Snap-on Modis User Manual
Lab Scope Plug-in
User Manual
September 2010
EAZ0007E07G Rev. A
T rademark Acknowledgments
Snap-on, Fast-Track, Scanner, and MODIS are trademarks of Snap-on Incorporated.
All other marks are trademarks or registered tr ademarks of th eir resp ective hold ers.
Copyright Information
©2010 Snap-on Incorporated. All rights rese rved.
Disclaimer
The information, specifications and illustrations in this manual are based on the latest information available at the
time of printing.
Snap-on reserves the right to make changes at any time without notice.
Visit our website at:
www.snapon.co m/solus (Nor th America)
snapondiag.com (Europe)
sun-diagnostics.com (Europe)
For Technical Assistance
CALL 1-800-424-7226 (North America )
CALL +44 (0) 845 601 4736 (United Kingdom)
E-mail DiagnosticsUKproductsupport@snapon.com (United King dom)
For technical assistance in all other markets, cont act your selling agent.
Safety Information
!
DANGER
!
WARNING
For your own safety and the safety of others, and to prevent damage to the equipment an d
vehicles upon which it is used, it is important that the accompanying Safety Information be read
and understood by all persons operating, or coming into contact with, the equ ipment. We suggest
you store a copy the book near the unit in sight of the oper ator
This product is intended for use by properly trained and ski lled pro fessional automo tive
technicians. The safety messages presented throughout this manual are reminders to the
operator to exercise extreme care when using this test instrument.
There are many variations in procedures, techniques, tools, and p art s for servicing vehicles, as
well as in the skill of the individual doing the work. Because of the vast number of test applications
and variations in the products that can be tested with this instrument, we cannot possibly
anticipate or provide advice or safety messages to cover every situation. It is the automotive
technician’s responsibility to be knowledgeable of the system being tested. It is essential to use
proper service methods and test procedures. It is import ant to perform tests in an appropriate and
acceptable manner that does not endanger your sa fety, the safety of others in the work area, the
equipment being used, or the vehicle being tested.
It is assumed that the operator has a thorough underst anding of vehicle systems before using this
product. Understanding of these system principl es and oper ating theor ies is nece ssary for
competent, safe and accurate use of this instrument.
Before using the equipment, always refer to and follow the safety messages and app licable te st
procedures provided by the manufacturer of the vehicle or equipment being tested. Use the
equipment only as described in this manual.
Read, understand and follow all safety messag es and instructio ns in this manual, the
accompanying safety manual, and on the test equi pment.
Safety Message Conventions
Safety messages are provided to help prevent personal injury and equipm ent damage. All safety
messages are introduced by a signal word indicating the haza rd level.
Indicates an imminently hazardous situation which, if not avoided, will result in death or serious
injury to the operator or to bystanders.
Indicates a potentially hazardous situation which, if n ot avoided, could result in death o r serious
injury to the operator or to bystanders.
iii
Safety Information Important Safety Instructio ns
!
CAUTION
!
WARNING
Indicates a potentially hazardous situation which, if not a voided, may r esult in modera te or mino r
injury to the operator or to bystanders.
Safety messages contain three different type styles.
• Normal type states the hazard.
• Bold type states how to avoid the hazard.
• Italic type states the possible consequences of not avoid ing th e hazard.
An icon, when present, gives a graphical description of the potential hazard.
Example:
Risk of unexpected vehicle movement.
• Block drive wheels before performing a test with engine running.
A moving vehicle can cause injury.
Important Safety Instructions
For a complete list of safety mess ages, refer to the accomp anying safety manual.
