Launch KES-200 User manual

LAUNCH KES-200 General Information
A-1
General Information
Table of Contents
General Information································· A-1
Introduction of Main Unit··························· A-2
Outline of KES-200······························ A-2
Keypad ············································· A-2
Specifications········································· A-2
Main Unit··········································· A-2
Oscilloscope······································· A-2
Multimeter·········································· A-3
Ignition Waveform································ A-3
Starting System Analysis······················· A-3
Charging System Analysis····················· A-3
System Setting ··································· A-3
Configuration List···································· A-3
Configuration List ································ A-3
Main Parts Instruction··························· A-3
System Setting ······································· A-5
Update·················································· A-5

LAUNCH KES-200 4Channel Oscilloscope
B-1
GeneralInformation
KES-200 is a tool specially designed for engine test and
analysis with the following functions: 4channel
oscilloscope, multimeter, ignition waveform test,
starting systemanalysis, charging systemanalysis,
cylinderanalysis,PClink,printandInternetupdate,
etc.
4channel oscilloscope function can be used to test
the output waveform of automobile sensors. KES-200
has a built-in dynamic memory for saving 50
waveforms, including rich information of standard
waveform of vehicle sensors and repairs.
You can make a comparison between a waveform
being tested and a standard waveform and analyze
sensor troubles. In addition, the test method and
troubleshooting help information have been given for x
types of commonly used sensors.
The oscilloscope has a complete display control mode
capable of displaying 4 tested waveforms at the same
time.
Multimeter function is used mainly for measuring
voltage, current, resistance, output frequency, duty
cycle, battery voltage, tachometer, and intake manifold
vacuum.
Ignition waveform test function can be used to test
the primary and secondary waveforms of gasoline
engine and display them in single cylinder waveform,
parade waveform, raster waveform or bar graph. It can
be used to test ignition systems with or without
distributor, and obtain ignition peak voltage, spark
voltage and spark duration (with distributor). The
system gives standard and faulty primary and
secondary waveforms to help the user to analyze
automotive engine troubles.
Starting system analysis function is mainly used to
test the starting voltage and current of engine system.
Starting voltage test is to test the storage voltage of the
battery while starting, it can display the initial and end
voltage value at same time; the current waveform and
its maximal and minimal value can be displayed while
perform starting current test.
Charging system test function is mainly used to test
the AC charging voltage of the alternator. It can also
test the charging current and engine speed.
Cylinder analysis function includes power balance
test, cylinder efficiency test, and relative cylinder
compression pressure test. Power balance test is
applicable to distributor engines with less than 6
cylinders. This function is used to analyze the uniformity
of each cylinder. Both auto and manual test modes are
provided. Cylinder efficiency test is to judge the power
performance of each cylinder by testing the primary
ignition interval of two cylinders adjacent with each
other. Relative cylinder compression pressure test is
applicable to engines with less than 6 cylinders. This
function is used to analyze the uniformity of
compression pressure of each cylinder.
PC link function can transmit the stored waveform
from KES-200 to PC for further analysis, processing,
print. This function can also used to perform software
update.
KES-200 is also equipped with printer interface, which
supports common printers with PCL language. The
printed result may be used to perform further analysis
and reserve.
KES-200 is easy to operate, for it provides help
information to guide the user how to operate.
KES-200 can be updated quickly and easily through
the Internet. The user may download the latest version
of the test software and update their KES-200 from the
LAUNCH website: http://www.cnlaunch.com, to obtain
the latest test technique of LAUNCH.

LAUNCH KES-200 4Channel Oscilloscope
B-2
IntroductionofMainUnit
Outlineof KES-200
Fig.1-01
1. External 12V DC switch power
2. Channel 5 (Ground)
3. Channel 4
4. Channel 3
5. Channel 2
6. Channel 1
7. Main cable interface
8. PC & Printer interface
9. LCD display
10. Contrast adjuster
11. Cartridge slot
12. Keypad
Keypad
KES-200 is designed with a 23-key keypad, as shown
in Fig.1-02.
Fig.1-02
The keypad is divided into 3 categories: number keys,
function keys and indicating keys.
1. Number keys [0]-[9]: For selecting a special
item or entering numbers.
2. Function keys:For executing a special function.
[HELP]:For displaying HELP information
[PRINT]:For printing data
[ERASE]: For deleting data or erasing trouble
codes.
[RESET]: For resetting the main unit. [ESC]: For
exiting the current menu or current function.
[ENTER]: When a function is selected, press
[ENTER] key to enter.
[YES]:To conform the selected operation.
[NO]:To cancel the selected operation.
[POWER]: For turning the unit on or off. To turn
the unit off, hold [POWER] down for one second
until a closing dialogue frame appears, and then
release, the main unit will be off automatically.
3. Indicating keys: Including [▲] [▼] [◄] [►]
keys, used for selecting a menu or moving
waveform.
Specifications
MainUnit
Item Specification
Display 320×240 LCD Display
Keypad 23 Conductive Rubber Keys
Buzzer Key Press & Trouble Indicating
Memory Cartridge PCMC2A Interface Cartridge
Operation Temp. -30ºC~+50ºC
Relative Humidity Less Than 90%
Power Supply DC 12V
Serial Port Standard RS232
Printer Common Printer (support PCL
Language), e.g.: HP Laser Jet 6L
Oscilloscope
Item Specification
Number of Channels 4
Voltage DIV 0.1V~20V DIV
Time 25µs~20s

