Fluke DIS 90 User manual

®
DIS 90
Ignition Adapter
Instruction Sheet
Introducing the DIS 90
The DIS 90 is an optional accessory for use with the Fluke 98
Automotive ScopeMeter®Series II, Version 2.70 and higher, to
measure parade on Distributorless Ignition Systems.
To check the version number press and simultaneously.
Please contact your local representative for information about
upgrading the version.
Unpacking
Check that the following items are included with the DIS 90 (see
Figure 1):
• Ignition Adapter Unit with installed 9V battery
• Secondary Pickup Set with 4 black clamps
• Secondary Pickup Set with 4 red clamps
LIMITED WARRANTY & LIMITATION OF LIABILITY
This Fluke product will be free from defects in material and
workmanship for one year from the date of purchase. This warranty
does not cover fuses, disposable batteries or damage from
accident, neglect, misuse or abnormal conditions of operation or
handling. Resellers are not authorized to extend any other warranty
on Fluke’s behalf. To obtain service during the warranty period,
send your defective product to the nearest Fluke Authorized
Service Center with a description of the problem.
THIS WARRANTY IS YOUR ONLY REMEDY. NO OTHER
WARRANTIES, SUCH AS FITNESS FOR A PARTICULAR
PURPOSE, ARE EXPRESSED OR IMPLIED. FLUKE IS NOT
LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
CONSEQUENTIAL DAMAGES OR LOSSES, ARISING FROM
ANY CAUSE OR THEORY.
Since some states or countries do not allow the exclusion or
limitation of an implied warranty or of incidental or consequential
damages, this limitation of liability may not apply to you.
Fluke Corporation Fluke Industrial B.V.
P.O. Box 9090 P.O. Box 680
Everett WA 7600 AR Almelo
98206-9090, USA The Netherlands
Safely using the DIS 90
Warning
Do the following to avoid electrical shock, fire, or
personal injury:
• Turn the engine off before making any
connections.
• Use the DIS 90 only on properly insulated
ignition cables.
• Keep the Fluke 98 and the DIS 90 leads away
from rotating parts and engine parts producing
heat.
• Thoroughly fix all test leads before doing a road
test.
• Read the safety section in the Fluke 98 Users
Manual (from page VI).
Powering the DIS 90
Connecting the DIS 90 for measurement
Figure 3 shows a connection example for a 4-cylinder DIS engine.
General connection procedure:
1. Connect the DIS 90 Adapter to the Fluke 98 Automotive
ScopeMeter as shown in Figure 3. Use a ground lead to
connect the COM input on the small connection unit to ground
e.g. battery ground.
2. Connect the round cable plug of the red secondary pickup
set to the Ignition Adapter box on the input with the red
grommet (connection to the input with the black grommet will
not fit because of different plug pinning!)).
3. Connect the round cable plug of the black secondary pickup
set to the Ignition Adapter box on the input with the black
grommet. (Connection to the input with the red grommet will
not fit because of different plug pinning!)
4. Connect the
black secondary pickup clamps to the spark
leads with negative polarity and the red secondary pickup
clamps to the spark leads with positive polarity.
You can check the polarities as follows (only possible with
engine running):
a. Use a black or red secondary pickup and clamp it to a
spark lead.
b. If the Fluke 98 displays an upward spark voltage, this
pickup is connected to the correct polarity. If a downward
spark voltage is displayed, the pickup is connected to the
wrong polarity. Then use a pickup with the other color for
this cylinder. Bear in mind that the spark voltage may be
low or not visible due to a defect. Refer to the section
“Indication of wrong polarity connections”on the back of
this sheet.
c. Use the next black or red secondary pickup and repeat
steps a and b until all pickups are connected.
6. Clamp the remaining pickups on the connecting cable to the
Ignition Adapter unit. See the example for four cylinders in
Figure 3 and for six cylinders in Figure 4. For safety reasons
and to get a reliable measurement result, these unused
pickups must not be left unconnected.
7. Clamp the Capacitive Secondary Pickup (CAP 90 or
PM9096/001) on a spark lead with negative polarity (black
pickup connected). Clamp it as close as possible to the spark
plug (see figure 4). This cylinder is then displayed as first
cylinder in the parade picture.