SAVE THESE INSTRUCTIONS
iv
Table of Contents
Safety Information..................................................................................................................... iii
Safety Message Conventions.......................................................................................................iii
Important Safety Instructions...................... ... ... .... ... ... ... ....................................... ... ... .... ..............iv
Table of Contents....................................................................................................................... v
Chapter 1: Using This Manual................................................................................................... 1
Conventions.................................................................................................................................. 1
Bold Text................................................................................................................................ 1
Symbols ................................................................................................................................. 1
Terminology ........................................................................................................................... 2
Note and Important Messages............................................................................................... 2
Procedures............................................................................................................................. 2
Additional Manuals........... ... .... ... ....................................... ... ... ... ....................................... ........... 3
Tool Help...................................................................................................................................... 3
Chapter 2: Getting Started......................................................................................................... 4
Powering the MODIS™ Unit.........................................................................................................4
Connecting Leads and Adapters................ ... ... .... ...................................... .... ... ... ........................ 4
Channel One Lead............ ... ... ... ... .... ... ....................................... ... ... ... .................................. 4
Channel Two Lead........ .... ... ... ... ....................................... ... ... .... ...................................... ..... 5
Channel Three Lead ......................................... ... ... .... ...................................... ... .... ... ...........6
Channel Four Lead ........................................ ... ... ... ....................................... ... ... .... .............. 6
Secondary Coil Adapter Lead................................................................................................ 7
Inductive RPM Pickup Adapter .............................................................................................. 8
Chapter 3: Introduction.............................................................................................................. 9
Functional Description...................................... .... ... ... ... .... ... ...................................... .... ... ......... 10
Technical Specifications............................................................................................................. 10
Capabilities................................................................................................................................. 11
Leads, Probes and Adapters......................................................................................................12
Channel 1 Lead............. .... ...................................... .... ... ... ... ....................................... ... ...... 12
Channel 2 Lead............. .... ...................................... .... ... ... ... ....................................... ... ...... 13
Channel 3 Lead ................... ....................................... ... ... ... ....................................... ... ...... 13
Channel 4 Lead............. .... ...................................... .... ... ... ... ....................................... ... ...... 13
Alligator Clips....................................................................................................................... 13
Test Probes.......................................................................................................................... 14
Secondary Coil Adapter Lead.............................................................................................. 14
Secondary Ignition Clip-on Wire Adapter............................................................................. 14
Inductive RPM Pickup Adapter ............................................................................................ 14
Chapter 4: Navigation .............................................................................................................. 15
Screen Layout ............................................................................................................................ 15
Upper Toolbar......................... ... ... .... ... ... ... ....................................... ... .... ... ......................... 15
Main Body............................................................................................................................ 16
v
Table of Content s
Lower Toolbar......................... ... ... .... ... ... ... ....................................... ... .... ... ......................... 16
Making Selections ...................................................................................................................... 17
Chapter 5: Multimeter Operations........................................................................................... 18
Selecting Multimeter Software.................................................................................................... 18
Graphing Meter.................................................................................................................... 19
Digital Meter......................................................................................................................... 20
Performing Multimeter Tests ............................ ....................................... ... .... ... ......................... 20
Changing Views................................................................................................................... 20
Pausing Data ....................................................................................................................... 21
Using Zoom..........................................................................................................................22
Using Cursors ...................................................................................................................... 22
Taking Snapshots ................................................................................................................23
Resetting Gauges .......................................... ...................................... .... ... ... ......................24
Saving Data ......................................................................................................................... 24
Printing................................................................................................................................. 25
