KDS-Pro Knock Detection System User`s Manual
Contents
1. KDS Pro Knock Detection System User s Manual Version 000 M00000 Check the components 1 KDS Pro 2 SENSOR WASHER 3 MAIN HARNESS 4 LOGGER HARNESS 5 LED FLASHER 6 USER S MANUAL Introduction KDS Pro can detect knocking by using the plug seat pressure sensor Plug sensor inserted between spark plug and cylinder head If knocking occurred pressure in cylinder becomes too high This high pressure could cause serious damage inside the cylinder If you could detect the knocking you can change the setting before engine damaged seriously KDS Pro analyzes the pressure level of knocking and count the number of knocking occurred Knocking detection using plug seat pressure sensor 2 Detect two knocking level high and low 3 Two color LED flasher to tell knocking occurred 4 Peak and average pressure of knocking are logged 5 Output to DATA LOGGER 6 Size 70x50x20mm Weight 100g 7 Supply power voltage range is 10 16V 8 Max power consumption 12V 100mA When backlight and flasher are active Caution 1 Proper setting must be changed by every engine spec and tuning type KDS Pro might not work correctly when setting is not enough Please read well the user s manual and set up properly according to order 2 Plug pressure sensor can be used only for plugs which diameter is 14mm Spark plug must be fixed with 2 5kgf m of torque 3 Don t disassemble KDS Pro 4 Check the harness carefully If yo2. connect KDS Pro to DATA LOGGER you can check the information of knocking by analyzing the DATA LOGGER after you drive If DATA LOGGER has analog input port 0 5V input KDS Pro can output the knocking pressure level by analog value Select OUT MODE ANALOG in OPTION menu Maximum pressure level 63 correspond to SV output and minimum pressure level 0 correspond to OV output If you select the OUT MODE DIGITAL in OPTION menu SV pulse is output when knocking occurred Spark plug Plug sensor is inserted between spark plug and cylinder head so spark plug must be longer For example if your spark plug size is 14 D x 19 L mm use 14 D x 22 L mm size plug for plug sensor Spark plug must be fixed with 2 5kgf m of torque Use register plug to reduce the spark noise Setting example 1 IAME Parilla Reedster GAIN ADJ 40 LVL HI 20 LVLLO 10 2 VORTEX RAD GAIN ADJ 40 LVL HI 30 LVLLO 15 In case of Japan
3. ine that you use for the first time 1 Atfirst you must decide the sensor gain sensor sensitivity Set up following value on the device GAIN ADJ 80 sensor gain volume is on the back side of the device LVL LOW 5 Minimum value LVL HIGH 63 Maximum value After counter cleared start run and adjust better carburetor setting If knocking occurred green lamp flashes In this case you may get many flashes because of high sensitive sensor setting Just continue to advance carburetor setting as usual After carburetor setting check the peak pressure level in PEAK menu If you could see the green flash some information of knocking are logged Peak level of 30 40 means sensor gain is ideal level But if you got 60 or more it means sensitivity is too high and you must reduce sensitivity Larger GAIN ADJ value means high sensitivity If you adjust the GAIN ADJ value from 80 to 40 sensitivity becomes half and PEAK value also becomes half In case that you don t get any knocking with high sensor sensitivity or peak pressure is too small less than 10 maybe carburetor setting is still rich or engine compression is low What is more driver who accelerates smoothly doesn t get many 2 Low level threshold setting LVL LOW Knocking pressure level over low level threshold causes flash of green lamp and count up of LO You can adjust low level threshold in LVL LOW menu LVL LOW value effects flashing frequency green color to tell knocking t
4. nge of power supply is 10V to 16V Use 12V battery normally 5 When you connect to DATA LOGGER attach appropriate connector to logger harness Black line is GND Blue line is Output Output signal range is OV to 5V Push slowly when you insert the connector because coupling is tight Pull slowly when you remove the connector because coupling is tight Never pull harness Harness must be mounted appropriately Not too tight not too loose 4 MODE Push MODE CLEAR button to change mode COUNT MODE on when turned on power Mode will get back to COUNT MODE when any key input is not done for 25 second 1 COUNT MODE HI It counts up when knocking pressure exceeds high level threshold LO It counts up when knocking pressure exceeds low level threshold 2 PEAK AVRG MODE PEAK It records the max value of peak pressure caused by knocking Max value 63 AVRG It records the average for counted knocking pressure Max value 63 3 HIGH LEVEL SETTING MODE LVL HIGH It shows the value of high level threshold Red lamp flashes when knocking pressure level exceeds this value 4 LOW LEVEL SETTING MODE LVL LOW It shows the value of low level threshold Green lamp flashes when knocking pressure level exceeds this value 5 OPTION MODE OPTION Option setting and test mode Mode changes by UP button 5 1 FLASHER TEST Checked operation for Flasher ANALOG TEST Analog signal pattern 5V gt OV gt 5V is outp