LAUNCH KES-200 4Channel Oscilloscope
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Frequency Width 500kHz
Measuring Voltage DC±150V
Magnification Times for
Waveform
Max. 5 times
Dynamic Waveform Memory 50 pages on-line memory; 8
pages off-line memory
Multimeter
Item Specification
Voltage DC –120~+120V
Current -0.4~0.4A
Resistance 0.0~40.0MΩ
Frequency 1Hz~100kHz
Duty cycle 0~100%
Battery voltage 9~15V
Tachometer 300~8000rpm
Intake manifold vacuum 0~105KPa
IgnitionWaveform
Item Specification
Waveform Primary/Secondary Waveform
Ignition Mode Distributor and Distributorless
Triggering Mode Primary/Secondary Triggering
Starting SystemAnalysis
Item Specification
Starting voltage 8.6~15.0V
Starting current 0~900A
ChargingSystemAnalysis
Item Specification
Charging voltage 8.6~15.0V
Charging current 0~40A
SystemSetting
Item Specification
Language English
Buzzer On/Off
Hardware Test Memory, Keypad, LCD, etc.
Software Update Internet Update with PC
ConfigurationList
ConfigurationList
No. Name Qty Remarks
1 Main Unit 1 KES-200
2 EA Secondary Signal
Connecting Cable
1
3 Electronic Converting Cable 1 4
4 Electronic Converting Cable 2 4
5 Electronic Converting Cable 3 10
6 Electronic Converting Cable 4 4
7 AC/DC switch power
100-240V/3.0A
1
8 EA multi-functional Slice
Sensor
1
9 Engine Analysis Cartridge 1 For ignition
waveform,
multimeter,
oscilloscope, test
10 Cylinder 1 Signal Cable 1
11 Secondary Ignition Signal
Cable
1
12 Battery Cable 1 Connected to the
battery
13 PC Cable 1 Connected to PC
14 Printer Cable 1 Connected to
printer
15 Update Cable 1 For Software
Update
16 Oscilloscope Cable 2 W/Clips
17 Oscilloscope Cable 2 W/Probe
18 Ground Cable 1
19 Main Cable 1
20 Charging current adapter 1 For charging
current test
21 Starting current adapter 1 For starting
current test
22 Charging current riffle adapter 1
23 Cylinder disabling cable 1
24 CD for PC Link 1
25 DIS adapter 1
26 Inductive adapter 1
27 User’s Manual of KES-200
28 After-sales Service
Handbook
1
29 Quality Certificate 1
30 Intake manifold vacuum
sensor
1 Optional
31 Intake manifold vacuum
adapter
1 Optional
MainPartsInstruction
Main cable: Fig.1-03. It’s necessary to applying the

LAUNCH KES-200 4Channel Oscilloscope
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main cable when using KES-200. Connect one end of
the main cable with external power connector to the
main cable port on the KES-200.
Fig.1-03
Battery cable: Fig.1-04. Connect the red clip of battery
cable to the positive pole of battery and black clip to the
negative pole, and connect the other end of the battery
cable onto the power connector of the main cable, so as to
get power from the vehicle battery.
Fig.1-04
Oscilloscope cable: Fig.1-05 It is used for functions of
multimeter, oscilloscope, or primary ignition waveform.
Two types of oscilloscope cables are provided, one is
equipped with probes, and the other with clips.
Fig.1-05
Secondary signal cable: Fig.1-06. It is similar to the
oscilloscope cable but without probes. While using,
connect the red clip to the secondary high-tension cable
of the engine.
Fig.1-06
Cylinder 1 signal cable: Fig.1-07. For testing ignition
waveform, clip the holder of the cable to secondary
high-tension cable of cylinder 1 with the side labeled
with “SPARK PLUG SIDE” facing the engine.
Fig.1-07
Ground cable: Fig.1-08. Used for multimeter,
oscilloscope and ignition waveform test. Clip one end of
the cable to any metal part of the vehicle and the other
end to Channel 5 on the main unit.
Fig.1-08
Printercable:For data printing, connect the 15PIN end
of the print cable to the “PC/Printer” interface on the
right side of the main unit and the other end (25PIN) to
a printer.
Note: Never connect the printer cable until the
main unit is turned on. Otherwise, the main unit
cannotbestarted.