Using Setup ......................................................................................................................... 25
Calibration Indicator............................................................................................................. 27
Adjusting Channel Settings.................................................................................................. 27
Setting the Sweep Time.................... ... ... ... ....... ... ... .... ... ... ... ... .... ... ... ... .... ... ... ... ... ....... ... ... ... 30
Chapter 6: Scope Operations.................................................................................................. 31
Selecting Scope Software .......................................................................................................... 31
Lab Scope............................................................................................................................ 32
Ignition Scope ...................................................................................................................... 32
Performing Scope Tests... ... .... ... ....................................... ... ... ... ....................................... ... ...... 35
Changing View..................................................................................................................... 35
Saving Data ......................................................................................................................... 36
Using Setup ......................................................................................................................... 36
Adjusting Channel Settings.................................................................................................. 38
Displaying Triggers .............................................................................................................. 39
Using Presets............................................................................................................................. 41
Identifying Saved Presets .................................................................................................... 42
Loading Saved Presets........................................................................................................ 42
Editing Presets..................................................................................................................... 42
Deleting Presets................................................................................................................... 43
Copying and Moving Presets............................................................................................... 44
Selecting Multiple Presets.................................................................................................... 44
Appendix A: Testing Tips........................................................................................................45
General Tips........................................ .... ... ... ....................................... ... ... .... ............................ 45
Using the Split Lead Adapter...................................................................................................... 45
Connecting the Pressure Transducer .................................................................................. 46
Connecting the Inductive RPM Pickup Adapter................................................................... 47
Appendix B: Using Peak Detect.............................................................................................. 48
When To Use Peak Detect.........................................................................................................48
Example—Testing Secondary Ignition................................................................................. 48
Example—Testing a TPS for Glitches.................................................................................. 50
When Not to Use Peak Detect.................................................................................................... 52
Example—Testing an Oxygen Sensor................................................................................. 52
vi
Table of Content s
Peak Detect and the Graphing Meter......................................................................................... 53
Appendix C: Using Noise Filter............................................................................................... 54
When to Use Filter...................................................................................................................... 54
Using the Filter with the Graphing Meter.............................................................................. 54
Using the Filter with the Scope ...................................... ...................................... .... ... ......... 57
Appendix D: Using Sensitivity Adjustment............................................................................ 59
When To Use Sensitivity Adjustment ......................................................................................... 59
Improper Sensitivity Adjustments .. .... ... ... ... .... ...... ... .... ... ... ... ... .... ... ... ... .... ... ... ... ... .... ...... ... ... 59
Some Common Ignition Problems.............................................................................................. 62
Example–Vehicle With A Shorted Spark-Plug ..................................................................... 62
Example–Vehicle With A Coil Not Firing.............................................................................. 63
Index.......................................................................................................................................... 65
vii
Chapter 1 Using This Manual
This manual contains tool usage instructions.
Some of the illustrations shown in this manual may contain modules and optional equipment that
are not included on your system. Contact a sales representative for availability of other modules
and optional equipment.
1.1 Conventions
1.1.1 Bold Text
Bold emphasis is used in procedures to highlight select able items such as butto ns and menu
options.
Example:
• Press the Y/a button.
1.1.2 Symbols
The following types of arrows are used.
The “greater than” arrow (>) indicates an abbreviated set o f se lection instructions.
Example:
• Select Utilities > T ool Setup > Date.
The above statement abbreviates the following procedu re:
1. Navigate to the Utilities button.
2. Use the Thumb Pad to navigate to and highlight the Tool Setup submenu.
3. Use the Thumb Pad to navigate to and highlight the Date option from the submenu.
4. Press Y/a to confirm the selection.
The solid arrows (e, c, d, b) are navigational instructions referring to the four directions of the
Thumb Pad.
Example:
• Press the down d arrow.
1
Using This Manual Conventions
NOTE:
IMPORTANT:
1.1.3 Terminology
The term “select” means highlighting a button or menu item u sing the Thumb Pad and pressing
the Y/a button to confirm the selection.
Example:
• Select Reset.
The above statement abbreviates the following procedu re:
1. Navigate to and highlight the Reset button.
2. Press the Y/a button.
1.1.4 Note and Important Messages
The following messages are used.
Note
A NOTE provides helpful information such as additional explanations, tips, and comment s.
Example:
i For additional information refer to...
Important
IMPORTANT indicates a situation which, if not avoided, may result in damage to the test
equipment or vehicle.
Example:
Do not force the CompactFlash® card into the slot.
