Table of Contents
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Table of Contents
Related Manuals for GTC GTC505
Summary of Contents for GTC GTC505
- Page 1 User’s Manual ENGINE IGNITION ANALYZER General Technologies Corp.
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Page 2: Table Of Contents
Page 8 6.1 Chart view Page 8 6.2 Comparison view Page 8 6.3 Digital view Page 9 6.4 Waveform View Page 10 7. Measurement procedures Page 10 7.1 Flexible probe and sensor setup (GTC505 and GTC505m) Page 11 7.2 Extension cable and sensor setup (GTC505m only) Page 11 7.3 Measuring coil on plug and coil near plug ignition systems Page 11 7.4 Measuring ignition systems with spark plug wires Page 12 8. Recharging the instrument Page 13 9. Maintenance Page 14 10. Warranty Page 14 1. -
Page 3: Technical Specifications
2. TECHNICAL SPECIFICATIONS 2.1 General specifications Display: 3.5” TFT LCD, 320 x 240 pixels resolution. Frame rate: Up to 30 times per second. Ignition system type: Coil on plug, coil near plug, DIS, waste spark, conventional, and magneto. Engine cycle: 2 or 4 strokes. Power (internal): 3.2 volt/1500 mAh, rechargeable LiFePO4 battery. Auto power off: Automatically powers off after 3 min. of inactivity. Battery life: Approximately 6 hours of continuous operation. USB connector (input): Micro USB (5 Volt / 0.5 Amperes DC). Probe length: 13.5” (34 cm) including sensor. Dimensions: 6.3” x 3.9” x 1.3” (160 x 99 x 34 mm) without probe. Weight: Approximately 14 oz. or 406 g without probe. Included accessories: Spark plug wire sensor, coil on plug sensor, BNC flexible probe, protective rubber holster, padded hard carrying case, micro USB cable, AC power adaptor, and user’s manual. The model GTC505m also includes a 78” (2 m) extension cable and a clip-on spark plug wire sensor. -
Page 4: General Description
3. GENERAL DESCRIPTION 3.1 Instrument description Micro USB connector BNC connector LCD display Protective hoster POWER/CLEAR button HOLD button CYCLE button VIEW button MODE button Fig. 1 - Instrument description 3.2 Display description Engine cycle Mode Display Tachometer Battery setting setting setting reading level 01607 Status indicators Measurement display area Fig. 2 - LCD Display Page 3... -
Page 5: Buttons, Icons And Menus Operation
4. BUTTONS, ICONS AND MENUS OPERATION 4.1 ‘POWER/CLEAR’ button • When the instrument is OFF, to turn it ON press and hold the ‘POWER/CLEAR’ button until the unit turns on (in approximately 1 second). • When the instrument is ON, to turn it OFF press and hold the “POWER/CLEAR’ button until the display turns OFF (in approximately 3 seconds). • When the instrument is ON, press the ‘POWER/CLEAR’ button to clear all measurement data, and start a new measurement. This operation can be also be performed to re-scale the measurements and optimize viewing in the display. • The ‘Auto Power Off’ feature will automatically turn the instrument off after 3 minutes of no button being pressed or 15 seconds after the last spark signal was detected. Turning the unit off manually when not in use will prolong battery life. -
Page 6: Mode Button And Menu
4.3 ‘MODE’ button and menu The ‘MODE’ button allows the selection of the type of measurement to be shown in the display. Upon pressing this button a pull down menu will open with the current setting highlighted, To change the setting press the ‘MODE’ button repeatedly until the desired setting is highlighted, then wait until the pull down menu closes. The new current setting will be displayed as the mode icon at the top of the screen. 01607 Burn Time Dwell Tachometer Voltage Fig. 4 - Measurement mode selection menu Measuring/displaying spark burn (firing) time. Measuring/displaying dwell angle or ramp time (automatically selected depending on the connected sensor). Measuring/displaying RPM (tachometer). Measuring/displaying spark plug voltages. 4.4 ‘VIEW’ button and menu The ’VIEW’ button is used to select how the chosen measurement will be shown in the display. Upon pressing this button a pull down menu will open with the current setting highlighted. To change the setting press the ‘VIEW’... -
Page 7: Hold Button And Menu
01607 Chart Comparison Digital Waveform Fig. 5 - Display mode selection menu Chart (i.e. trend line) view. Comparison view. Analog gauge and digital readouts Waveform (i.e. oscilloscope) view. 4.5 ‘HOLD” button · When chart, digital or waveform display mode is selected, pressing the ‘HOLD’ button will pause the measurement, hold the current display, and the word “HOLD” will be shown in the measurement area of the display to indicate this status. Press the ‘HOLD’ button again to resume normal operation . · When in the comparison display mode, this button is used to initiate and stop a measurement. For details see ‘6.2 Comparison view’. 4.6 Tachometer reading Digital readout of the engine RPM. 4.7 Battery level indicator The battery level indicator provides an approximate indication of the state of charge of the internal battery, as follows: Full Empty NOTE: The instrument will turn automatically off if the battery voltage falls below the absolute minimum. Page 6... -