LAUNCH KES-200 4Channel Oscilloscope
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Updatecable: For software updating, connect one end
(15PIN) of the cable to the main cable, and the other
end (9PIN) to RS232 serial port on PC.
PC cable: For PC linking. Connect the end (15PIN) of
the cable to the “PC/Printer Port” on the main unit (to
share the same port with printer) and the other end
(9PIN) to RS232 serial port on PC.
Engine analysis cartridge: Insert the engine analysis
cartridge into the cartridge slot on the main unit properly
with the logo “This Side Upward” upward. Otherwise,
KES-200 does not work.
SystemSetting
When the unit displays the main menu, press [0] key to
enter the system setting menu, as shown in Fig.1-09.
Fig.1-09
Following items can be set up in the system setting
menu.
1. [1. Language]: The system defaults English as its
language.
2. [2. Sound]: Press [2] key to set the buzzer on or
off.
3. [3. Save Configuration]: Press [3] key to save the
current configuration.
4. [4. PC update]: Press [4] key to perform the
Internet update function.
5. [Hardware Test]: Press [5] key to test the
hardware such as EMS memory, keypad, LCD,
printer port, AD channel and ignition channel.
6. [0. Serial No.]: Press [0] key to display the serial
number of the cartridge, which is the only
identification of the main unit for Internet update. It
is well set by manufacturer before delivery.
Note: Remember to press [3] key to save the
configurationafter systemsetup.
Update
The user may download the latest KES-200 test
program and update tool from LAUNCH website:
www.cnlaunch.com and update the program in the
cartridge.
Please see the section of “InternetUpdate” for detailed
information.

LAUNCH KES-200 4Channel Oscilloscope
B-6
4Channel Oscilloscope
Table of Contents
Brief Introduction··················································B-1
Specifications ..................................................B-1
Connection......................................................B-1
Configuration of Oscilloscope Function .......B-1
Getting Started····················································B-1
How to Enter Oscilloscope ............................B-1
Channel Selection ..........................................B-2
Sensor Selection ............................................B-2
Waveform Display..........................................B-3
Display Control................................................B-3
Viewing Help Information of Oscilloscope ················B-7
Help Information On Oscilloscope Key........B-7
Standard Waveforms.....................................B-8
Standard Erase...............................................B-8
Help Information On Sensors .......................B-8
Printout of Oscilloscope ········································B-9
Current Waveform Printing............................B-9
Printing Saved Waveforms............................B-9
Print ..................................................................B-9
PC Link Function of Oscilloscope···························B-9

LAUNCH KES-200 Multimeter
C-1
BriefIntroduction
KES-200 has 4channel oscilloscope function. It can
be used to measure the output waveform of the
sensors on vehicle and display 4 waveforms at the
same time. The help information in the system
includes standard waveforms that are the reliable
basis for analyzing the fault of various vehicle sensors
by comparing them with the waveforms being tested.
Specifications
Item Specification
Signal type DC/AC
Measuring range DC-150V~+150V
Measured frequency 500kHz (Max)
Time DIV 25µs~20s
Voltage DIV 0.1V~20V
Automatic setting
The DIV for time and
voltage is automatically
adjusted according to the
inputted signal.
Display freezing Display can be frozen
Magnification 5 times (Max)
Waveformstorage 50 pages online storage,
8 pages offline storage
Connection
Four oscilloscope cables and one ground cable are
provided with the unit. Refer to Fig.2-01 for cable
connection of oscilloscope.
1
2
345
6
7
8
Fig.2-01
1. KES-200 main unit
2. Engine analysis cartridge
3. Battery
4. Battery cable
5. Ground cable
6. Oscilloscope cable
7. Sensor to be tested
8. Main cable
Configurationof OscilloscopeFunction
zKES-200 main unit (1PCS)
zEngine analysis cartridge (1PCS)
zMain cable (1PCS)
zBattery cable (1PCS)
zOscilloscope cable (4PCS)
zGround cable (1PCS)
GettingStarted
HowtoEnterOscilloscope
Insert the engine analysis cartridge into the main unit.
Then switch on the main unit. The unit will enter the
start interface. On the start interface, press any key
(except [Reset], [Power] and [Exit]), the screen will
display the main menu as shown in Fig.2-02.

