GxT V953-01, Universal LabScope KV Adapter User Manual
Labscope kv adapter, Introduction, General instructions
Introduction
The Ferret 953 adapts virtually any dual channel labscope or graphing multimeter to display
Kilovolts on both DIS and Conventional ignition systems. The ignition waveform will be
displayed in a parade pattern. Labscopes that do not have a Cylinder #1 Trigger will need to
use the Ferret 951 Cylinder #1 Trigger in conjunction with the Ferret 953 to properly synchronize
the parade pattern.
The quality of the ignition waveform depends on the performance of the labscope.
General Instructions
You must be familiar with the operation of the labscope being used with the Ferret 953. Please
refer to the operator’s manual for the labscope if necessary. All instructions contained
in this manual are written for the Ferret 953’s use on a dual output (two cylinders per coil)
distributorless ignition system. On a typical Double Output DIS system, you will have half of
the connectors plugged into each side of the Ferret 953. Use the polarity switches on the 953
to set the fi ring polarity the same (COP Ignitions), or each side different (DIS Ignitions).
The Ferret 953 uses a 9-volt battery for power. Press the Power button once and the indicator
light will be constantly on. After 5 minutes the 953 will power down. Press the Power button
a second time and the 953 will stay on until the battery runs down, or you turn it off.
Single Trace LabScopes
Some single trace labscopes are able to display ignition waveforms. You must connect both
the Cylinder #1 Trigger (Ferret 951), and the Ferret 953 to the input channel by stacking the
banana jacks. Since the Trigger is on the same channel as the Ferret 953, Cylinder #1 will
have a very high spike. Set the trigger to pickup just the top portion of the spike. This will
synchronize the display to #1 Cylinder. To analyze Cylinder #1, move the Ferret 951 Cylinder
#1 Trigger to another cylinder.
Distributor Ignitions
All instructions remain the same, except you connect only one KV Clip to the Coil wire. Do not
connect KV Clips to each individual spark plug wire. Simply plug the single KV Lead into any
connector. For Distributor ignitions where the coil is in the cap, you will need the appropriate
KV Pickup Plate found in the Available Accessories Section.
Coil per Plug Ignitions
Connect one spark wire clip to each coil. Set the polarity switches to the same polarity on
both sides.
Available Accessories
Ferret 951
Cylinder #1 Trigger
X020-44
KV Pickup Plate for GM HEI Internal Coil Ignitions
X020-45
KV Pickup Plate for Toyota Internal Coil Ignitions
X020-46
KV Pickup Plate for Nipondenso Internal Coil Ignitions.
X015-05
KV Pickup Plate for BMW Coil per Plug Ignitions
Safety Precautions
Read all Instructions before using the device
•
Always wear
eye pr
otection 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
ba
tte
ry
exp
lod
es
fl us
h th
e a
cid
aw
ay
fro
m p
ers
ons
sk
in
with
ge
ner
ous
am
oun
ts
of w
ate
r.
Fol
low
up
w
ith
a
neu
tra
liz
ing
so
lut
ion
of
ba
kin
g s
od
a
and then more water
.
Treat
clothing, vehicle
parts, and
equipment similarly
. Any
acid traces
ins
ide
eq
uip
men
t m
ust
be
re
mov
ed
by
gen
ero
us
rin
sin
g.
Dry
eq
uip
men
t
and place in a warm 50°C (120°F) oven until thoroughly dry
.
b.
Nev
er
use
a
w
ren
ch
o
n t
he
un
gro
un
ded
b
att
ery
te
rm
in
al
un
til
th
e
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 fl ames near batteries.
•
Before
working on
a vehicle
set the
brakes and
block the
wheels. Bewar
e
of automatic parking brake releases.
•
Keep your
work ar
ea well
ventilated and
free
of exhaust.
Engine
exhaust
contains deadly
poisons. T
reat
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 wir
es 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 fl oor
to reduce
the hazard of igniting gasoline vapor
.
•
Do
n
ot
let
te
st
lea
ds
win
d u
p i
n a
m
ovi
ng
fa
n o
r p
ulle
y.
R
out
e l
ead
s
away.
•
Remove fi nger
rings and
metal wrist
bands. They
can short
terminals and
become very hot from electric curr
ent.
Technical Support & Service
Technical Support & Service
Warranty
Questions or inquiries about service can be answered by contacting GxT, Inc., at:
Toll Free (800) 627-5655. Fax: (231) 627-2727, Toll Free (231) 782-0616, or
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.
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 workman-
ship 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.ʼs sole liability and buyerʼs 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 INCLUD-
ING 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 specifi c legal rights and you may also have other
rights which may vary from state to state.
E953-01G
©Copyright 2005, GxT, Inc., All Rights Reserved
Single Trace LabScopes
Distributor Ignitions
Coil per Plug Ignitions
OPERATORʼS MANUAL
LabScope KV Adapter
953
BNC to Banana
Adapter
Battery
Compartment
Ground
Lead
Power
Button
KV
Clips