1.1.5 Procedures
An arrow icon indicates a procedure.
Example:
z To change screen views:
1. Select View.
The drop-down menu displays.
2. Select an option from the menu.
The screen layout changes to the format you selected.
2
Using This Manual Additional Manuals
1.2 Additional Manuals
Tools that work in conjunction with various hardware and so f tware m odules have sep ara te
manuals available for each of the modules.
1.3 T ool Help
Your unit has Tool Help containing reference and procedural info rmation fou nd in this and othe r
tool related user’s manuals. From the main menu, access T ool Help on the Utilities menu.
3
Chapter 2 Getting Started
This section explains how to get started using your MODIS™ Lab Scope Plug -in.
Before you can use your MODIS™ Lab Scope Plug-in, you must do the following:
1. Power the MODIS™ unit.
2. Connect leads and adapters, as needed.
2.1 Powering the MODIS™ Unit
Refer to your MODIS™ Display User Manual for more unit powering information.
z To power on the unit:
• Press the Power button.
2.2 Connecting Leads and Adapters
The following section explains how to connect the provided Lab Scope Plug-in lea ds and
adapters, as needed.
2.2.1 Channel One Lead
Figure 2-1 Sample yellow lead connection
4
Getting Started Connecting Leads and Adapters
IMPORTANT:
z To connect the Channel 1 lead:
1. Plug the right-angled black ground plug to th e common gro und socke t on the Lab Sco pe
Plug-in. The black stackable plug is not connecte d to the lab scop e. It is used when
connecting another lead that requires a connectio n to the commo n ground so cket.
2. Plug the right-angled yellow connector into the socket labeled CH1.
3. Attach the yellow alligator clip to the yellow straight end of the lead and the black alligator clip
to the black straight end of the lead.
4. Connect both of the alligator clip ends to the test vehicle, as needed .
When another lead requires a connection to the lab scope common groun d socket, conne ct its
black common ground plug to the loose CH1 black sta ckable le ad. T his method allows m ultiple
common ground leads to be connected to the lab scope common ground socket. It also avoid s a
stack of common ground plugs sticking up from th e lab sco pe module. Refer to Figure2-2,
Figure 2-3 and Figure 2-4 for details.
2.2.2 Channel Two Lead
z To connect the Channel 2 lead:
1. Plug the black ground plug of the Channel 2 lead into the stackable common ground plug of
the Channel 1 lead.
This ground connection shields the Channel 2 lead.
2. Plug the right-angled green connector into the socket labeled CH2 .
3. Attach the green alligator clip to the straight end of the Channel 2 lead.
4. Connect the alligator clip end to the test vehicle, as needed.
Figure 2-2 Sample green lead connection
5
Getting Started Connecting Leads and Adapters
2.2.3 Channel Three Lead
Figure 2-3 Sample blue lead connection
z To connect the Channel 3 lead:
1. Plug the blue connector into the socket labeled CH3.
2. Attach the right-angled blue alligator clip to the straight end of the lead.
3. Connect the alligator clip end to the test vehicle, as needed.
2.2.4 Channel Four Lead
Figure 2-4 Sample red lead connection
6
Getting Started Connecting Leads and Adapters
NOTE:
z To connect the Channel 4 lead:
1. Plug the red connector into the socket labeled CH4.
2. Attach the right-angled red alligator clip to the straight-end of the lead.
3. Connect the alligator clip end to the test vehicle, as needed.
2.2.5 Secondary Coil Adapter Lead
Figure 2-5 Sample Secondary Coil Adapter lead connection
z To connect the Secondary Coil Adapter lead:
1. Plug the right-angled black ground plug into the groun d socket on the Lab Scope Plug-in.
2. Plug the right-angled yellow connector into the socket labeled CH1.
3. Connect the ground clip to a good vehicle ground.
4. Connect the phono (RCA) plug into the clip -on coil wire adapter or coil adapters as needed for
the vehicle being tested.
i If you need to extend the length of the ground clip using a jumper wire, keep it as short as possible.