LAUNCH KES-200 Multimeter
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Fig.2-02
Press [1] key to select the auto oscilloscope function.
The unit will display the main menu of oscilloscope
function as shown in Fig.2-03.
Fig.2-03
ChannelSelection
After entering the main menu, select a desired
channel according to the prompts.
The functions on the oscilloscope main menu:
[1.OSCILLOSCOPE]: There is no automatic setting
in this function. User can set the time DIV and voltage
DIV manually according to the tested signals.
[2.SINGLE AUTO SET (CH1)]: The DIV of time and
voltage for Channel 1 is automatically set. The unit
receives and displays the signal waveform from
Channel 1.
[3.DUAL AUTO SET (CH1/CH2)]: The DIV of time
and voltage for Channel 1 / Channel 2 is automatically
set. The unit receives and displays the signal
waveforms from Channel 1/Channel 2
simultaneously.
[4.DUAL AUTO SET (CH3/CH4)]: The DIV of time
and voltage for Channel 3/Channel 4 is automatically
set. The unit receives and displays the signal
waveforms from Channel 3/Channel 4
simultaneously.
[5.FOUR AUTO SET (CH1/2/3/4)]: The DIV of time
and voltage for four channels is automatically set. The
unit receives and displays the signal waveforms from
four Channels simultaneously.
[6.PC COMMUNICATION]: Waveforms received
from four channels can be displayed and processed
on PC by means of this function.
SensorSelection
When one of the items 2 - 5 on the main menu is
selected, it is necessary to select the type of the
sensor since each sensor has particular voltage and
frequency. The menu for sensor selection (18 items in
total) is as shown in Fig.2-04.
The first line of the menu shows the channel No. in
which the sensors need to be selected. The number is
automatically set from 1 to 4 by the system.
Fig.2-04
In order to measure and display the output signal of
the sensor being tested, the unit will adjust the DIV of
time and voltage, the triggering level and triggering
mode according to the selected sensor. For example:

LAUNCH KES-200 Multimeter
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Item
Sensor
Volt
Div
Time
Div
Trigger
Volt
Trigger
Mode
Injector 20V 1ms 5V NORMAL
Air flow
sensor 2V 10ms 2V NORMAL
WaveformDisplay
After automatic setting, the unit will display waveforms
as shown in Fig.2-05.
Fig.2-05
The displayed page can be divided into 3 parts:
Upper part: control menu (It will be described in the
next section);
Centralpart:oscilloscope waveform;
Lowerpart:current setting state (as shown below).
DisplayControl
In the display control function, the display of
oscilloscope waveform can be regulated if necessary.
There are 2 display modes: NORMAL and HOLD.
The mode can be selected via [0.HOLD] menu.
[0.HOLD] is designed for particular analysis of
waveform. The function of the menu is described as
follows:
NORMAL mode: [0.HOLD] has not been selected.
1. [ 0.HOLD] -- HOLD mode
It is to stop the oscilloscope waveform output and
freeze the display. The display control can also be
expanded by this function. More detailed analysis can
be done and other expanded display output can be
controlled (e.g. cursor, trigger, magnification, etc) when
the display is frozen. For detailed information, please
refer to the relevant section.
2. [1.CHAN] --for selecting a signal input channel
Press [1] to select [1.CHANNEL], the unit will display a
dialogue box. User can select or change the channel
No. via the menu. Refer to Fig.2-06. The unit provides
three oscilloscope modes: single channel (CH1-CH4),
dual channel (CH1/2, CH3/4) and four channels
(CH1/2/3/4). The first channel on the initial screen of
oscilloscope is CH1.
Fig.2-06
The menu for channel selection is described as
follows:
CHAN1:Receiving signals only from Channel 1.
CHAN2:Receiving signals only from Channel 2.
CHAN3:Receiving signals only from Channel 3.
CHAN4:Receiving signals only from Channel 4.
DUAL1, 2: Inputting signals of Channel 1 and 2 at the
same time.
DUAL3, 4: Inputting signals of Channel 3 and 4 at the
same time.
4CHAN: Inputting signals of 4 channels at the same
time.
To select a desired channel, the user can press a
X1:1ms CH1: DC5V
Channel
Time Div
Voltage Div