Page 8: Measurement Modes
5. MEASURING MODES There are four different ignition system parameters that can be selected for measurement, depending on the engine’s ignition system: • Engine RPM. • Spark burn (firing) time. • Spark plug voltage. • Dwell angles (for ignition systems equipped with high voltage spark plug wires). • Primary ignition coil current ramp time (for coil on plug and coil near plug ignition systems). 5.1 Engine RPM Measures engine RPM (revolutions per minute) in 2 and 4 stroke engines, and may be used in combination with other measurements to evaluate ignition system performance at different engine speeds. 5.2 Spark burn (firing) time The spark burn time, also called “firing time”, is the measurement of the period from the moment a spark is initiated up to the point when it is extinguished, and is the most indicative measurement of performance of the ignition system. Abnormally long or short burn times may indicate some problem in the ignition module, spark plug, fuel mixture, cylinder compression, etc. 5.3 Spark plug voltage Spark plug voltage values are useful for comparing the performance of the ignition system between cylinders. This may be used to diagnose common problems like misfires, broken... -
Page 9: Display Views
6. DISPLAY VIEWS There are four views that can be selected to display measurements: • Chart • Comparison • Digital • Waveform 6.1 Chart view This view displays the selected measurement’s value corresponding to each of the last 276 sparks, with the left most measurement being the oldest, and the right most the newest. The measurement scale and units are located on the vertical axis, at the far left of the display. 01607 Fig 6 - Chart view display • ‘POWER/CLEAR’ button: Pressing the Power/Clear button clears all values from the chart, and re-scales the chart if necessary. • ‘MODE’ button: Pressing the ‘MODE’ button once will open the mode menu, and highlight the measurement mode currently selected; pressing the ‘MODE’ button again while the menu is open will select the next available measurement mode. All four measurements (spark burn time, RPM, spark plug peak voltage, and dwell angle or ramp time) are simultaneously tracked and stored, and are available for viewing at any time (without delay). • ‘HOLD’ button: Pressing this button will pause the measurement, and hold the display in its the current condition. Pressing the ‘HOLD’ button again will resume normal measurement. 6.2 Comparison view This mode allows the comparison of sets of values (minimum, average and maximum measurements) between several cylinders, under various testing conditions, or other situations. The measurements are displayed from left to right, with the left most set of values being the oldest, and the right most the newest . A new set of values is added every... -
Page 10: Digital View
01607 Maximum Average Minimum Oldest set Newest set Fig. 7 - Comparison mode display • ‘POWER/CLEAR’ button: Pressing the ‘POWER/CLEAR’ button clears all measurements, and re-scales the chart if necessary. • ‘MODE’ button: Pressing the ‘MODE’ button once will open the mode menu, and highlight the measurement mode currently selected; pressing the ‘MODE’ button again while the menu is open will select the next available measurement mode. All four measurements (spark burn time, RPM, spark plug peak voltage and dwell angle and ramp time) are simultaneously tracked and stored, and are available for viewing at any time (without delay). • ‘HOLD’ button: The ‘HOLD’ button when pressed once pauses measurement and holds the display in its current condition (while displaying a “HOLD” label in the center of the screen). Pressing the ‘HOLD’ button a second time will remove the pause (and label), and add a new set of values at the right of the screen, which will keep updating until the ‘HOLD’ button is pressed again. This cycle repeats every time the button is pressed twice (stop/ start) and up to the last 16 set of values will be shown in the display at once, if this maximum is exceeded the oldest set will be deleted and a new set added. 6.3 Digital view This view provides analog gauge and digital readouts for the selected measurement, as well as digital readouts for the three other measurements. 01607 7.14 5.20 6.71 PEAK Fig. 8 - Digital mode display Page 9... -
Page 11: Waveform View