7
Getting Started Connecting Leads and Adapters
2.2.6 Inductive RPM Pickup Adapter
Figure 2-6 Sample Inductive RPM Pickup adapter connection
z To connect the Inductive RPM Pickup adapter:
1. Connect the DB9F connector to the AUX port on the Lab Scope Plug-in.
2. Connect the RPM Pickup to the spark plug wire on cylinder number one.
8
Chapter 3 Introduction
The Lab Scope Plug-in enables the following MODIS™ functions:
• Component Tests (Refer to your Component Tests User Manual for det ails.)
• Graphing Meter
• Digital Meter
• Lab Scope
• Ignition Scope
Figure 3-1
MODIS™ Lab Scope Plug-in
9
Introduction Functional Description
3.1 Functional Description
Figure 3-2 Top of MODIS™ unit and Lab Scope Plug-in
1— Common Ground socket
2— Channel 1 socket
Analog scope channel
3— Channel 2 socket
Analog scope channel
4— Channel 3 socket
Analog scope channel or DVOM minus lead
5— Channel 4 socket
Analog scope channel or DVOM plus lead
6— Aux Port (DB-9 PIN Female Connector)
Connection for an inductive RPM pickup or pressure/vacuum probe(s)
7— Lab Scope Plug-in slot
3.2 T echnical S pecifications
Dimensions:
Height:
7 1/2 inches
190.5 mm
Width:
5 3/4 inches
146.1 mm
Depth:
1 inch
25.4 mm
10
Introduction Capabilities
Weight:
8.1 oz
229 g
Fuse:
5A (Buss® ATC, Littlefuse® ATO, or equivalent)
Operating Temperature Range (ambient):
At 0 to 90% Relative Humidity (non-condensing)
32 to 104°F
0 to 40°C
Storage Temperature (ambient):
At 0 to 70% Relative Humidity (non-condensing)
–4 to 122°F
–20 to 50°C
3.3 Capabilities
The following tables detail the MODIS™ Lab Scope Plug-in capabilities.
Table 3-1
Channels 1–2 Common Grounds
Sample Rate
Bandwidth DC–3 MHz 3 db point @ 3 MHz
Input Impedance
V dc (Full Scale) 75 V maximum
V ac (Full Scale) Peak to
Peak Voltage
Table 3-2 Digital Meter Ohms and Diode Continuity tests
Channels 3–4
Input Impedance 10 M
Glitch capture Approximately 50 uS
Ohms 400
Diode Test 2 V Scale
Multimeter
Function Range Accuracy/Comments
Function Range Accuracy/Comments
6 MSPS
1.5 MSPS
@ DC
10 M
@ 3 MHz
5.8 k
50 V maximum
–40 M
Simultaneous
Continuous per channel
MSPS = mega samples
per second
All channels
Inputs between channels
3 (–) and 4 (+)
Fixed scales or Auto
Ranging
11
Introduction Leads, Probes and Adapters
IMPORTANT:
Table 3-3
Channels 1–4 Common grounds
Sample Rate
Bandwidth DC–3 MHz 3 db point @ 3 MHz
Input Impedance
V dc (Full Scale) 100 mV–400 V
V ac (Full Scale) Peak to
Peak Voltage
Scope
Function Range Accuracy/Comments
CH1 = 6 MSPS
CH2 = 3 MSPS
CH3–4 = 1.5 MSPS
@ DC
10 M
@ 3 MHz
5.8 k
100 mV–400 V
Continuous
MSPS = mega samples
per second
All channels
3.4 Leads, Probes and Adapters
The Lab Scope Plug-in uses standard safety banana plu gs that ar e comp atib le with many
accessories. Your kit comes with the various leads, probes, clips, and adapters explained in this
section. See “Connecting Leads and Adapters” on page 4 for more information.