LAUNCH KES-200 Multimeter
C-4
corresponding number key or [▲] [▼] keys to
highlight the desired item, and then press [ENTER]
key.
3. [2. VOLT] --for voltage DIV adjustment
After pressing [2] key in the single channel mode, user
can regulate the voltage DIV by means of [▲] [▼]
keys.
In dual channel or 4channel mode, press [◄] [►]
keys or press [2] key followed by [ENTER] key to
select the input channel in which the voltage DIV is to
be changed. When the cursor is moving to left or right
on the lower part of the screen, the voltage DIV can
be adjusted by pressing [▲] [▼] keys.
By pressing [▲] [▼] keys, the voltage DIV can be
increased or decreased in the order of 0.1, 0.2, 0.5,
1.0, 2.0, 5.0, 10.0, 20.0V (depending on the sensor
type being tested). The number stands for the voltage
of each grid.
4. [3.TIME] --for time DIV adjustment
Press [3] key, and then press [◄] [►] keys to change
the time DIV in the order of 25µs, 50µs, 0.1ms, 0.2ms,
0.5ms, 1ms, 2ms, 5ms, 10ms, 20ms, 50ms, 0.1s,
0.2s, 0.5s, 1s, 2s, 5s, 10s, 20s. When the DIV is over
0.1s, the waveform will be displayed in ROLL mode.
There is no difference in time DIV between the dual
channel mode and 4channel mode.
5. [4.GND] --for changing the grounding point
Press [4] key, and then choose the grounding point by
pressing [▲] [▼] keys. The channel number must be
entered on either the dual channel mode or 4channel
mode. Press [4] key, and then choose the desired
channel in which the grounding point is to be moved
by using [◄] [►] and [ENTER] keys. On the right of
the screen, the grounding sign for each channel is
shown as a triangle labeled with the channel number
in.
6. [5.ACDC] --for AC/DC voltage switching
KES-200 initially displays voltage as DC. It can be
switched to read AC voltages by pressing [5] key..
7. [6.TRIG] --for trigger setting
Press [6] key, the screen displays a dialogue box
about the trigger setting as shown in Fig.2-07. The
dialogue box gives the user a few orders to enter the
desired mode.
Fig.2-07
Description of the function on trigger control menu:
(1) [1. SOURCE] --for changing trigger source on the
dual channel or 4channel mode
When [1] is pressed, switching takes place between
channel 1 and channel 2 on the dual mode of
[CH1/CH2]; or between channel 3 and channel 4 on
the dual mode of [CH3/CH4]. On 4channel mode,
switching takes place among channel 1, 2, 3, and 4 in
the numerical order.
(2) [2. MODE] --for changing trigger mode
Each time [2] key is pressed; the trigger mode will
change in order of AUTO - NORMAL - SINGLE -
AUTO.
AUTO trigger: Waveforms can be displayed
continuously without any triggering.
NORMAL trigger: Waveforms cannot be displayed if
no triggering.
SINGLEtrigger: Waveform display will be stopped by

LAUNCH KES-200 Multimeter
C-5
any triggering and then become frozen mode.
(3) [3. SLOPE] --for rise/drop slope trigger switching
It determines the trigger slope of trigger voltage. User
can choose the rise slope or the drop slope as the
trigger slope.
(4) [▲▼V LEVEL] --for triggering voltage level
Use [▲] [▼] keys to adjust the voltage level. On the
right side screen, there is a small triangle sign to
indicate the trigger voltage and trigger slope.
(5) [◄►POSIT] --for trigger position adjustment
Press [◄] [►] keys to adjust the trigger position. On
the top screen, there is an arrow sign (▲or ▼) to
indicate the trigger position and trigger slope. When
the time DIV value is over 0.1 second, there will be no
trigger level sign or trigger position sign.
The triggering control function is the most useful
means for oscilloscope, which is often used to catch
the waveform or adjust the displaying position of the
waveform.
8. [CURRENT PAGE] --for saving page number
KES-200 will automatically save the tested
oscilloscope waveforms in the memory. Each screen
is saved on one page. Up to 50 pages can be saved.
The unit will automatically clear the saved data when
exit. The waveforms are saved in the way of scrolling,
that is, when the number of the saved pages is over
50, the over part will replace the former one in
numerical order in the same memory cell.
To store a page of waveform permanently, the user
should enter the HOLD mode to save it. Only in this
way can the waveforms be transferred to PC for
further processing when communicating with it.
9. When [ESC] key is pressed, the sub-menu
frame will be cancelled if there is, or the unit will
return to the upper level menu.
HOLD mode: [ 0.HOLD] is selected
On the normal mode, when the [0.HOLD] key is
pressed, the unit will enter the HOLD mode. At this
time, a menu for the expanded functions of HOLD will
appear on the top screen, as shown in Fig.2-06.
Menu for expanded functions is explained as follows:
[ 0.GRID] --for visible/ invisible grid
Press [0] key to select one of the two different display
forms with or without grid.
[1. AUTO] --for automatic setting
Press [1] key to perform the auto setting function. The
unit will set the voltage DIV automatically according to
the input signal range. At this time, the unit displays a
message “It is setting…” and then return to the
oscilloscope waveform display mode.
For the waveforms with high voltage such as primary
ignition signal, the oscilloscope waveform display may
not be replayed after the automatic setting. In this
case, please press [ESC] key to exit automatic setting.
[2.CURS] --for cursor controlling
Press [2] key, the unit will display a dialogue box as
shown in Fig.2-08.
Fig.2-08
There are 4 functions to choose:
(1) [1. CURS OFF] --hide the cursor from the screen
(2) [2. MOVE CURS A] --moving the cursor with a full

