LAUNCH KES-200 Charging System Analysis
F-3
Charging System Analysis
Table of Contents
Specifications······················································F-1 How to Start························································F-1
Page 1: ...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...
Page 2: ...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 c...
Page 3: ...etting the main unit ESC For exitingthecurrentmenuorcurrentfunction ENTER When a function is selected press ENTER keytoenter YES Toconformtheselectedoperation NO Tocanceltheselectedoperation POWER For...
Page 4: ...Qty Remarks 1 MainUnit 1 KES 200 2 EA Secondary Signal ConnectingCable 1 3 ElectronicConvertingCable1 4 4 ElectronicConvertingCable2 4 5 ElectronicConvertingCable3 10 6 ElectronicConvertingCable4 4 7...
Page 5: ...05 Secondary signal cable Fig 1 06 It is similar to the oscilloscope cable but without probes While using connecttheredcliptothesecondaryhigh tensioncable oftheengine Fig 1 06 Cylinder 1 signal cable...
Page 6: ...can be set up in the system setting menu 1 1 Language ThesystemdefaultsEnglishasits language 2 2 Sound Press 2 key to set the buzzer on or off 3 3 Save Configuration Press 3 key to save the currentco...
Page 7: ...rted B 1 HowtoEnterOscilloscope B 1 ChannelSelection B 2 SensorSelection B 2 WaveformDisplay B 3 DisplayControl B 3 ViewingHelpInformationofOscilloscope B 7 HelpInformationOnOscilloscopeKey B 7 Standa...
Page 8: ...Displaycanbefrozen Magnification 5times Max Waveformstorage 50 pages online storage 8pagesofflinestorage Connection Four oscilloscope cables and one ground cable are provided with the unit Refer to Fi...
Page 9: ...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 f...
Page 10: ...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 in...
Page 11: ...ssing keys Thechannelnumbermustbe 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 ENTE...
Page 12: ...rmer one in numericalorderinthesamememorycell 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...
Page 13: ...s 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 corne...
Page 14: ...LP tosee the HELP menu as shown in Fig 2 11 Use keystoselectthehelpinformation Fig 2 11 HelpInformationOnOscilloscopeKey Select 1 SCOPE KEY HELP to call up the help menu The user may select the number...
Page 15: ...e screen as shown in Fig 2 15 Fig 2 15 StandardErase 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 m...
Page 16: ...up press ENTER key to begintheprinting PrintingSavedWaveforms 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...
Page 17: ...C 1 Specifications C 1 GettingStarted C 1 HowtoEnter C 1 VoltageMeasuring C 1 CurrentMeasuringMode C 2 ResistanceMeasuringMode C 2 FrequencyMeasuringMode C 3 DutyCycleMeasuringMode C 3 BatteryVoltMea...
Page 18: ...he 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 thenpress ENTER keytomeasure Fig 3 01 Descriptionofavail...
Page 19: ...nu of multimeter the unit will enter the current measuring mode After grounding theground cable and connecting the probe to the object to be tested the user can measure the currentofCH2 Themeasuringra...
Page 20: ...Cycle Duty cycle or duty ratio is the percentage of low voltage time to whole cycle time when the rectangular wavesignalsaremeasured thatis Duty cycle Low voltage time high voltage time lowvoltagetime...
Page 21: ...large number in the center of the screen is the measured value of voltage Below it is the maximum andminimumvaluesofvoltage To retest the maximum and minimum voltage press ENTER key User can press ESC...
Page 22: ...engine Connection ConnecttheblackBNCterminaloftheintakemanifold vacuum adapter to the channel 1 CH1 of KES 200 connect the red BNC terminal to the channel 2 CH2 SeeFig 3 13fordetailedconnection 3 2 4...
Page 23: ...is 1 3 4 2 then the displayed waveforms are corresponding to 1 3 4 and 2 respectively The waveform displayed in Figure 5 is a normal one it is shown that the intake manifold vacuum for each cylinder i...
Page 24: ...toSetup D 1 DescriptionofIgnitionMode D 2 ConnectionsforDifferentTests D 2 PrecautionsonConnection D 5 PrimaryIgnitionWaveform D 6 WaveformDisplay D 6 DisplayControl D 6 Primary Ignition Waveform of5...
Page 25: ...primary secondary ignition waveform thefollowingitemsareneeded z KES 200mainunit 1PCS z Engineanalysiscartridge 1PCS z Maincable 1PCS z Batterycable 1PCS z Oscilloscopecable 1PCS z Cylinder1signalcab...
