/unplug current probes, please disconnect power to the circuit-under-test.
Observe all terminal ratings. To avoid fire/electric shock, please observe ratings & symbols on the
product. Please read the user’s manual carefully to know detailed info of the ratings before connecting the device.
Do not operate in humid environment.
Do not operate in inflammable/explosive environment.
Please keep the surface of the product clean & dry.

III Major Functions
Pocket-size oscilloscope DS203 helps you test, adjust & present electronic designs. Its functions include:
▼ 8M Hz bandwidth，8-bit precision
▼ 2 analog channels: (CH_A, CH_B), 2 digital channels (CH_C, CH_D)
▼ Calculation channels: [CH_A]+[CH_B], [CH_A]-[CH_B], [CH_C]|[CH_D],
[CH_C]&[CH_D],REC_A, REC_B, REC_C, REC_D
▼ Sampling rate of any analog channel can reach 72 MS/s
▼ Record length of any channel can reach 4096 bits
▼ Users can save waveforms and upgrade firmware with a built-in 2M USB disk.

IV Operation Precaution
▌Temperature：
Operating Condition：+0°C to +50°C
Non-operating Condition：-20 °C to +60 °C
▌Humidity：
Operating Condition：high temperature：40 °C to 50 °C，0% to 60% RH
Operating Condition：low temperature：0 °C to 40 °C，10 to 90%RH
Non-operating Condition：high temperature：40 °C to 60 °C，5 to 60% RH
Non-operating Condition：low temperature：0 °C to 40 °C，5 to 90% RH
▌Parameters
Max transient-withstanding voltage is ±400 V peak value.
Measure voltage range
Measure frequency range
Max input voltage of logic probe is ±15 V peak value.

2

V General Inspection
When you get a new DS203 oscilloscope, it’s suggested to inspect the product by following steps.
1．Inspect for damage caused by shipping.
If the packaging carton or protection pad is seriously damaged, keep the package until you check the
oscilloscope & accessories electrically and mechanically.
2．Inspect the oscilloscope
Please contact us if following problems occur: (1) surface of device is damaged; (2) device can’t work well;
(3) device doesn’t pass performance test
If damage is resulted from shipping, please keep the container & inform the shipping department/others
responsible for this service.
RIGOL distributor: RIGOL will arrange for repair/change.

VI Functional Inspection
Make a quick functional inspection to ensure this device works well. Please perform following steps:
1． Turn on power supply; access the homepage of the oscilloscope.
2． Connect the oscilloscope with standard signals (e.g.: square wave 20KHz, Vpp=5V); Set the switch on
probe tip as 1X, plug oscilloscope probe to CH_A.
Check whether the measured values are consistent with standard values. It can be calibrated if the margin is
narrow. Same for CH_B, CH_C & CH_D.

VII Firmware Upgrade
To upgrade the firmware, please perform following steps:
1. Open Web to access www.minidso.com, download the latest firmware of your oscilloscope to your PC.
2. Simultaneously press || of DS203 and turn on power supply, enter DFU firmware upgrade mode.
3. Use USB to connect DS203 to your PC, A removable disk named “DFU V3_10_D” will appear on your
PC. Copy the firmware to the root directory of this disk then restart DS203, thus firmware is upgraded.

3

VIII Oscilloscope Familiarization
1. Interfaces & buttons.
 Front view, left→right: RUN/HOLD(||), CALIBRATE (■), PRESET (●), SAVE WAVE(▲)、
NAVIGATOR A(―…＋), NAVIGATOR B(…).
Left view, top→bottom:Wave output[WAVE OUT],analog channel B[CH_B], analog channel A[CH_A].
Right view, top→bottom: Digital channelC [CH_C], digital channelD [CH_D], USB port, power switch.
RUN/HOLD

PRESET

CALIBRATE

SAVE WAVE

NAVIGATOR A

NAVIGATOR B

left view
front view
right view
----------------------------------------------------------------------------------------------------------------------