LAUNCH KES-200 Multimeter
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line
(3) [3. MOVE CURS B] --moving the cursor with a
dotted line
(4) [4. MOVE A& B] --moving the cursor with a full or
dotted line.
When item 2, 3 or 4 is selected, the cursor will be
displayed as shown in Fig.2-09.
Fig.2-09
In which：
dV: Voltage difference between horizontal full line
cursor and dotted line cursor
dT: Time difference between vertical full line cursor
and dotted cursor
×1: Time DIV per grid
The cursor can move by arrow keys. Press [▲] [▼]
keys to move the horizontal line up and down, press
[◄] [►] keys to move the vertical line left and right.
One press will move the cursor by one grid. Hold the
key to fast move the cursor as the user needs.
On dual channel or 4channel mode, press [ENTER]
key to move the cursor to the selected input channel.
The dT and dV values are calculated according to the
DIV of time and voltage in the selected channel. The
channel number will be displayed on the bottom
screen in the cursor form.
[3.ZOOM×1] --zooming in/out of waveform
The user may zoom in/out the time axes of the
oscilloscope waveform. The situation is the same as
increase/decrease of the time DIV. Press [3] key, the
time axis scale will change in the order of x1, x2, x5.
The DIV value at the lower left corner will also change
in the same order.
[4.GND] –changing the grounding point
The operation of moving grounding point is the same
as Item 5 in NORMAL mode.
[5.SAVE], [6.RCLL] --saving waveform or replaying
the saved waveform
When [0.HOLD] is selected, KES-200 will save the
tested waveforms as a page to the random memory
that can save up to 50 pages. The saved waveform
will be cleared automatically in case of power off. To
keep it, the [5.SAVE] function must be used.
First, use [7.PAGE] function to select the desired page
for saving, and then press [5] key to view the saved
waveform menu, use [▲] [▼] keys to move to the
required waveform or enter the waveform number,
and then press [ENTER] key to save the data into the
unit. The used storage address will be labeled with ‘ * ’
sign.
If the selected waveform has been stored (marked
with ‘ * ’), the new data will replace the previous data.
The menu of the stored waveform is shown as in
Fig.2-10.
Fig.2-10
The saved waveform data can be viewed with
[6.RCLL] function. Press [6] key, a list of the storage

LAUNCH KES-200 Multimeter
C-7
data address will appear. The user may choose any
one among them. The address marked with ‘ * ’
means that there is data stored in it and the data can
be replayed.
To clear the saved waveform, move the cursor to the
selected address and then press [ERASE] key to
delete the corresponding data. The mark ‘ * ’ in front of
the address will also be cleared.
[7.PAGE] --picking up a saved waveform by page
number
Press [7] key, and then use [▲] [▼] keys to select
the desired page number which the user want to see.
Once the page number is selected, the corresponding
waveform will be displayed on the screen.
ViewingHelpInformationof
Oscilloscope
When the waveform is displayed, press [HELP] to see
the HELP menu as shown in Fig.2-11. Use [▲] [▼]
keys to select the help information.
Fig.2-11
HelpInformationOnOscilloscopeKey
Select [1.SCOPE KEY HELP] to call up the help
menu. The user may select the numbered items for
description on the key functions by [▲] [▼] keys as
shown in Fig.2-12.
Fig.2-12
The function description includes 14 items for
NORMAL and HOLD mode:
Normal mode: 1.CHAN, 2.VOLT, 3.TIME, 4.GND,
5.ACDC, 6.TRIG, 0. HOLD
Hold mode: 0.GRID, 1. AUTO, 2.CURSOR, 3.ZOOM
OUT, 4.GND, 5.SAVE, 6.RCLL, 7.PAGE
To read the description for any item, use [▲] [▼]
keys to move the cursor to the desired one, and then
press [ENTER] key. It will display the description on
this function. For example, select [1.CHAN], the
description on this function will be displayed as shown
in Fig.2-13.
Fig.2-13
Use [◄] [►] keys to directly view the description on
other function or press [ESC] key to return to the
upper level menu.