Page 26: ...coil It is able to test independent ignition primary secondary waveform for each cylinder z D L I 2 cylinders Two spark plugs are connectedtooneignitioncoil oneoftheplugsis connected to positive term...
Page 27: ...Note Fortheignitionmodeof8cylinderscomposedoftwodistributors testeachignitiongroup 4cylinders inturn DLIEFS CONNECTION 3 Connection for primary secondary ignition waveform test of one cylinder igniti...
Page 28: ...as shown in Fig 4 10 When such connection is used to test the secondary ignition waveform select primary trigger mode to get the very stable secondary ignition waveform If the primarynegativeleadofthe...
Page 29: ...ked with SPARK PLUG SIDE facing the spark plug of cylinder 1 The plug next to the alternator is usually cylinder 1 spark plug After cylinder 1 signal cable is connected theunitwillshow a groundmark wi...
Page 30: ...0 PRIMARYIGNITION functionforthesensortype When the engine is running the ignition coil must generate primary voltage and a waveform will be displayed on the screen If no waveform is output the primar...
Page 31: ...GE for selecting the waveform page to bedisplayedonthescreen KES 200 can record up to 50 pages of the waveform data automatically until 0 HOLD is pressed Select 3 PAGE and then press keys to view the...
Page 32: ...ctionmenu KES 200 can automatically save up to 50 pages of waveformsandstopwhenpressing 0 Hold Theuser can press 3 Current Page and then use keystoviewthecurrentwaveform 11 7 SAVE Tosavewaveforms The...
Page 33: ...Input a new firing order by the number keys and then press ENTER key For example if the firing order is 1 5 3 6 2 4 press 1 5 3 6 2 and 4 keys in order andthenpress ENTER key Fig 4 21 User can also pr...
Page 34: ...ignition coils Each coil is connected to 2 spark plugs When one of them discharges positive electricity Cylinder 1 for example it also discharges negative electricity to Cylinder 4 at the same time Wh...
Page 35: ...derofcommonvehiclemodels The content of help information may be different for differentinterface Fig 4 24showsthehelpinformation onwaveformdisplayinginterface Fig 4 24 Press ESC key to exit the help s...
Page 36: ...LAUNCH KES 200 Starting System Analysis E 12 Starting SystemAnalysis Table of Contents Specification E 1 HowtoStart E 1 StartingVoltage E 1 StartingCurrent E 1...
Page 37: ...ing in the drop of battery voltage When the battery voltage drops the allowablevoltage theenginemaynotstart Totestthestartingvoltage justconnectthebatteryclip tothebattery to and to connectthemain cab...
Page 38: ...ycable 4 battery 5 currentwireofstarter 6 largecurrentadapter 7 maincable Fig 5 04 Whiletesting usermay z Press 0 to save the tested waveform or replay thesavedwaveform z Press 1 toadjustthetimedivisi...
Page 39: ...LAUNCH KES 200 Charging System Analysis F 3 Charging SystemAnalysis Table of Contents Specifications F 1 HowtoStart F 1...
Page 40: ...nu of chargingsystemanalysisasshowninFig 6 02 Fig 6 02 Thewaveformatthemiddleofthescreenasshownin Fig 6 02 is the ripple of AC voltage during the dischargingofbattery Ifthechargingvoltageistoolow it w...
Page 41: ...artsRequired G 3 Connection G 3 OperationProcedures G 3 AnalysisofTestedWaveform G 11 CylinderEfficiency G 12 UnitsandPartsRequired G 12 Connection G 12 OperationProcedures G 12 RelativeCompression G...
Page 42: ...der 1 high tension cable 10 Distributor 1 Insert the engine analysis cartridge into the cartridge slot of the KES 200 main unit 2 Power the main unit from the battery or the cigarette lighter 3 Connec...
Page 43: ...1 Power Balance Auto the screen will display the second level function menu as shown in Fig 7 04 Fig 7 04 On the second level function menu you can press ESC key to exit or press HELP key to get the h...
Page 44: ...e number and pressing ENTER key Fig 7 07 Manually input the firing order and press ENTER key The screen will display as shown in Fig 7 08 Fig 7 08 Note Make sure to input the firing order correctly If...
Page 45: ...own in Fig 7 13 KES 200 will disable each cylinder in order according to the firing order and perform cylinder power balance test automatically Fig 7 13 If a cylinder is disabled the corresponding cyl...