When removing leads from their sockets, do not pull on the wire because it can damage the leads.
Pull on the plug.
3.4.1 Channel 1 Lead
The shielded yellow lead is used for Channel 1 (Figure 3-3) and other channel connections that
need additional grounding. The lead color matches the color of the CH1 socket on the L ab Scope
Plug-in unit and the trace color of Ch 1 on the test screens. This yellow lead includes a black, r ightangle, common ground plug and a black, st acka ble, right- angle, commo n ground plug.
Figure 3-3 Yellow Channel 1 Lead
12
Introduction Leads, Probes and Adapters
3.4.2 Channel 2 Lead
Figure 3-4 Green Channel 2 lead
The shielded green lead (Figure 3-4) is used for Channel 2. The lead color matches the color of
the CH2 socket on the Lab Scope Plug-in and the trace color of Ch 2 on the test scre ens. This
green lead includes a stacka ble, black, right- angle, gr ound pl ug.
3.4.3 Channel 3 Lead
Figure 3-5 Blue Channel 3 lead
The non-shielded blue lead (Figure 3-5) is used for Channel 3 or Digital Meter minus (-). The lead
color matches the color of the CH3 socket on the Lab Scope Plug-in and the trace color of Ch 3
on the Lab Scope test screen.
3.4.4 Channel 4 Lead
The non-shielded red lead (Figure 3-6) used for Channel 4 or Digita l Meter plus (+). The lead color
matches the color of the CH4 socket on the Lab Scope Plug-in and the trace color of Ch 4 on the
Lab Scope test screen.
3.4.5 Alligator Clips
Figure 3-6 Red Channel 4 lead
Figure 3-7 Alligator clip
Four insulated alligator clips are included and colored to match each test lead, plus a black clip for
the common ground lead (Figure 3-7). Each clip plugs into the straight end of the channel leads.
13
Introduction Leads, Probes and Adapters
3.4.6 Test Probes
Figure 3-8 Test probe
Two te st probes are included, one black a nd one red (Figure 3-8) and plug into the straight end of
the test leads.
3.4.7 Secondary Coil Adapter Lead
Figure 3-9 Secondary Coil Adapter lead
The Secondary Coil Adapter lead (Figure 3-9) connects to the clip-on secondary wire adapter,
coil-in-cap adapter or coil-on-plug adapter to display secondary waveforms.
3.4.8 Secondary Ignition Clip-on Wire Adapter
Figure 3-10 Secondary Ignition Clip-on Wire Adapter
The Secondary Ignition Clip-on Wire Adapter (Figure 3-10) connects the Secondary Coil Adapter
lead to the vehicle Secondary wire to display ignition patterns.
3.4.9 Inductive RPM Pickup Adapter
Figure 3-11 Inductive RPM Pickup adapter
The Inductive RPM Pickup adapter (Figure 3-11) connect s to the AUX port with a DB9F p lug to
trigger a waveform or display RPM. When used with the Ignition Scope, it conn ect s to cylinder
number one to establish proper cylinder order.
14
Chapter 4 Navigation
This section provides Lab Scope Plug-in navigation information . For det a iled info rmation on
general MODIS™ navigation, refer to the MODIS™ Display User Manual.
4.1 Screen Layout
The Scope screens (Figure 4-1) include an upper toolbar , a main bo dy, and a lower toolbar.
Available buttons and controls vary depending on the active mode an d st age of op eration.
1— Upper toolbar
2— Main body
3— Lower toolbar
4.1.1 Upper Toolbar
The upper toolbar controls vary depending on the modu le and st ag e of oper ations ( Table 4-1).
Table 4-1 Upper toolbar controls (part 1 of 2)
Name Button Description
View Lets you change the way data displays
Pause
Figure 4-1
15
Sample Lab Scope Plug-in screen
Stops data collection and lets you review the
buffered data
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