LAUNCH KES-200 Multimeter
C-8
Standard Waveforms
This function is for conveniently analyzing various
automotive sensors. It provides the user with multiple
choice of voltage / time DIV and the characteristics of
standard output waveforms for various sensors and
actuators.
When [2.STANDARD WAVEFORM] is selected on
the main help menu, a dialogue box will appear as
shown in Fig.2-14, which lists the name of sensors or
actuators.
Fig.2-14
Select one of the sensors/actuators (totally 16). Its
waveform will appear on the right of the screen. For
example, if [3. O2SENSOR] is selected, its standard
output waveform and proper voltage / time DIV will be
displayed on the right of the screen as shown in
Fig.2-15.
Fig.2-15
Standard Erase
If it is not necessary to see the reference waveform,
user can press [HELP] key to return to the main help
menu and choose [3.STANDARD ERASE] from the
menu to display the output waveform from the
oscilloscope.
HelpInformationOn Sensors
The help information on sensors describes the action,
function, mounting place, working principle, fault
analysis, etc.
Select item [4. Help information on sensors] on the
main help menu, the screen will display the names of
12 common sensors as shown in Fig.2-16.
Fig.2-16
Select one of them and then press [ENTER] key. The
screen will display the related information about this
sensor. For example, if [1. Mass air flow sensor] is
selected, the screen display will be as shown in
Fig.2-17. Press [◄] or [►] key to turn to next page or
read the information about other sensors. Press [ESC]
to return to the upper level menu.
Fig.2-17

LAUNCH KES-200 Multimeter
C-9
PrintoutofOscilloscope
KES-200 can print the viewed oscilloscope waveform
through any common printer that supports PCL
language. The user can print the current waveforms
displayed on the oscilloscope or recalled from the
storage address.
Current WaveformPrinting
To print a sheet of oscilloscope waveform, the unit
must be on the [0.HOLD] mode. KES-200 can record
up to 50 pages of the waveform data automatically.
The user may print the current page by pressing
[PRINT] key, or print other pages in the storage by
selecting [7.CURRENT PAGE], pressing [▲] [▼]
keys to choose the page No., and then pressing
[PRINT] key.
When [PRINT] is pressed, a dialogue box for printing
will appear, as shown in Fig.2-18.
Fig.2-18
Use [◄] [►] keys to change the starting page,
from which the printing is started. Press [▲] [▼] keys
to determine the end page, to which the printer may
stop printing. After setting up, press [ENTER] key to
begin the printing.
Printing SavedWaveforms
KES-200 can print the saved waveforms. The user
may recall the saved waveform by using [6.RCLL]
according to above-mentioned method, and then
press [PRINT] key. But it just prints only one page. For
more pages, the user should use [6.RCLL] function
again.
Print
When [ENTER] key is pressed, the printing function
will begin. At this time, the tips about printing will
appear on the screen. If everything is ready, the
printing will begin. If it fails, a message ”Printer
initializing error, check printer if it is OK?” will appear.
Press [ESC] key to exit the printing operation.
PCLink Function ofOscilloscope
With the PC link function, the user may transmit the
saved waveforms and data to PC through RS232 port
to make further analyzing of the tested waveform.
Here is the operation procedure:
Select [6.PC COMMUNICATION] on the oscilloscope
main menu, and click the icon of oscilloscope on the
screen of PC in which the PC LINK SOFTWARE is
installed, and then enter the oscilloscope test system
by following the tips on the menu.
Refer to the PCLinksection for detailed information.

LAUNCH KES-200 Multimeter
C-10
Multimeter
TableofContents
BriefIntroduction·············································· C-1
Specifications········································· C-1
GettingStarted·················································C-1
How to Enter·········································· C-1
Voltage Measuring·································· C-1
Current Measuring Mode························· C-2
Resistance Measuring Mode···················· C-2
Frequency Measuring Mode ···················· C-3
Duty Cycle Measuring Mode ···················· C-3
Battery Volt Measuring Mode···················· C-4
Tachometer Measuring Mode··················· C-4
Intake Manifold Vacuum (Optional)············ C-5

LAUNCH KES-200 Ignition Waveform
D-1
BriefIntroduction
KES-200 has multimeter function, with which the user
can measure the voltage, frequency and duty cycle of
automotive sensors, as well as battery voltage, RPM,
starting current and charging current.
Specifications
Item Measuringrange
Voltage DC –120~+120V
Current -0.4~0.4A
Resistance 0.0~40.0MΩ
Frequency 1Hz~100kHz
Duty cycle 0~100%
Battery voltage 9~15V
Tachometer 500~8000rpm
GettingStarted
HowtoEnter
Insert the engine analysis cartridge into the main unit.
Then switch on the main unit. The unit will enter the
start interface. On the start interface, press any key
(except [Reset], [Power] and [Exit]), the screen will
display the main menu.
Press [2] key on the main menu to enter the
[MULTIMETER] function. The screen will display the
menu for multimeter as shown in Fig.3-01. The user
may press a corresponding number key directly or
use [▲] [▼] keys to select a desired function, and
then press [ENTER] key to measure.
Fig.3-01
Description of available functions：
[1.VOLT METER]: Entering voltage-measuring mode
of CH1.
[2.CURRENT METER]: Entering the current test
mode of channel 2.
[3.RESISTANCE METER]: Entering the resistance
test mode of channel 1
[4.FREQUENCY METER]: Entering
frequency-measuring mode of CH1/CH2.
[5.DUTY CYCLE]: Entering duty cycle measuring
mode of CH1/CH2.
[6.BATTERY VOLT]: Entering battery voltage
measuring mode.
[7.RPM METER]: Entering RPM and its
stability-measuring mode.
VoltageMeasuring
Please follow Fig.3-02 to connect the cables for
voltage measuring.
The measuring signal for multimeter can be inputted
only through CH1. When testing voltage, current,
resistance, duty cycle, frequency and battery voltage,
the connection is as shown in Fig.3-02.
2
3
1
4
8
5
6
7
Fig.3-02
1. KES-200 main unit
2. Engine analysis cartridge
3. Battery