4

2. Screen
The display is depicted below:

Trigger
point

Channel Area

Display the position
of current waveform
cache
depth

Parameter Area
Measurement Area
Horizontally A—I is channel area; vertically J—T is measurement area. You can move cursor within A—G
by scrolling (…); change selection by scrolling (―…＋); move cursor between upper & lower menus by
pressing (―…＋). When cursor is in G Position, press (―…＋) to move it within G—I; and press (▲) to move
cursor between channel area & measurement area. Each menu has the same color as its corresponding channel:
Channel A ( blue), Channel B( yellow), Channel C( purple), Channel D( green), Common menu is orange.
U—X is parameter area, U position shows parameters for THR, V1 & V2 to choose; V position is the
preferred parameter of (●) button; W position is △ T=T2-T1, X position is △ V=V1-V2
--------------------------------------------------------------------------------------------------------------------2.1、Parameters
As in figure below, adjust G—I,output 1KHz from [WAVE OUT],input square waveform of 50% duty factor
into CH_B,Short press (●) to display current parameter.Annotations of parameters are shown in table below:

5

FPS

Frames Per Second

Vpp

Peak-to-Peak Voltage

Vdc

Direct Current Voltage

RMS

Average Value of Voltage

Max

Maximum Voltage

Min

Minimum Voltage

FRQ

Signal Frequency

CIR

Signal Cycle

DUT

Duty factor

TH

Monocycle High Level Time

TL

Monocycle Low Level Time

Vbt

Battery Voltage

There are 12 parameters; Short press(●) shows only 8 parameters; Press(●)longer and scroll (―…＋)to
select parameter, press (―…＋) to choose color (channel), press (…)or choose EXT to exit; as below:

--------------------------------------------------------------------------------------------------------------------2.2. Functions of Channel Area
The table below shows the detailed introduction of the functions of menus in channel area：
Menu
A
B
C
D

Item
RUN/HOLD
AC/DC/-50mV—10V (stepping in 1-2-5mode）
AC/DC/-50mV—10V（stepping in 1-2-5mode）
DC/---

Function(Operate: Scroll（―…＋）)
(Running Mode）RUN/HOLD, show voltage
(Channel A)AC coupling/DC coupling/hide
voltage per grid
(Channel B)AC coupling/DC coupling/hide
voltage per grid
(Channel C) DC coupling/hide
----

6

E

CH_(D)/(A+B)/(A-B)/(C&D)/(C|D)/
REC_A/ REC_B/ REC_C/ REC_D

thru CH_D: Input(A+B), waveforms of CH_A & CH_B sync
(A-B): get subtraction of waveforms of CH_A & CHA_B
(C&D): get and operation of CH_C & CH_D
(C|D): get or operation of CH_C & CH_D
REC_A: reload the last waveform saved in CH_A
Same for REC_B, REC_C & REC_D

-AUTO/NORM/
0.1uS—1S（stepping
SINGL/NONE/SCAN in 1-2-5 mode）
Squ/Sin/Tri/Saw（≈2.8Vpp）

----(Trigger M)Auto/Norm/Sgl/slow scan/instant scan
Unit per second
(Waveform output)squ/sin/tri/sawtooth

H

(Squ)10Hz—8MHz
(Sin/Tri/Saw) 10Hz—20KHz

﹤1MHz, stepping in 1-2-5mode
﹥1MHz, stepping in 2-4-6-8mode

I

(Squ)50％—90％（±10％）

adjust duty factor

F
G

--------------------------------------------------------------------------------------------------------------------2.3、Functions of Detection Area
The table below shows detailed illustrations of functions of menus in detection area:
Menu

Item

J

Function

Operating Instruction

Trigger mode: falling
edge trigger, rising
edge trigger, (>, <)
trigger, (<, >) negative
pulse
width,(<, >)positive
pulse width

Scroll(―… ＋ ) to choose trigger
mode, press (―… ＋ ) to choose
channel (different colors)

K

THR

Trigger level

Scroll (―… ＋ ) to adjust trigger
level (U position shows trigger
level) ， press (―… ＋ ) to choose
channel (CH_A/CH_B/hide)