Page 46: ...current waveform and press ENTER key the screen will display as shown in Fig 7 16 Fig 7 16 Note The saved address will be marked with At most 8 waveforms can be saved When all of the 8 addresses have...
Page 47: ...On the second level function menu following operations are available z ESC to exit z HELP to view the help information as shown in Fig 7 05 After entering the help interface press or key to select th...
Page 48: ...unction reconnect the cables and try it again Observe the engine speed displayed on the top right screen When the displayed speed is stable press ENTER key to perform power balance test Note Keep the...
Page 49: ...y to view the stored results or z Press PRINT key to print the present test result or z Press ENTER key to perform a new round of power balance test or z Press ESC key to exit the manual power balance...
Page 50: ...d drop related to the disabled cylinder If each cylinder of the tested engine contributes an equal power the bar graph will be uniform which indicates the difference of the percent speed drop of each...
Page 51: ...ition coil 8 Cylinder 1 signal cable 9 Cylinder 1 high tension cable 10 Distributor 1 Insert the Engine analysis cartridge into the cartridge slot of KES 200 main unit 2 Power the main unit from the b...
Page 52: ...P to enter the help interface as shown in Fig 7 29 Press 1 key to enter the cylinder efficiency test Press 2 key to enter the history record interface Fig 7 29 Entering Cylinder Efficiency Test On the...
Page 53: ...in Fig 7 33 Make sure to input the right firing order otherwise the test cannot be performed For example if you input an error firing order as shown in Fig 7 34 the screen will display the error info...
Page 54: ...result previously stored z Press PRINT to print the present tested result z Press ENTER key to continue the test z Press ESC key to exit the test Note The saved items will be marked with At most 8 wav...
Page 55: ...nd press ENTER key the screen will display the selected waveform as shown in Fig 7 40 Fig 7 40 z Press 1 key to continue to view z Press PRINT key to print the displayed waveform z Press ESC key to ex...
Page 56: ...it 2 Power the main unit from the battery or the cigarettelighter 3 Connectoneendofthestartingcurrentadapter tothechannel4ofKES 200 andtheotherend with starting current clip to the starter current wir...
Page 57: ...n on the menu 1 TEST 2 VIEW For exiting the test press Exit key User can also press HELP key to view the help information as showninFig 7 45 Fig 7 45 User can select one item to read by pressing or an...
Page 58: ...he result of the relative compression test for thecylinders asshowninFig 7 51 Fig 7 51 Note During the relative compression test the cranking time will be a little longer Do not interrupt 5or7secondsl...
Page 59: ...5 Fig 7 55 Press 2 key to save data it can be done on either BAR GRAPH or PEAK WAVEFORM display the screenwilldisplayamenu asshowninFig 7 56 Fig 7 56 Press keystoselectrecordeddata andthen press ENTER...
Page 60: ...test reconnect the test cable andperformthetestagain On the request to select the number of cylinders as shown in Fig 7 46 when select number 4 or 3 KES 200willdirectlyactivatetherelativecompression t...
Page 61: ...arkedwith AnalysisofTestedWaveform The bar graph may indicate the test information in a periodoftime z The difference between the maximum and minimum values in the bar graph of relative compression fo...
Page 62: ...SoftwareInstallation H 8 Connection H 8 MainInterfaceofPCLink H 8 OscilloscopeFunction H 9 SystemSetup H 9 Open H 9 Save H 9 PCLink H 9 Print H 10 Exit H 10 IgnitionFunction H 10 SystemSetup H 10 Ope...
Page 63: ...z Connect KES 200 to the 12V DC switch power or let KES 200 enter the testing mode to get power Main Interface of PC Link The main interface of PC link is as shown in Fig 8 01 Fig 8 01 Scope The Oscil...
Page 64: ...Save This function allows saving the current waveforms to the computer While using this function click the SAVE icon select the file to be opened in the selection dialog box PC Link This function can...
Page 65: ...oscope Function as shown in the Fig 8 05 Fig 8 05 System Setup This function is mainly used to set up the communication port See Fig 8 06 Fig 8 06 Open This function is the same as that of the oscillo...
Page 66: ...y the puncture voltage in bar graph MOVE This function is the same as that of oscilloscope ZOOM IN OUT This function is the same as that of oscilloscope GRIDDING This function is the same as that of o...