
OPERATOR’S MANUAL
LabScope COP/FI Adapter 963
The Ferret 963 will adapt most dual channel labscopes to
read parade patterns of coil on plug ignitions or fuel injector
waveforms. The quality of the waveform pattern is dependant on the sampling subsystem of the labsope.
The 963 is powered by the vehicle’s 12 volt battery. Three
banana jack outputs provide ground, signal and sync signals to a labscope. Voltage test leads connect to each coil
on plug coil or fuel injector.
Connecting to a Labscope
Connect the power leads to the vehicle’s 12 volt battery.
Connect the Ground output on the 963 to the ground input
on the labscope. Connect the Sync output on the 963 to
channel one of the labscope. Connect the Signal output on
the 963 to channel two of the labscope.
Connecting to a Coil on Plug Module
Plug a test lead into the banana jack port labeled Sync on
the 963 to the Coil or Fuel Injector that you want to use as a
Cylinder #1 reference. Use the included back probe leads
to connect to the coil negative wire on the coil, or the trigger wire for the fuel injector. Continue connecting voltage
test leads to coils or injectors until you have connected to
all cylinders you want to test.
Conguring the Scope
Set your time base to approximately 20 milliseconds. Set
channel 1 and channel 2 voltage to approximately 10 volts.
It would be best to have each channel on a different part of
the screen.
Adjusting the Trigger
Adjust the voltage level and trigger slope of channel one to
stabilize the trigger of the pattern. Please note the trigger
pattern is intended to be a spike or hump, it will not resemble the waveform being tested.
Fine Tuning the Pattern
Adjust the timebase and voltage of channel two to enhance
the waveform for easier viewing. The photos on the right
show the 963 used to adapt a Ferret 93 scope to read ignition patterns on a Ford Multistrike COP system. The screen
on teh far right shows all coils on the screen at one time,
and the other screen has the time base changed to show
only one cylinder.
Parts & Accessories
Black Test Lead .................................... S011-90
Red Test Lead ......................................S011-92
Blue Test Lead ......................................S011-96
Back Probe Kit .....................................V912-01

Technical Support & Service
Questions or inquiries about service can be answered by contacting GxT, Inc., at: Toll Free (800) 627-5655. Fax: (231) 6272727, or repair@gxtauto.com. When sending an item to the factory address it to: GxT, Inc., 520 MM Riggs Drive., Cheboygan,
MI 49721-1061. Include a note describing the problem.
Warranty
FERRET BRAND LIMITED PRODUCT WARRANTY
GxT, Inc. of Cheboygan Michigan, warrants to the original purchaser that FERRET brand products are free from
defects in materials and workmanship for a period of two years from date of purchase. Our sole obligation for a
product within the above warranties will be to repair or replace, at our option, any defective parts and return the
product to the sender within the U.S.A., shipping prepaid, if it is sent to our Repair Department shipping prepaid
and accompanied by proof of purchase.
This Warranty does not apply to products which have been altered outside the factory; or repaired by anyone other
than the factory or its authorized service centers; or which have been damaged from accidents, negligence, or
abuse; or have been used differently than described in the printed instructions. Please note that wear and tear on
leads and replacement of consumable items such as: NOx Sensors, Oxygen Sensors, and paper, is not covered
by warranty.
GxT Inc.’s sole liability and buyer’s exclusive remedy is limited to repair or replacement of the product as stated
in the Limited Product Warranty. THERE ARE NO OTHER WARRANTIES EXPRESSED OR IMPLIED INCLUDING THOSE OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE AND GxT, INC. SHALL
NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING FROM THE SALE OR USE
OF THE PRODUCT.
Some states do not allow limitations on the length of implied warranties nor exclusion or limitations of incidental
or consequential damages, so that the above limitations and/or exclusion may not apply to you.
This warranty gives you specific legal rights and you may also have other rights which may vary from state to
state.
Safety Precautions
• Always wear eye protection when testing vehicles. Be extra careful near batteries and moving parts. Do not lay tools
on a battery.
• Battery gas is highly explosive.
a. If a battery explodes ush the acid away from persons skin with generous amounts of water. Follow up with a
neutralizing solution of baking soda and then more water.
Treat clothing, vehicle parts, and equipment similarly. Any acid traces inside equipment must be removed by
generous rinsing. Dry equipment and place in a warm 50°C (120°F) oven until thoroughly dry.
b. Never use a wrench on the ungrounded battery terminal until the grounded one has been disconnected. Contact
between the vehicle body metal and the hot terminal can cause sparks to ignite gas or even weld tools into a
battery short circuit.
c. Keep the space around a battery well ventilated.
d. Do not make sparks or allow ames near batteries.
• Before working on a vehicle set the brakes and block the wheels. Beware of automatic parking brake releases.
• Keep your work area well ventilated and free of exhaust. Engine exhaust contains deadly poisons. Treat Gas Detector
exhaust and drain hoses the same as the vehicle tailpipe. Both give off deadly exhaust fumes.
• Avoid electrical shocks caused by getting close to live ignition wires or touching the coil TACH terminal. A person’s
reaction near a live engine can be more damaging than the shock.
• Keep spark producing devices at least 0.5m (18”) above the oor to reduce the hazard of igniting gasoline vapor.
• Do not let test leads wind up in a moving fan or pulley. Route leads away.
• Remove nger rings and metal wrist bands. They can short terminals and become very hot from electric current.
E963-01G