L

V1

Cursor V1: top limit
of visible trigger level

Scroll (―…＋) to select top limit of
trigger level, and press (―…＋) to
choose
channel(CH_A/CH_B/
CH_C/CH_D/hide)

M

V2

Cursor V2: bottom
limit of visible trigger
level

Scroll (―… ＋ ) to adjust bottom
limit of trigger level(in X position,
shows △V=V1-V2), press (―…＋)
to choose channel (CH_A/CH_B/
CH_C/CH_D/hide)

N

T1

Time Maker T1

Scroll (―…＋) to adjust time maker
T1, and press (―…＋) to hide time
marker

O

T2

Time Marker T2

Scroll (―…＋) to adjust time maker
T2
(in
W position shows
△T=T1-T2), press (―…＋) to hide
time marker T2.

P

Y

Horizontal Level of

Scroll(―… ＋ )to adjust horizontal

7

each channel

level, press(―… ＋ ) to choose
channel(CH_A/CH_B/CH_C/CH_D)

Q

X

Choose the window to
display waveforms

Scroll(―…＋) to choose waveforms
of different positions to display on
current window

R

T0

？？？？？

？？？？？？？

S

360-4K

Memory depth

Scroll (―…＋) to choose memory
depth

T

EXT/SAV

？？？？？？？

？？？？？？？？

--------------------------------------------------------------------------------------------------------------------2.4、Menus
On screen, press (■) to access the menu, press again to exit. Detailed instructions are listed below:
Item（Up→Down）

Function

Operating Instruction

Save Param

Save current parameter settings

Press (―…＋) to confirm,
scroll (…) to the next menu

Save Dat

Save dat file to the built-in USB
disk

Press (―… ＋ ) to confirm,
scroll (―…＋) to choose file
no., scroll (…) to next menu

Save Buf

Save buf file (sample data in
buffering area) to built-in USB
disk

Press (―… ＋ ) to confirm,
scroll (―…＋) to choose file
no., scroll (…) to next menu

Save Bmp

Save bmp file (waveform
image) to the built-in USB disk.

Press (―… ＋ ) to confirm,
scroll (―…＋) to choose file
no., scroll(…) to next menu.

Save Csv

Save csv file (export sampling
data of buffering area) to
built-in USB disk

Press (―… ＋ ) to confirm,
scroll (―…＋) to choose file
no., scroll(…) to next menu.

Load Dat

Load dat file

Press (―… ＋ ) to confirm,
scroll (―…＋) to choose file
no., scroll (…)to next menu.

Load Buf

Load buf file

Press (―… ＋ ) to confirm,
scroll (―…＋) to choose file
no., scroll (…)to next menu.

BackLight

Adjust backlight brightness

Press (―… ＋ ) to confirm,
scroll (―… ＋ ) to adjust
backlight brightness, scroll
(…) to next menu.

Buzzer

Adjust buzzer volume

Press (―… ＋ ) to confirm,
scroll (―…＋) to adjust buzzer
volume, scroll (…) to next
menu.

Standby

Choose screensaver

Press (―… ＋ ) to confirm,
scroll (―…＋) to choose file
no., scroll (…) to next

8

menu.
Calibrat

Instrument calibration (make
sure CH_A is ground connected)

Press (―…＋) to confirm, press
(■) to calibrate.

IX Application Examples：
1. Example One：Measure simple signals
Observe one unknown signal in a circuit, measure & display the frequency & peak-to-peak value of the signal.
Please operate according to following steps:
Connect the probe of CH_A/CH_B to the detection point of the circuit.
Set CH(A)/CH(B) as AUTO mode, DC coupling, adjust the(horizontal) time calibration and (vertical) voltage
calibration, make sure the signal displays clearly.
Adjust THR value to make the display of signals stable.
Press(●), analyze signal parameters, e.g.:Vpp(peak-to-peak voltage), RMS(average value of
voltage),FRQ(frequency) and so on.
Take the following figure as an example：