• ‘POWER/CLEAR’ button: Pressing the ‘POWER/CLEAR’ button clears all digital readout values, and re-scales the gauge if necessary. • ‘MODE’ button: Pressing the ‘MODE’ button once will open the mode menu, and highlight the measurement mode currently selected; pressing the ‘MODE’ button again while the menu is open will select the next available measurement mode. All four measurements (spark burn time, RPM, spark plug peak voltage and dwell angle and ramp time) are simultaneously tracked and stored, and are available for viewing at any time (without delay). • ‘HOLD’ button: Pressing this button will pause measurement, and hold the display in the current condition. Pressing the ‘HOLD’ button again will resume normal measurements. 6.4 Waveform view This mode displays the signal amplitude over time (like an oscilloscope). The scale and units of the measurement are located on the vertical axis, at the far left of the display. The time scale and units are shown below the horizontal axis, at the bottom of the screen. 01607 Fig. 9 - Waveform display • ‘POWER/CLEAR’ button: Pressing the ‘POWER/CLEAR’ button clears the graph, and re-scales if necessary. -
Page 12: Flexible Probe And Sensor Setup (Gtc505 And Gtc505M)
The instrument will automatically detect and configure according to the sensor connected to the probe or extension cable. Using the wrong sensor for the ignition system under measurement may lead to erroneous readings, or no readings at all. 7.1 Flexible probe and sensor setup (GTC505 and GTC505m) This instrument is supplied with a flexible probe, and two types of sensors: • Flexible probe: equipped with a BNC connector at one end and a barrel connector at the other. • COP sensor: for measuring coil on plug and coil near plug ignition systems. • SPW sensor: for all ignition systems which use high voltage wires (spark plug wires) to connect the ignition coil or distributor to the spark plug. COP sensor SPW sensor Flexible probe Fig.10 - Sensors connection to flexible probe 1- Connect the probe to the instrument using their BNC connectors. 2- Insert and firmly press the appropriate COP or SPW sensor into the barrel connector of the probe. -
Page 13: Measuring Ignition Systems With Spark Plug Wires
3- Turn the instrument on and select the appropriate cycle for the engine under measurement. 4- Select the desired mode and view. 5- Place the COP sensor on the top and center of the ignition module (as shown in the Fig. 12), and observe whether the instrument is able to detect and display the desired measurement. COP sensor Ignition module Fig. 12 - Using the COP sensor on a ignition module 6- If the instrument is unable to detect the ignition system signal, it may be necessary to reposition the sensor so that a consistent signal is detected and displayed. NOTES • The position of the sensor and the particular design of the ignition module may affect the signal’s shape shown when the waveform display is selected. In order to compare waveforms between several cylinders’ ignition modules, the placement of the sensor relative to the ignition module should be kept as consistent as possible for all the... -
Page 14: Recharging The Instrument
6- If using the clip-on SPW sensor, place the spark plug wire into the slot of the sensor, as far as possible from other spark plug wires, and turn the body clockwise 60° to lock the sensor on the spark plug wire. To unlock, turn the body of the sensor 60° counterclockwise. Fig. 14 - Using the clip-on SPW sensor on a spark plug wire 7- If the instrument is unable to detect the ignition system signal, it may be necessary to reposition the sensor so that a consistent signal is detected and displayed. NOTES • The absolute spark plug voltage reading will depend on the position of the sensor, the particular characteristics of the wire, etc.. Therefore the placement of the sensor relative to the wire should be keep as consistent as possible for all the measurements in order to compare voltage readings between several cylinders’ spark plug wires. -
Page 15: Maintenance
Protect the unit from contact with any solvents. Never clean with a solvent or petroleum based medium such as gasoline, as these chemicals may attack the plastic parts and cause permanent damage. Never use an abrasive cleaner. Cleaning should be limited to wiping with a clean damp paper towel and a small amount of soap if required. Dry the unit thoroughly after any cleaning. The unit is a sealed instrument, and contains no user serviceable parts. Opening this instrument will void the warranty. 10. WARRANTY This instrument carries a one (1) year warranty (from the date of purchase by the original owner) against defects of material or workmanship. For details see our Standard Warranty Information on our web page at www.gtc.ca, or request a printed copy. Page 14... - Page 16 Part # GTC505MN1707EN To visit our website, scan the QR code below with your smart phone. Or type this URL in your browser: www.gtc.ca #121 - 7350 72nd Street Tel: (604) 952-6699 Delta, BC Fax: (604) 952-6690 Canada V4G 1H9 email: info@gtc.ca © 2016-2017 General Technologies Corp. Printed in Canada “SmarTach”, “V Ready”, “GTC505” and “GTC” are trademarks of General Technologies Corp.
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