5. o driver Too low value causes too much flash and annoy drivers Too high value causes oversight because of few flashing Start with 10 and adjust so that it could be best frequency for drivers 3 High level threshold setting LVL HIGH Knocking pressure level over high level threshold causes flash of red lamp and count up of HI You can adjust high level threshold in LVL HIGH menu Proper value for LVL HIGH should be 1 5 2 times as many as the LVL LOW When temperature and track condition changes and knocking come to increase knocking pressure becomes high and rising up its average Now basic setting is completed Run and check the information of knocking and engine damage It s important to know the deadline of knocking counts and pressure level to avoid engine trouble How to use 12Vis supplied to Unit power could be turned on 2 Push MODE CLEAR button for 4 seconds to clear any counted value to 0 zero 3 Check values on HIGH LOW level Modify values pushing UP DOWN button 4 Check that Count mode is selected before driving 5 Red lamp flashes when knocking pressure level over high level threshold line Green lamp flashes when knocking pressure level over low level threshold line 6 Please memorize all the data that you got Count High Low Peak Average The value on Count Peak and Average are saved on unit memory Connection to DATA LOGGER KDS Pro can output knocking information to DATA LOGGER If you
6. u break the harness KDS Pro doesn t work properly 5 Don t get gasoline or organic solvent on KDS Pro and harness Plastic might dissolve Component detail Front Side Back Side MODE CLEAR Button UP Button DOWN Button MODE UP DOWN Display CLEAR Sensor Gain Volume HI LO K DS Pro Knock Detection System LED Flasher Connector Logger Connector Main Harness Connector MODE CLEAR button Change mode Clear counted number UP button Increase value High Low Level Setting Max 63 DOWN button Decrease value High Low Level Setting Min 5 Sensor Gain volume Adjustment of sensor gain sensitivity Main harness connector 4 pin male connector Logger harness connector 3 pin female connector Flasher connector 4 pin female connector LCD display Connection MODE UP DOWN CLEAR HI LO KDS Pro Knock Detection System Spark Plug LED Flasher 2P Connector To Logger gt Black D GND Copper Washer Blue Output Plug Sensor M To Cylinder Head 1 Mount KDS Pro to front panel ee 10 16V 2 Mount flasher to handle Check carefully cable tension when you steer the handle 3 Connect Plug sensor connector to 2 pin connector of main harness Plug gt Copper washer gt Plug sensor gt Cylinder head Check above figure Spark plug must be fixed with 2 5kgf m of torque 4 Black line of main harness is GND Red line of main harness is power Ra
7. ut to DATA LOGGER DIGITAL TEST LO A low level digital signal OV is output to DATA LOGGER 5 4 DIGITAL TEST HI Ahigh level digital signal 5V is output to DATA LOGGER GAIN ADJ Set up sensor gain sensitivity Select this mode and adjust value by back side volume Use small minus driver Turn the volume to right to increase the sensor sensitivity Turn the volume to left to decrease the sensor sensitivity Sensitivity becomes half if the gain value becomes half 5 6 OUT MODE Set up for output signal type to DATA LOGGER Push DOWN to change signal ANALOG DIGITAL Choose ANALOG to connect analog port of DATA LOGGER Pressure level is output just when knocking level exceeds low level Choose DIGITAL to connect digital port of DATA LOGGER 5V of digital pulse is output just when knocking level exceeds low level 5 7 LOG RATE Set up sampling rate of DATA LOGGER Push DOWN to choose 10Hz 100Hz Choose 100Hz if sampling rate of your DATA LOGGER is more than 100Hz 5 8 VERSION Displayed version of Hardware and Software How to set up parameter You will find various types of knocking caused engine type and how your engine is tuned up So only one setting is not enough to detect all kind of knocking and proper setting must be done to analyze your engine Required settings are high low threshold level and sensor gain sensitivity Proper setting value must be found by yourself in case that you use KDS Pro for the eng
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