2. Example Two: Acquire a single signal
It’s the superiority and feature of digital oscilloscope to easily acquire non-periodic signals like impulsion
and sentus. To acquire a single signal, you need a priori knowledge of it to set trigger level & trigger edge. E.G. if
impulsion is a TTL PWL logic signal, trig level should be set as 2V, trig edge as rising edge trig. If the signal is
not stable, it’s suggested to observe in a normal triggering mode to define trig level & trig edge.
Operation steps are as follows：
Connect the probe of CH_B to detection point of the circuit.
Set the triggering: set J as
(rising edge trig), F as SINGL(single trig), trig setting: DC coupling.
Adjust horizontal time level and vertical scale to proper range.
Adjust K position THR, adjust to proper trig level.
Press (||), wait for proper trig signal to appear. If a signal reaches preset trig level, sample & display it.
9

This function can catch occasional incidents very easily; e.g. a sudden sentus of high amplitude. Set the trig
level a little higher than normal signal level, press (||), and when the sentus occurs, the device will automatically
trig & store the waveforms before & after the trig. It’s depicted as the figure below to better observe the changes
of waveforms before & after the trig.

3. Example Three: Cursor measurements
A cursor can be used to measure the time and voltage of the waveform very quickly.
（1）Measure the cycle of the 3rd waveform from the signal source.
Please operate according to the following steps:
Move cursor to N（T1）
。
Scroll (―…＋), put cursor T1 to the 3rd peak value of the signal.
Move cursor to N position (T2).
Scroll (―…＋), put cursor T2 to the 4th peak value of the signal.
Then you’ll get: △ T=14.0uS, i.e. cycle of the 3rd wave crest.
(2) Measure the peak-to-peak value of the signal source
Please operate according to the following steps:
 Move the cursor to L position (V1)
 Scroll (―…＋), put cursor V1 to wave crest of the signal.
 Move cursor to M position (V2)
 Scroll (―…＋), put cursor V2 to wave trough of the signal.
Then you’ll get: △ V=168mV, i.e. peak-to-peak value of the signal
As shown in the following figure

10

Vpp
Cycle
4. Example Four: Comparison of Waveforms
Module E(REC_A/ REC_B/ REC_C/ REC_D) can be used to compare standard signal & unknown signal.
Please operate according to following steps:
Input standard signal to CH_A, press (■), choose Save Dat 01 to save waveform, as in Figure 4.1:
Input unknown signal to CH_ A, in E position choose REC_A, press (■), choose Load Dat, as Figure 4.2:
Move P position Y to adjust horizontal level, to compare waveforms, as in Figure 4.3:

Figure 4.1

11

Figure 4.2

Figure 4.3
5. Example Five: Save waveform images
Sometimes waveform images need to be archived/analyzed on PC platform.
Please operate according to following steps:
With prerequisite of correct measurement of signal source, press (■), choose Save Bmp 01, scroll (―…＋)
to choose file no., press (―…＋) to confirm. The file (named IMAG001.BMP) will be saved to built-in USB
disk; as in following figure.
To analyze waveform images, you only need to copy the images to your PC.

12

X Operation Tips
1. When measure high frequency signals, to enhance scan speed, it’s suggested to lower buffer depth by
adjusting S position, 360 points as a window, and adjust X in Q position to observe the buffer waveforms in
the memory.
2. After access to the signal, choose AC coupling scale when need to observe noise and ripple waveform.
3. Use cursor V1 & V2 to measure two random points for voltage difference.
4. Use cursor T1 & T2 to measure two random points for time differ

13



---

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.5
Linearized                      : No
Page Count                      : 13
Language                        : zh-CN
Tagged PDF                      : Yes
Title                           : 目录
Author                          : 葉麗
Creator                         : Microsoft Office Word 2007
Create Date                     : 2012:08:16 02:36:30
Modify Date                     : 2012:08:16 02:36:30
Producer                        : Microsoft Office Word 2007

EXIF Metadata provided by EXIF.tools