Figure 3. Measurement setup with the DIS 90 for a 4-cylinder dual-spark ignition coil system.
Figure 1. DIS 90 Package Contents
Figure 4. Connection of the unused pickups (example for six
cylinders)
June 1997, Rev. 4, 12/97
© 1997 Fluke Corporation,
All rights reserved.
Printed in the Netherlands
All product names are
trademarks of their respective
companies.
Figure 2. Powering the DIS 90
Automatic power off
after about 15
minutes
Blinking when
internal battery is
OK
Permanently
powered

Automotive Application Example
The following is an application example of how to measure a DIS
system (with dual-spark ignition coils) for a 4-cylinder engine. See
Figure 3.
Test Tool Key Sequence
Q
R
S
T
UConnect the DIS 90, the Capacitive Secondary Pickup, and
the ground leads as displayed on the Fluke 98 and depicted in
the example of Figure 3.
VStarts the secondary parade measurement.
Start the engine and observe the measurement result. See an
example display in Figure 5.
Measurement Result
Figure 5. Typical Result Screen
Indication of wrong polarity connections
Figure 6. One red (positive) and one black (negative) secondary
pickup swapped (4-cylinder system).
If you connect a pickup to a cable with the wrong polarity, the
ignition pulses of the related cylinder are displayed upside down
and the RPM display is not correct. In the example of Figure 6,
where two out of four pickups are wrongly connected, the RPM
display is half the real value.
Service and Maintenance
Storing the DIS 90
If you are storing the DIS 90 for an extended period of time, the
battery should be removed and stored separately. To remove the
battery, see Figure 7.
Replacing the 9V Battery
Warning
To avoid electrical shock, disconnect the DIS 90 from
the ignition cables before replacing the battery.
Note:
This instrument contains an alkaline battery. Do not
dispose of this battery with other solid waste. Used
batteries should be disposed of by a qualified recycler or
hazardous materials handler. Contact your authorized
FLUKE Service Center for recycling information.
Replace the 9V battery when the ‘BATTERY OK’LED on the
IGNITION ADAPTER unit remains off when the power is switched
on.
Service Centers
To locate an authorized service center, visit us on the World Wide
Web:
http://www.fluke.com
or call Fluke using any of the phone numbers listed below:
[phone] in U.S.A. and Canada
[phone] in Europe
[phone] from other countries
Specifications
FLUKE guarantees the properties expressed in numerical values
with the stated tolerance. Specified non-tolerance numerical values
indicate those that could be nominally expected from the mean of a
range of identical differential voltage probes.
GENERAL
DIS 90 application Parade measurement on
Distributorless Ignition Systems
with the Fluke 98 Automotive
ScopeMeter Series II, Version
2.70 and higher (see the note at
the bottom)
Maximum number of cylinders 8
4 positive igntion voltages (red
pickup clamps) and 4 negative
(black pickup clamps)
TRIGGER INPUT
Trigger input device to be
used Secondary Pickup CAP90-2 or PM9096/101 (Europe only).
TRIGGER OUTPUT
Connection to the Fluke 98 Dual banana plug (on small
box). Black plug to COM input,
red plug to TRIGGER input on
the Fluke 98.
SIGNAL OUTPUT
Connection to the Fluke 98 Red BNC connector (safe
model). Connected to INPUT A
on the Fluke 98.
RPM range:4-cylinder engine
6-cylinder engine
8-cylinder engine
600 to 8000 RPM
600 to 6000 RPM
600 to 4500 RPM
CABLE LENGTHS
Secondary Pickup cable (from
clamp to splitter box) 0.85 m
From splitter box to adapter
box (connected) 2 m
From adapter box to Fluke 98
(connected) 0.5 m
IGNITION ADAPTER
Box dimensions (length x
width x height) 90 x 25 x 40 mm
BATTERY
Battery requirement Type 6 LR 61,
9V Alkaline NEDA 1064,
IEC6F22.
Battery life 100 hours
ENVIRONMENTAL
Temperature operating 0 to +50 ºC
Temperature non-operating -40 to +70 ºC
Note: Press and simultaneously to read the version
number. Please contact your local representative for
information about upgrading the version.
Figure 7. Replacing the Battery