LAUNCH KES-200 Ignition Waveform
D-2
4. Battery cable
5. Ground cable
6. Object to be tested
7. Oscilloscope cable
8. Main cable
Select [1.VOLT] on the main menu of multimeter, and
the unit will enter the voltage-measuring mode. After
grounding the ground cable and connecting the probe
to the object to be tested，the user can measure the
voltage of CH1 in the measuring range of DC -120V
to +120V.
Display Format:
The display of voltage measuring mode is as shown
in Fig.3-03.
Fig.3-03
The measuring range of voltage is displayed on the
top of the screen: -120V ~ +120V. The voltage
measuring value is displayed on the center of the
screen. User can press [ESC] key to return to the
upper-level menu, or press [HELP] key to view help
information.
CurrentMeasuringMode
Select [2.CURRENT] on the main menu of multimeter,
the unit will enter the current-measuring mode. After
grounding the ground cable and connecting the probe
to the object to be tested，the user can measure the
current of CH2. The measuring range is: –0.4 ~ +0.4A.
Display Format:
The display of current-measuring mode is as shown in
Fig.3-04.
Fig.3-04
The measuring range of current is displayed on the
top of the screen: –0.4 ~ +0.4A..
The current-measuring value is displayed on the
center of the screen. User can press [ESC] key to
return to the upper-level menu, or press [HELP] key to
view help information.
Resistance MeasuringMode
Select [3.RESISTANCE] on the main menu of
multimeter, the unit will enter the resistance-measuring
mode. After grounding the ground cable and
connecting the probe to the object to be tested，the
user can measure the resistance of CH1. The
measuring range is: 0.0~40.0MΩ.
Display Format:
The display of resistance-measuring mode is as
shown in Fig.3-05.
Fig.3-05
The measuring range of resistance is displayed on the
top of the screen: 0.0~40.0MΩ.

LAUNCH KES-200 Ignition Waveform
D-3
The resistance-measuring value is displayed on the
center of the screen. User can press [ESC] key to
return to the upper-level menu, or press [HELP] key to
view help information.
Frequency MeasuringMode
Select [4.FREQUENCY] on the main menu, the unit
will enter the frequency-measuring mode. After
grounding the ground cable and connecting the probe
to the object to be tested, the user may measure the
signal frequency of CH1 and CH2 in the range of 1.0
– 100.0KHZ. The display of the frequency-measuring
mode is as shown in Fig.3-06.
Fig.3-06
The display and operation is the same as that for duty
cycle measuring. For further information, refer to the
section “Duty Cycle Measuring Mode”.
DutyCycleMeasuringMode
Select [5.DUTY CYCLE] on the main menu, the unit
will enter the duty cycle measuring mode. After
grounding the ground cable and connecting the probe
to the object to be tested, the user can measure the
duty cycle of signals in CH1 and CH2 in the
measuring range of 0.0% - 100%.
Duty Cycle:
Duty cycle (or duty ratio) is the percentage of low
voltage time to whole cycle time when the rectangular
wave signals are measured, that is:
Duty cycle = Low voltage time/ (high voltage time +
low voltage time) ×100%
Duty cycle is especially applicable to check the pulse
control signal, such as action of the idle control motor,
not applicable to frequency and voltage control. The
engine is idling when the action of idle control motor is
being tested. When the air conditioner, power steering
system or other power consumption devices are
running, the load of engine will increase. In this case,
the idle control motor increases the time of action to
increase the engine speed and compensate the
consumption.
Fig.3-07 Waveform of idle control motor
The waveform of idle control motor is displayed in
rectangular, as shown in Fig.3-07.
Low voltage shows that the idle control motor is acting.
Duty cycle is the percentage of low voltage in one
cycle.
Display Format:
Duty cycle interface is displayed as shown in Fig.3-08.
Fig.3-08
The number in the center of the screen is the
measured value of duty cycle for the selected channel.
Other values are displayed in the lower part of the
screen, such as:
One cycle
Low V/T
HighV/T LowV
High